Готові списки джерел за темами / Polymère recyclé

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Добірка наукової літератури з теми "Polymère recyclé"

Автор: Grafiati

Опубліковано: 13 квітня 2024

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Статті в журналах з теми "Polymère recyclé"

Vora, Nemi, Peter R. Christensen, Jérémy Demarteau, Nawa Raj Baral, Jay D. Keasling, Brett A. Helms, and Corinne D. Scown. "Leveling the cost and carbon footprint of circular polymers that are chemically recycled to monomer." Science Advances 7, no. 15 (April 2021): eabf0187. http://dx.doi.org/10.1126/sciadv.abf0187.

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Mechanical recycling of polymers downgrades them such that they are unusable after a few cycles. Alternatively, chemical recycling to monomer offers a means to recover the embodied chemical feedstocks for remanufacturing. However, only a limited number of commodity polymers may be chemically recycled, and the processes remain resource intensive. We use systems analysis to quantify the costs and life-cycle carbon footprints of virgin and chemically recycled polydiketoenamines (PDKs), next-generation polymers that depolymerize under ambient conditions in strong acid. The cost of producing virgin PDK resin using unoptimized processes is ~30-fold higher than recycling them, and the cost of recycled PDK resin ($1.5 kg−1) is on par with PET and HDPE, and below that of polyurethanes. Virgin resin production is carbon intensive (86 kg CO2e kg−1), while chemical recycling emits only 2 kg CO2e kg−1. This cost and emissions disparity provides a strong incentive to recover and recycle future polymer waste.

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Farshchi, Negin, and Yalda K. Ostad. "Sepiolite as a nanofiller to improve mechanical and thermal behavior of recycled high-density polyethylene." Progress in Rubber, Plastics and Recycling Technology 36, no. 3 (April 10, 2020): 185–95. http://dx.doi.org/10.1177/1477760620918596.

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Regarding the current demand for controlling plastic pollution, recycling of polymer sounds a promising solution. However, recycling causes mechanical and thermal shortcomings in polymers. Addition of nanoparticles to recycled materials may overcome these shortcomings. Nanocomposites can be achieved either by blending or through polymerization. Sepiolite as a nanoparticle enhances the thermal properties of polymers. In this study, the effect of sepiolite as a nanoparticle has been investigated on the thermal and mechanical behavior of recycled high-density polyethylene (HDPE). Hardness, density, Vicat softening temperature, melt flow rate (MFR), and differential scanning calorimetry has been investigated on recycled HDPE containing different amount of sepiolite. Results showed that both the amount of recycled HDPE and the sepiolite content affect the mechanical and thermal behavior of samples. Increasing the amount of recycled component resulted in increasing of MFR, a slight increase in density, and decrease in Vicat softening point, hardness, melting temperature, and degree of crystallization. As an opposite effect of these to factors on crystallinity of HDPE, sepiolite content has better effects to be considered separately for each recycle content. Sepiolite can be introduced as a low-cost reinforcement filler in recycling industry for tuning new compositions based on process condition, or vice versa.

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Karuppannan Gopalraj, Sankar, and Timo Kärki. "A Study to Investigate the Mechanical Properties of Recycled Carbon Fibre/Glass Fibre-Reinforced Epoxy Composites Using a Novel Thermal Recycling Process." Processes 8, no. 8 (August 8, 2020): 954. http://dx.doi.org/10.3390/pr8080954.

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Manufacturing-based carbon fibre-reinforced polymer (CFRP) and glass fibre-reinforced polymer (GFRP) wastes (pre-consumer waste) were recycled to recover valuable carbon fibres (CFs) and glass fibres (GFs), utilising a novel thermal recycling process with a cone calorimeter setup. The ideal conditions to recycle both the fibres occurred at 550 °C in atmospheric pressure. The processing time in the batch reactor to recycle CFs was 20–25 min, and to recycle GFs it was 25–30 min. The recovery rate of the recycled CFs was 95–98 wt%, and for GFs it was 80–82 wt%. Both the recycled fibres possessed a 100–110 mm average length. The resin phase elimination was verified by employing scanning electron microscopy (SEM). Furthermore, the fibres were manually realigned, compression moulded at room temperature, and cured for 24 h by a laminating epoxy resin system. The newly manufactured CFRP and GFRP composites were continuous (uniform length from end to end), unidirectionally oriented (0°), and non-woven. The composites were produced in two fibre volumes: 40 wt% and 60 wt%. The addition of ≈20 wt% recycled CFs increased the tensile strength (TS) by 12%, young modulus (YM) by 34.27% and impact strength (IS) by 7.26%. The addition of ≈20 wt% recycled GFs increased the TS by 75.14%, YM by 12.23% and the IS by 116.16%. The closed-loop recycling approach demonstrated in this study can effectively recycle both CFRP and GFRP manufacturing wastes. Preserving the structural integrity of the recycled fibres could be an advantage, enabling recycling for a specified number of times.

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Ftnan, Amera H., and Ragheed F. Makki. "BEHAVIOR OF RECYCLED AGGREGATE CONCRETE BEAMS STRENGTHENED WITH FRP." Kufa Journal of Engineering 13, no. 4 (October 14, 2022): 13–24. http://dx.doi.org/10.30572/2018/kje/130402.

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In this paper, the experimental work of this research included the test of seven concrete beams with dimensions (0.24 * 0.15 * 1.7) m. The mixing ratio is (1:2:3) and the water ratio(w/c) is 0.5. The first control beam has new aggregates and without strengthen with carbon fiber polymer sheet. The next three beams have the different ratio of recycled aggregate of (25%, 50%, 75%), and the last three beams have the different ratio of recycled aggregate of (25%, 50%, 75%) and with strengthen with carbon fiber polymer sheet. The experimental results showed that the ultimate load in the control beam (NC) became approximately (4,9,14) % respectively higher than the group of the recycle aggregate (B2. B3. B4) beams. When strengthening the beams by carbon fiber polymer sheet. The author notice the ultimate load in the control beam (NC) became approximately (20,16,0) % respectively lesser than the group of recycle aggregate (B5.B6.B7) strengthening beams.

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KAWABATA, Nariyoshi. "Recycle for Polymers. Polymeric Materials Premised for Recycled Use." Kobunshi 48, no. 10 (1999): 774–77. http://dx.doi.org/10.1295/kobunshi.48.774.

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Martikka, Ossi, and Timo Kärki. "Promoting Recycling of Mixed Waste Polymers in Wood-Polymer Composites Using Compatibilizers." Recycling 4, no. 1 (January 12, 2019): 6. http://dx.doi.org/10.3390/recycling4010006.

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Millions of tons of plastics are produced and consumed annually and should be recycled in a sustainable way. The effects of different compatibilizers on the properties of wood-mixed waste polymer composites are studied to promote recycling of plastics and to determine the potential of using waste plastics in composites. The effect of different addition levels and blending of compatibilizers is examined as well. The studied properties are microstructure, tensile and flexural properties, impact strength, and water absorption and thickness swelling in immersion. The results show that the addition of the selected compatibilizers improved the properties of wood-mixed waste polymer composites remarkably—all the studied mechanical properties and moisture resistance were improved by 50% or more. The effects depend strongly on the level of addition and the compatibilizer used. Findings show that compatibilization provides a feasible means to recycle waste plastics as feedstock for wood–plastic composites.

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Salas, Miguel A., Heriberto Pérez-Acebo, Verónica Calderón, and Hernán Gonzalo-Orden. "Analysis and Economic Evaluation of the Use of Recycled Polyamide Powder in Masonry Mortars." Polymers 12, no. 11 (November 11, 2020): 2657. http://dx.doi.org/10.3390/polym12112657.

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Due to the considerable amount of waste plastics and polymers that are produced annually, the introduction of these waste products in construction materials is becoming a recurrent solution to recycle them. Among polymers, polyamide represents an important proportion of polymer waste. In this study, sustainable and lightweight mortars were designed and elaborated, substituting the aggregates by polyamide powder waste. Mortars were produced with various dosages of cement/aggregates, and the polyamide substitutions were 25, 50, 75, and 100% of the aggregates. The aim of this paper is to determine the density and the compressive strength of the manufactured mortars to observe the feasibility for being employed as masonry or rendering and plastering mortars. Results showed that with increasing polymer substitution, lower densities were achieved, ranging from 1850 to 790 kg/m3 in modified mortars. Mortars with densities below 1300 kg/m3 are cataloged as lightweight mortars. Furthermore, compressive strength also decreased with more polyamide substitution. Obtained values in recycled mortars were between 15.77 and 2.10 MPa, but the majority of the values (eight out of 12) were over 5 MPa. Additionally, an economic evaluation was performed, and it was observed that the use of waste polyamide implies an important cost reduction, apart from the advantage of not having to manage this waste material. Consequently, not only the mechanical properties of the new recycled materials were verified as well as its economic viability.

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Momanyi, Job, Michael Herzog, and Peter Muchiri. "Analysis of Thermomechanical Properties of Selected Class of Recycled Thermoplastic Materials Based on Their Applications." Recycling 4, no. 3 (August 19, 2019): 33. http://dx.doi.org/10.3390/recycling4030033.

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Polypropylene and polystyrene are petroleum-based thermoplastics which are commonly used and disposed of in the environment after their service life, leading to environmental degradation. There is a need to recycle polypropylene and polystyrene, but the effect of recycling on thermo-mechanical properties is not well understood. This study aims to determine thermo-mechanical properties of the recycled polypropylene and recycled polystyrene and compare them with corresponding virgin polypropylene and newly produced polystyrene (general purpose polystyrene 1540 and high impact polystyrene 7240). The study was carried out by preparing bar-shaped samples of recycled polypropylene, recycled polystyrene, general purpose polystyrene 1540, and high impact polystyrene 7240 by compression molding using a hot press and thermally characterizing them to determine glass transition temperature and melting temperature using differential scanning calorimetry. The changes in Young’s modulus, tensile strength, hardness, and toughness due to recycling activities were determined at room temperature (24 °C), 40 °C, 60 °C, and 80 °C. The thermo-mechanical properties of recycled polystyrene (PS) were found to be comparable to those of high impact polystyrene (HIPS) 7240. The study revealed that the hardness and toughness for the recycled polymers were higher than those of corresponding virgin polymers. On the other hand, tensile strength and Young’s modulus for the recycled polymers were lower than those of the virgin polymers. Understanding the thermo-mechanical properties of the recycled polymers will contribute to more industrial applications hence increase the rate of recycling, resulting in a reduction in environmental pollution.

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Zhao, Junliang, Chenhao Xu, Linzhu Sun, and Dongyan Wu. "Behaviour of FRP-confined compound concrete–filled circular thin steel tubes under axial compression." Advances in Structural Engineering 23, no. 9 (January 20, 2020): 1772–84. http://dx.doi.org/10.1177/1369433219900941.

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This article presents test results of a recent study on the axial compressive behaviour of fibre-reinforced polymer–confined compound concrete–filled thin steel tubes. The usage of compound concrete, which is a mixture of fresh concrete and large pieces of recycled concrete lumps, can recycle waste concrete in a simple but effective way. Totally, three series of tests were conducted, with the parameters including the relative strength between fresh concrete and recycled concrete lumps, the volumetric percentage (i.e. mix ratio) of recycled concrete lumps, the diameter-to-thickness ratio of the steel tubes, and the thickness of the fibre-reinforced polymer jackets being investigated. The stress–strain curves of the steel tube and compound concrete core were derived and the effects of different parameters were then examined and discussed. An existing stress–strain curve model of fibre-reinforced polymer–confined normal concrete-filled steel tubes was also found performing well in predicting the behaviour of fibre-reinforced polymer–confined compound concrete-filled steel tubes.

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Vidakis, Nectarios, Markos Petousis, Athena Maniadi, Emmanuel Koudoumas, Achilles Vairis, and John Kechagias. "Sustainable Additive Manufacturing: Mechanical Response of Acrylonitrile-Butadiene-Styrene over Multiple Recycling Processes." Sustainability 12, no. 9 (April 27, 2020): 3568. http://dx.doi.org/10.3390/su12093568.

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Sustainability in additive manufacturing refers mainly to the recycling rate of polymers and composites used in fused filament fabrication (FFF), which nowadays are rapidly increasing in volume and value. Recycling of such materials is mostly a thermomechanical process that modifies their overall mechanical behavior. The present research work focuses on the acrylonitrile-butadiene-styrene (ABS) polymer, which is the second most popular material used in FFF-3D printing. In order to investigate the effect of the recycling courses on the mechanical response of the ABS polymer, an experimental simulation of the recycling process that isolates the thermomechanical treatment from other parameters (i.e., contamination, ageing, etc.) has been performed. To quantify the effect of repeated recycling processes on the mechanic response of the ABS polymer, a wide variety of mechanical tests were conducted on FFF-printed specimens. Regarding this, standard tensile, compression, flexion, impact and micro-hardness tests were performed per recycle repetition. The findings prove that the mechanical response of the recycled ABS polymer is generally improved over the recycling repetitions for a certain number of repetitions. An optimum overall mechanical behavior is found between the third and the fifth repetition, indicating a significant positive impact of the ABS polymer recycling, besides the environmental one.

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Більше джерел

Дисертації з теми "Polymère recyclé"

Mattlet, Agnès. "Influence de l'utilisation d'une matrice recyclée sur le comportement et les performances d'un composite lin/polypropylène lors de sa mise en oeuvre et de son vieillissement hydrothermique." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2022. http://www.theses.fr/2022UBFCK079.

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Анотація:

Afin de répondre à l'intérêt grandissant autour de l'écologie, le développement de matériaux éco-responsables est devenu prépondérant dans des domaines tels que les transports et la mobilité. Le remplacement des fibres synthétiques par des fibres naturelles et des polymères vierges par des recyclés sont des solutions potentiellement intéressantes. En effet, ces matériaux présentent des propriétés mécaniques spécifiques similaires et une empreinte environnementale plus faible. Néanmoins, les fibres naturelles présentent une forte hydrophilie, ce qui peut poser problème lors d'une utilisation à long terme en extérieur. Les polymères quant à eux subissent des modifications lors de leur recyclage qui peuvent affecter leur compatibilité avec les fibres. L'objectif de cette thèse est d'étudier comment l'utilisation d'une matrice recyclée influe sur les propriétés d'usage de composites polypropylène/lin et sur leur comportement lors de vieillissements hydrothermiques et cycliques. Dans un premier temps, l'influence des paramètres de mise en œuvre (pourcentage d'agent compatibilisant, temps, température et pression de consolidation, vitesse de refroidissement et température de sortie du moule) sur les propriétés mécaniques des composites à matrice vierge a été étudiée afin d'obtenir un matériau de référence. Ensuite, l'impact de l'utilisation de matrices recyclées sur les propriétés du composite a été étudiée. Enfin, des vieillissements hydrothermiques et cycliques (immersion, gel, séchage) ont été appliqués aux différents composites (matrices vierges et recyclées). Une analyse multi-échelle conjuguant caractérisations physico-chimiques, structurales et mécaniques a été réalisée au cours du vieillissement afin de mieux comprendre l'effet de matrices recyclées sur le comportement dans le temps des composites
To respond to the growing interest in ecology, the development of eco-responsible materials has become preponderant in areas such as transportation and mobility. One potential solution is to replace synthetic fibers by natural ones and virgin polymers by recycled ones. Indeed, these materials present similar specific properties and a lesser environmental footprint. However, natural fibers are very hydrophilic, which can be a problem in long-term outdoor use. As for the polymers, they undergo modifications during recycling that can affect their compatibility with fibers. This thesis' aim is to investigate how the use of a recycled matrix affects the properties of polypropylene/flax composites and their behavior under hydrothermal and cyclic ageing. First, the influence of processing parameters (compatibilizing agent's percentage, consolidation time, temperature and pressure, cooling rate and exit temperature) on the mechanical properties of virgin matrix composites was studied in order to obtain a reference material. Then, the impact of the use of recycled matrices on the properties of the composite was studied. Finally, hydrothermal and cyclic ageing (immersion, freezing and drying) were applied to all composites (with virgin and recycled matrices). A multiscale analysis combining physicochemical, structural and mechanical characterizations was carried out during ageing to better understand the influence of the matrix on the behavior of the composites over time

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Achtioui, Touria. "Mise en œuvre et caractérisation de matériaux polymères issus d' emballages plastiques recyclés." Thesis, Reims, 2014. http://www.theses.fr/2014REIMS036.

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L'objectif de cette thèse fut de comprendre les mécanismes de dégradation des SAN et des ABS à partir de déchets de rebuts de production bruts et/ou chargés de la société Albéa (anciennement connue sous le nom d'Alcan Packaging). Ce projet devrait permettre de répondre à des exigences en termes de diminution de volume de déchets, d'amélioration de propriétés et de diminution de coûts. Ce travail permettra également d'améliorer notre compréhension sur des aspects fondamentaux de recyclabilité physique des polymères lors de différents cycles en injection moulage. L'étude au mélangeur interne a permis de mettre en évidence les phénomènes de dégradation sous l'influence des conditions de mise en œuvre (vitesse, température et temps de mélange). Ainsi, dans le cas du SAN, les mécanismes de la dégradation thermo-mécanique sont générés à la fois par la thermo-oxydation et par la dégradation mécanique impliquant des coupures de chaînes. Dans le cas des ABS, les mécanismes de dégradation thermo-mécanique mis en jeu impliquent, outre les sites chromophores, plusieurs réactions en compétition comme la réticulation et les coupures de chaîne. L'originalité de cette étude réside dans la mise en évidence expérimentale, à travers des techniques originales (TMDSC, RMN du solide, AFM), d'un mécanisme théorique de dégradation des SAN et des ABS en se plaçant dans les conditions réelles de mise en œuvre. Nous avons alors pu mettre en évidence la réelle contribution de l'effet thermique et de l'effet du cisaillement qui jusqu'alors, dans la littérature, semblait non étudié. Finalement, les effets de dégradation du SAN n'ont pas affecté les propriétés mécaniques bien qu'une décoloration et une diminution de la viscosité aient été observées. En revanche, dans le cas de l'ABS recyclé, les propriétés en traction et la résistance au choc ont considérablement été affectées, notamment par la présence de vernis qui interfère sur le transfert de contraintes entre les nodules de PB et la matrice SAN
The aim of this PhD thesis was to understand the mechanisms of degradation of SAN and ABS from waste sprues and undelivered packages from Albea Group (formerly known as Alcan Packaging). The results of this project should allow the reduction of waste volume, the improvement of material properties and a costs reduction. The present workshould also improve the understanding of the fundamental aspects of physical recyclability of polymers during different cycles in injection molding.The first part of the study performed using an internal mixer showed how degradation was influenced by processing parameters such as the rotor speed, the temperature and the mixing time. Thus, considering the SAN, the mechanisms of the thermo-mechanical degradation are both generated by the thermo-mechanical degradation and by the oxidation that involves chain scissions. In the case of ABS, its mechanisms of thermo-mechanical degradation imply further chromophores sites, several competition reactions such as crosslinking and chain scissions.The innovative feature of our work was to establish a theoretical mechanism of degradation of ABS and SAN under processing conditions used in industry thanks to our experimental approach with original investigation procedure (TMDSC, solid state NMR, AFM). Afterwards, we were then able to identify the real contribution on the one hand of the shearing effect, which seemed still unstudied in the literature, and of the other hand of the thermal effect.Finally, it was found that degradation was not affecting SAN mechanical properties whereas discoloration and a reduction of viscosity were observed. On the opposite, the recycling of ABS resulted in a significant reduction of tensile properties and the impact strength due to the presence of varnish which interfered in stress transfer between PB nodules and the SAN matrix

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Cabrera, Alvino Géraldine. "Eco-design and processing of recycled multilayer/multiphase polymer materials : Structure-properties-process relationship." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI076.

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Dans un contexte d’économie circulaire, les premiers travaux de la thèse ont été consacrés à l’étude de l’aptitude à la mise en forme de films souples recyclés provenant de déchets agricoles d’enrubannage et d’horticulture. Ces films multicouches contiennent initialement un additif conférant au produit final un caractère collant. Lors de leur recyclage, cet additif est toujours présent et migre à la surface. Un accent particulier a été dédié à la compréhension et l’étude des mécanismes de migration de cet additif en fonction de l’architecture moléculaire des polyéthylènes utilisés ayant des taux de branchements différents. Pour ce faire, des mélanges modèles, avec ou sans charges minérales, ont été élaborés. Outre des études morphologiques et microstructurales, des méthodologies expérimentales originales ont été mises en place pour étudier la cinétique de migration/diffusion avec des dispositifs tribo-rhéométriques et de suivi du "tack" en surface des films. Quant au comportement rhéologique en cisaillement et en élongation, il est influencé par la présence de cet additif. La deuxième partie de cette étude a été consacrée à l’appréhension des réalités de l’activité du recyclage d’autres films mutlicouches souples à base de polypropylène et polyéthylène. Compte tenu de la complexité de ces gisements, nous avons choisi d’étudier des mélanges modèles équivalents en leur associant des compatibilisants de nature physique. L’influence de ces derniers sur les propriétés rhéologiques, morphologiques et mécaniques a été ensuite évaluée. Cette étude a été ensuite transposée à des systèmes multiphasés post usage. Les derniers travaux ont été dédiés à une approche prospective. Il s’agit d’aller de l’éco-design à l’élaboration de multi-micro/nanocouches facilement recyclables. L’originalité de cette étude consiste à limiter le nombre de constituants, à réduire/contrôler les épaisseurs des couches et éviter l’utilisation des couches de liants. Enfin, leurs propriétés rhéologiques, morphologiques et mécaniques ont été évaluées en fonction des cycles de recyclage mécanique
In the context of a circular economy, the first works of the thesis were devoted to the study of the processing ability of recycled flexible films from agricultural bale wrapping film's waste. These multilayer films initially contain an additive that gives the final product a sticky character. During recycling, this additive is still present and migrates to the surface. A particular emphasis has been placed on understanding and studying the migration mechanisms of this additive according to the molecular architecture of the polyethylenes used with different branching content. Model blends, with or without mineral fillers, were prepared for this purpose. In addition to morphological and microstructural studies, original experimental methodologies have been set up to study the migration/diffusion kinetics with tribo-rheometry and film surface's "tack" monitoring devices. As for the rheological behaviour in shear and elongation, it is influenced by the presence of this additive. The second part of this study was devoted to understanding the realities of the recycling activity of other polypropylene- and polyethylene-based multilayer films. Given the complexity of these materials, we chose to study equivalent model blends by combining them with physical compatibilizers. The influence of the latter on the rheological, morphological and mechanical properties was then evaluated. This study was then transposed to postconsumption multiphase systems. The last studies were devoted to a future-oriented approach. This involves going from eco-design to the development of easily recyclable multimicro/ nanolayers. The originality of this study consists in limiting the number of constituents, reducing/controlling the thickness of the layers and avoiding the use of tie-layers. Finally, their rheological, morphological and mechanical properties have been evaluated according to number and type of mechanical recycling cycles

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Holbery, James D. "Recycle polymer characterization and adhesion modeling /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/10586.

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Ennahal, Ilyas. "Valorisation des sédiments de dragage dans des matrices polymères." Thesis, Ecole nationale supérieure Mines-Télécom Lille Douai, 2019. http://www.theses.fr/2019MTLD0015.

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Анотація:

En France, les volumes de sédiments de dragage générés chaque année pour la maintenance des ports et des voies navigables sont estimés à environ 50 millions de mètres cubes. La gestion de ces sédiments représente un enjeu économique, social et environnemental pour les gestionnaires. Aujourd’hui, l’une des solutions privilégiées est le développement de la gestion à terre de ces matériaux, qui consiste à les réutiliser comme matières premières secondaires en substitution partielle ou totale de matières nobles. De nombreux travaux de recherche ont été effectués sur la problématique de la valorisation des sédiments de dragage et de curage et de nouvelles filières sont actuellement toujours à l’étude (ciments, enrochements pour travaux maritimes et fluviaux, bétons cellulaires, granulats artificiels, etc.). Ce travail de thèse s’inscrit dans un contexte d’économie circulaire et vise à permettre le développement d’une gestion durable et responsable des ressources naturelles non renouvelables. Ceci à travers la réutilisation des sédiments de dragage dans la formulation de matériaux composites traités par des liants thermodurcissables ou thermoplastiques. Ainsi, après un travail de synthèse bibliographique sur les principales propriétés des sédiments de dragage, les méthodes de formulation des mortiers polymères et les modalités d’intégration des matériaux alternatifs dans ces matrices sont été décrites. Les expérimentations portent plus particulièrement sur la formulation de matériaux à partir de polymères thermodurcissables (résines de type Epoxy ou Polyester) et thermoplastiques (plastiques recyclés issus du tri des déchets). La validation des performances techniques des formulations optimisées pour chacun des traitements a été effectuée pour des usages en revêtements de sols ou en granulats légers dans des bétons hydrauliques. Enfin, la dernière partie de la thèse a été consacrée à l’étude de l’acceptabilité environnementale des nouveaux matériaux à travers la réalisation des essais de lixiviation dynamique sur monolithes. Les travaux menés ont permis de démontrer la faisabilité technique et environnementale de la valorisation des sédiments en tant que charge minérale dans des matrices polymères, avec des taux d’incorporation de sédiments significatifs pouvant atteindre jusqu’à 80 %. Ce qui confirme l’intérêt de cette typologie de traitement pour la valorisation des sédiments de dragage
In France, the volume of dredged sediments generated each year through maintenance of ports and waterways, is estimated at around 50M cubic meters. The management of these sediments represents an economic, social and environmental stake for the managers of the waterways. Today, one of the solution is the onshore management of these sediments, which consists on their reuse as secondary raw materials in partial or total substitution of natural materials for civil engineering applications such as sub-base road materials, embankments, concrete, bricks/tiles, and cement production. In this context this study was initiated in order to define a long-term value chain for dredging sediments for a sustainable and responsible management of natural resources. This through the valorization of dredged sediments in polymer matrix mortar formulations. Indeed, this research presents an innovative solution that preserves natural resources by promoting the use of local resources, such as dredged sediments. In order to achieve this objective, the study included several phases : the first part is devoted to the state of the art concerning dredged sediments, polymer mortars and the recovery of waste in polymer mortars. In the second part, we studied recovery of sediment in thermosetting matrix polymers (Epoxy-Polyester). In the third part we studied the possibilities of incorporating sediments in recycled thermoplastic matrix. The materials from this combination have been used as lightweight aggregates for mortar formulation. Finally, in the last part was devoted to environmental monitoring of new formulated materials. This is done through leaching tests carried out on crushed samples and monoliths, to ensure the environmental safety of these materials. The result obtained with the different formulations tested, show the technical and environmental feasibility of valorization of sediments as mineral filler in polymer mortars, with sediments incorporation rates range between 50 and 80%. Indeed, the use of a polymer matrix makes it possible to have better physico-mechanical and chemical results with cementitious matrix mortars

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Naït-Ali, Kako Linda. "Le PET recyclé en emballages alimentaires : approche expérimentale et modélisation." Montpellier 2, 2008. http://www.theses.fr/2008MON20023.

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Mohammadzadeh, Maryam. "Characterization of recycled thermoplastic polymers." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19650.

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In this study thermal and mechanical properties and chemical structure of four differentpolymers (PE, PP, polyASA and PVC) were investigated to find out if the recycled polymershad the same properties and can be used in the same applications as the virgins or not.FT-IR was used for investigation of chemical structure. TGA, DSC and thermal stability wereused to compare the thermal properties. Tensile test also used to examine the mechanicalproperties.All the tests showed the recycling process is not done completely well. The differences inresults for virgins and recycled samples are the reasons which verified this claim.The results obtained from this study clarifying that the amount of stabilizer in the recycledpolymers were considerably less than the amount in virgins, means that the company had notadded enough stabilizer during the recycling process.

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El, Hajj Sleiman Ghinwa. "Aptitude à la mise en oeuvre de thermoplastiques recyclés et de biopolymère : analyse thermorhéologique de mélanges PP/PE." Thesis, Nantes, 2018. http://www.theses.fr/2018NANT4029/document.

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Le présent travail analyse l’effet de la présence de polluants sur le comportement thermo-rhéologique des thermoplastiques recyclés pendant sa mise en oeuvre. Nous avons fait une série d’expériences d’écoulement en utilisant des polymères pollués modèles (mélanges de PP/PE dont on connait la concentration relative). La pression et la température au sein d’écoulement ont été mesurées à l’aide d’un dispositif expérimental développé dans le laboratoire. Les résultats montrent un effet plus visible sur la pression de la présence de PP dilué dans le PE que dans le cas de PE dilué dans le PP. Ces résultats ont été expliqués par les différentes morphologies établies dans l’écoulement. Des modèles numériques ont été développés afin de confirmer les hypothèses faites sur ces morphologies. Pour étudier la sensibilité des grandeurs mesurables, pression et température, vis-à-vis de la fraction volumique de PE, on a développé un modèle analytique. Ce modèle appelé Einstein power law Epl décrit de façon fiable l’évolution de la viscosité du mélange de PP/PE en fonction de la concentration de PE diluée. Concernant le mélange de PP/PE avec une concentration diluée de PP, on a trouvé que le modèle de Lees est le meilleur pour décrire la viscosité de ce mélange
This work deals with the effect of the presence of pollutants on the thermo-rheological behavior of recycled thermoplastics during process. We have realized multiple of experiments on models of recycled thermoplastics (mixtures of PP/PE knowing their relative concentrations). The pressure and the temperature within the flow were measured using a device that was developed in a previous work. The experimental results show an effect more visible on the measured pressure drops due to the dilute presence of PP in PE than that of the dilute presence of PE in PP. These observations can be explained by the different morphologies established in the flow. In order to confirm the hypotheses predicted on the morphologies of the mixtures, a finite element model was developed. To study the sensibility of the measureable parameters, pressure and temperature, with respect to the volume fraction of PE, we have developed an analytical model, Einstein power law, that describes the viscosity of the mixture of PP/PE with a dilute presence of PE. Concerning the mixture of PP/PE with a dilute presence of PP, we found that the Lees model is the best to describe the viscosity of such mixtures

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Basto, M. José Ricardo. "Mechanical characterization of aged recycled polymers and applications." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2649.

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Thesis (M.S.)--West Virginia University, 2002.
Title from document title page. Document formatted into pages; contains xxv, 217 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 163-164).

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Hugo, Annie-May. "Recycled polymer composites for structural applications." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/9520/.

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This thesis documents the development and testing of recycled, immiscible polymer blends for structural applications. The project was a Knowledge Transfer Partnership co-funded by Innovate UK and a Plastic Lumber manufacturer, who had a development contract with Network Rail. Network Rail contributed towards a permanent fatigue testing facility for full-size sleepers. Recycled plastic lumber converts lower grade, recyclate waste streams into products for decking, fencing, etc. The aim was to create formulations capable of carrying significant in-service, dynamic loads over a wide spectrum of outdoor temperatures and conditions with 50 years minimum service life for railway sleepers. Mixed polyethylene/polypropylene recyclates were tested in iterative laboratory trials reinforced with polystyrene, mineral fillers and glass fibre. Flexural properties and impact resistance amongst other tests aided formulation design for production trials. A synergistic reinforcing effect was found between glass fibre and mica within an immiscible recycled polymer blend. Polymer blends and fibre reinforced grades were manufactured by intrusion moulding into profiles up to 2800x250x130 mm. Profiles of four trial and two production grades were tested in flexure, compression and thermal expansion. Large statistical sample sizes were required due to waste stream batch-to-batch variability. Strength and modulus were found to change with manufacturing technique, profile size, profile orientation, test type, and test parameters. Strengths were good, though lower than predicted due to premature failure. The fracture process was found to initiate at inclusions, ductile crack growth continued to a critical size followed by brittle facture. Glass fibre significantly improved strength, modulus, maximum operating temperature and thermal expansion. In 2012, two major product approvals were attained after extensive qualification testing that included fatigue testing equivalent to 20 years in service. British Board of Agrément accredited a crib earth retaining wall system. Network Rail approved for track trial sleepers made from the glass fibre reinforced grade.

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Книги з теми "Polymère recyclé"

Recycled polymers: Chemistry and processing. Shropshire, England: Smithers Rapra, 2015.

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Ismail, Hanafi, Sapuan S. M., and Ilyas R. A., eds. Recycled Polymer Blends and Composites. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-37046-5.

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J, Brogan, and Construction Engineering Research Laboratories (U.S.), eds. Development of recycled polymer blends for thermal spray applications. [Champaign, IL]: US Army Corps of Engineers, Construction Engineering Research Laboratories, 1997.

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Recycle '88 (1988 : Davos, Switzerland) and Annual Forum on Recycling, Degradation and Waste Handling Technologies, (1st : 1988 : Davos, Switzerland), eds. Recycle '88: Polymers, Processing, Applications, Business Development and Marketing : first annual forum on recycling, degradation and waste handling technologies : May 31-June 2, 1988 : Davos, Switzerland. Zürich: Maack Business Services, 1988.

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Recycled Polymers: Properties and Applications. Smithers Rapra, 2015.

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Perrin, Didier, ed. Recycled Polymers: Eco-Design, Structure/Property Relationships and Compatibility. MDPI, 2024. http://dx.doi.org/10.3390/books978-3-7258-0001-8.

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Woodfiber-Plastic Composites: Virgin & Recycled Wood Fiber & Polymers for Composites (Proceedings). Forest Products Society, 1996.

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Biopolymers: Processing and Products. Elsevier Science & Technology Books, 2014.

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Biopolymers: Reuse, Recycling, and Disposal. William Andrew, 2013.

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Niaounakis, Michael. Biopolymers: Reuse, Recycling, and Disposal. Elsevier Science & Technology Books, 2013.

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Частини книг з теми "Polymère recyclé"

Romani, Alessia, Raffaella Suriano, Andrea Mantelli, Marinella Levi, Paolo Tralli, Jussi Laurila, and Petri Vuoristo. "Composite Finishing for Reuse." In Systemic Circular Economy Solutions for Fiber Reinforced Composites, 167–90. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-22352-5_9.

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AbstractCoating processes are emerging for new applications related to remanufactured products from End-of-Life materials. In this perspective, their employment can generate interesting scenarios for the design of products and solutions in circular economy frameworks, especially for composite materials. This chapter would give an overview of coating design and application for recycled glass fiber reinforced polymers on the base of the experimentation made within the FiberEUse project. New cosmetic and functional coatings were developed and tested on different polymer composite substrates filled with mechanically recycled End-of-Life glass fibers. Afterwards, recycled glass fiber reinforced polymer samples from water-solvable 3D printed molds were successfully coated. Finally, new industrial applications for the developed coatings and general guidelines for the coating of recycled glass fiber reinforced polymers were proposed by using the FiberEUse Demo Cases as a theoretical proof-of-concept.

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Gooch, Jan W. "Recycle." In Encyclopedic Dictionary of Polymers, 612. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9811.

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Raspall, Felix, and Carlos Bañón. "Large-Scale 3D Printing Using Recycled PET. The Case of Upcycle Lab @ DB Schenker Singapore." In Computational Design and Robotic Fabrication, 432–42. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8637-6_37.

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AbstractLarge-scale additive manufacturing for architectural applications is a growing research field. In the recent years, several real-scale projects demonstrated a preliminary viability of this technology for practical applications in architecture. Concurrently, the use of recycled polymers in 3d printing has progressed as a more sustainable feed for small-scale applications. However, there are limited empirical examples on the use of additive manufacturing using recycled polymers in large-scale and real-life architectural applications. This project develops two design and fabrication approaches to large-scale manufacturing using recycled Polyethylene Terephthalate (PET) from single-use bottles into large design elements and tests them in a real-life project. The two designs are discussed in detail: a 4 m diameter dome-like chandelier printed with a robotic extruder using recycled PET pellets, and a 3.5 m diameter chandelier using a Fused Deposition Modeling (FDM) printing farm. The paper covers the state of the art of related printing technologies and their gaps, describes the printing process developed in this research, details the design of the domes, and discusses the empirical evidence on the benefits and drawbacks of large-scale additive manufacturing using recycled polymers. Overall, the research demonstrates the possibilities of large-scale additive manufacturing using recycled polymers, adding findings form a real-life project to the growing body of research on additive manufacturing in architecture.

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Gooch, Jan W. "Recycled Plastic." In Encyclopedic Dictionary of Polymers, 612. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9812.

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Licea Saucedo, Daniel C., Rubén González Nuñez, Milton O. Vázquez Lepe, and Denis Rodrigue. "Polymer Processing Technology to Recycle Polymer Blends." In Recycled Polymer Blends and Composites, 111–32. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-37046-5_7.

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Gama, Nuno, Ana Barros-Timmons, and Artur Ferreira. "The Recycling of Construction Foams: An Overview." In Creating a Roadmap Towards Circularity in the Built Environment, 95–105. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-45980-1_9.

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AbstractIn 1987, the United Nations Brundtland Commission defined sustainability as “meeting the needs of the present without compromising the ability of future generations to meet their own needs.” Yet, after all these years, the humankind is dealing with catastrophic environmental problems which may jeopardize the future generations wellbeing. One cause of such issue is pollution associated to polymer’s disposal. Polymers are mainly produced using petroleum derivatives and/or non-degradable. In addition, after their use, they are normally disposed in land fields or burned for energy. Yet, due to environmental problems, these solutions are not valid options, so plastic wastes must be recycled and used to produce new materials. This circular economy concept is not only a requirement for preventing pollution but is also a need for the reduction of the costs associated with their production and for the enhancement of the eco-efficiency of materials. Furthermore, this approach also addresses the risk of shortage of raw materials in the medium future. With this in mind, this document intends to give an overview of the recycling of construction foams with special focus on polyurethane (PU) and polystyrene (PS) foams. It aims to highlight the possible routes to recycle construction foams, presenting the differences and challenges of recycling different types of polymers. In that perspective, chemical and mechanical recycling routes are discussed, as well as energy recover alternatives. Finally, life cycle analysis (LCA) reports of these products are presented.

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Real, Luís Eduardo Pimentel. "Use of Polymer Materials in Construction." In Recycled Materials for Construction Applications, 35–45. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-14872-9_3.

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Mantelli, Andrea, Alessia Romani, Raffaella Suriano, Marinella Levi, and Stefano Turri. "Additive Manufacturing of Recycled Composites." In Systemic Circular Economy Solutions for Fiber Reinforced Composites, 141–66. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-22352-5_8.

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AbstractAn additive remanufacturing process for mechanically recycled glass fibers and thermally recycled carbon fibers was developed. The main purpose was to demonstrate the feasibility of an additive remanufacturing process starting from recycled glass and carbon fibers to obtain a new photo- and thermally-curable composite. 3D printable and UV-curable inks were developed and characterized for new ad-hoc UV-assisted 3D printing apparatus. Rheological behavior was investigated and optimized considering the 3D printing process, the recyclate content, and the level of dispersion in the matrix. Some requirements for the new formulations were defined. Moreover, new printing apparatuses were designed and modified to improve the remanufacturing process. Different models and geometries were defined with different printable ink formulations to test material mechanical properties and overall process quality on the final pieces. To sum up, 3D printable inks with different percentages of recycled glass fiber and carbon fiber reinforced polymers were successfully 3D printed.

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Hirami, Matsuo. "Some Topics in Polymer Recycle in Japan." In Science and Technology of Polymers and Advanced Materials, 603–11. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-0112-5_53.

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White, G., and F. Hall. "Comparing asphalt modified with recycled plastic polymers to conventional polymer modified asphalt." In Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields, Volume 1, 3–17. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003222880-1.

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Тези доповідей конференцій з теми "Polymère recyclé"

DINUSHKA, D. K. S., K. G. A. S. WAIDYASEKARA, and K. G. DEWAGODA. "APPLICABILITY OF RECYCLED PLASTIC FOR ROAD CONSTRUCTION IN SRI LANKA." In 13th International Research Conference - FARU 2020. Faculty of Architecture Research Unit (FARU), University of Moratuwa, 2020. http://dx.doi.org/10.31705/faru.2020.28.

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Even though Polymer Modified Bitumen (PMB) is being emerged as an alternative for conventional asphalt in the global context, the use of recycled plastics to produce PMB is still an unorthodox concept in Sri Lanka. Therefore, the study aimed at evaluating the applicability of recycled plastic as a construction material in road construction in Sri Lanka. The study apprehended a qualitative approach comprising a literature review, followed by twelve expert interviews. The data were analysed using manual content analysis. The economic, environmental, and social benefits and enablers along with social, technology-related, knowledge-related, economic, and resource-related barriers in implementing PMB in Sri Lanka were identified. Additionally, strategies to overcome such barriers were suggested. The study further recommends the use of recycled polymers over virgin polymers; increasing the awareness level in the industry; extending the government involvement; and establishing a standard specification.

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Constantinescu, Doina, Bogdan Boata, Mihaela Iordache, Maria Daniela Stelescu, Mihai Georgescu, and Maria Sönmez. "Technological Considerations Regarding the Mechanical Recycling of Waste from Polyethylene and Polypropylene Packaging." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.iv.3.

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Plastic materials have found applications in almost all fields as a result of their properties and low price. More than 30% of the production of plastics is intended for obtaining packaging. Since they are non-biodegradable and represent a hazard to the environment, strategies and directives have been adopted at national, European, and global level, regarding the recycling of packaging waste. The main ecological method of recycling them is mechanical recycling. The paper presents the main stages of an industrial mechanical recycling process, namely: collection, sorting, grinding, washing, drying, (purification), granulation, packaging, storage and marketing. This underlines the fact that in order to obtain high-performance PE or PP raw materials from recyclable polymer waste from packaging, the recycling process requires advanced sorting to separate them into polymer classes, because the mixtures of the polymers involved are incompatible in their melted state. This incompatibility leads to the lower processability and physical-mechanical performance of the products manufactured from these types of recycled polymer waste. In addition to the sorting methods currently used in the industry, new advanced methods of selective sorting of waste according to the type of polymer were also presented, such as: spectroscopic method, selective dissolution of polymers, thermal adhesion method, froth flotation method, electrostatic separation methods. It was emphasized that by using state-of-the-art technologies such as electron beam treatment followed by the electrostatic separation of waste mixtures from packaging, it is possible to obtain recycled polymers with high purity (90-97%) at advantageous production costs.

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Hosokawa, Meire Noriko, and Jane Maria Faulstich de Paiva. "Flexural properties of recycled ABS/recycled carbon fiber fabric composites." In PROCEEDINGS OF THE 37TH INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY (PPS-37). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0168558.

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Wang, James T. "Numerical Simulation of Co-Injection Molding." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1241.

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Abstract In the co-injection molding process, two (or more) different polymers are injected into the cavity simultaneously or sequentially. Different properties of these two polymers and their distribution in the cavity greatly affect the applications of this molding process. The skin layer can use special polymers to provide good appearance and texture, strength, chemical resistance, EMI shielding and other functions. The core layer can use recycled or inexpensive materials. Together these can improve part quality and lower the cost. However, due to the dynamic interaction of two polymers in the manufacturing process and their difference in properties, process control becomes more complicated and process design becomes a challenge. The rules used for the traditional injection molding process design may not always be useful for co-injection molding any more. An integrated CAE software has been developed to simulate the co-injection molding process. In this study, the capability and usefulness of the CAE tool will be shown. The control of polymer distribution will be discussed. The effects of polymer properties and their distribution on part quality will also be studied.

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Aversa, C. "PET foaming: development of a new class of rheological additives for improved processability." In Italian Manufacturing Association Conference. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902714-45.

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Abstract. Polymer foaming is a process broadly used for manufacturing light weight packaging solutions. Polystyrene (PS) is the most widespread material for this application, as it combines easy processability, low cost and high performance of the resulting items. However, foamed PS is difficult to recycle and highly polluting for the oceans and aquatic environment. Polyethylene terephthalate (PET) is, instead, commonly recycled and R-PET is broadly used for several industrial applications. Yet, PET quickly loses viscosity during the foaming process, due to thermo-hydrolytic and oxidative degradation thus causing poor foaming. In this paper, an innovative combination of chain extenders, anti-oxidants and nucleating agents to modify PET rheology is studied. The additives were experimented both in off-line and in-line apparatus. The experimental results show PET rheology can be customized by appropriately modulating the content of the different additives, thus making PET suitable for foaming process of high-quality items.

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Shuaib, Norshah A., and Paul T. Mativenga. "Energy Intensity and Quality of Recyclate in Composite Recycling." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9387.

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Composite materials are widely used in various sectors such as aerospace, wind energy and automotive. The high demand especially for thermoset based glass (GFRP) and carbon fibre reinforced polymer (CFRP) composite materials has led to a rise in volumes of manufacturing scrap and end-of-life products as composite waste. Unlike thermoplastic polymers, thermoset polymers have difficulties in recycling due to their cross-linked nature. In this paper, thermoset composite recycling processes which are grouped into mechanical, thermal and chemical methods are assessed from the perspectives of energy consumption, processing rate and mechanical performance of the recycled products. The paper presents a benchmark of composite technologies as well as identifies research challenges.

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Hubo, Sara, Laurens Delva, Nicolas Van Damme, and Kim Ragaert. "Blending of recycled mixed polyolefins with recycled polypropylene: Effect on physical and mechanical properties." In PROCEEDINGS OF THE REGIONAL CONFERENCE GRAZ 2015 – POLYMER PROCESSING SOCIETY PPS: Conference Papers. Author(s), 2016. http://dx.doi.org/10.1063/1.4965586.

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Michel Hau, Jean Baptiste X., and Baltus Cornelius Bonse. "Recycled polycarbonate as impact modifier in polypropylene." In PROCEEDINGS OF THE EUROPE/AFRICA CONFERENCE DRESDEN 2017 – POLYMER PROCESSING SOCIETY PPS. Author(s), 2019. http://dx.doi.org/10.1063/1.5084814.

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ROUHI, MOHAMMAD, JOHAN LANDBERG, WOODROW WIEST, KAROLINE TEIGLAND, and ROBIN TEIGLAND. "LARGE SCALE ADDITIVE MANUFACTURING OF RECYCLED POLYMER COMPOSITES." In Proceedings for the American Society for Composites-Thirty Eighth Technical Conference. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/asc38/36716.

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The production of large-scale products is currently undergoing a considerable shift in the manufacturing sector in favor of additive manufacturing (AM). Complex structures and elaborate designs that were previously impossible to produce using conventional manufacturing techniques are now possible thanks to the usage of additive printing technology. At the same time, using recycled materials in the production process has also risen to the top of the industry’s priority list as a result of a growing focus on sustainability. In this context, the use of recycled polymer composites in large-scale additive manufacturing (LSAM) is beginning to attract attention from both industry and research. Indeed, recycled polymer composites offer several benefits, including not only lower costs but also significantly reduced environmental impact and improved mechanical properties compared to virgin polymer materials. However, several challenges are still associated with using recycled materials in AM, including issues with material properties and compatibility with the AM process. Perhaps the most difficult polymer for AM is nylon where different grades pose different printing properties and challenges, thus printing large-scale objects in recycled nylon is a challenge that few have taken on.

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Scarfato, P., L. Di Maio, M. R. Milana, R. Feliciani, M. Denaro, and L. Incarnato. "Functional barrier in two-layer recycled PP films for food packaging applications." In TIMES OF POLYMERS (TOP) AND COMPOSITES 2014: Proceedings of the 7th International Conference on Times of Polymers (TOP) and Composites. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4876889.

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Звіти організацій з теми "Polymère recyclé"

Simmons, Kevin, Lelia Cosimbescu, Jinwen Zhang, Daniel Merkel, and Wenbin Kuang. Polymer and Composite Recycle and Upcycling. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1989485.

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LAGERRAAEN, P. R., and P. D. KALB. USE OF RECYCLED POLYMERS FOR ENCAPSULATION OF RADIOACTIVE, HAZARDOUS AND MIXED WASTES. Office of Scientific and Technical Information (OSTI), November 1997. http://dx.doi.org/10.2172/759000.

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Bajric, Sendin. Developing Characterization Procedures for Qualifying both Novel Selective Laser Sintering Polymer Powders and Recycled Powders. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1392825.

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RP-1 Polymer Identification System : Recycler of Plastics. Purdue University, 2007. http://dx.doi.org/10.5703/1288284315883.

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