Relevant bibliographies by topics / Hot melt adhesive smart adhesive

Academic literature on the topic 'Hot melt adhesive smart adhesive'

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Published: 14 March 2023

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Journal articles on the topic "Hot melt adhesive smart adhesive"

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IMAHORI, Makoto. "Hot Melt Adhesive." Journal of The Adhesion Society of Japan 42, no. 11 (2006): 471–80. http://dx.doi.org/10.11618/adhesion.42.471.

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Wu, Zijin, Yonggang Shangguan, Chunhui Zhang, and Qiang Zheng. "Effects of Crosslinking and Silicone Coupling Agent on Properties of EVA Composite Hot Melt Adhesive." Polymers 13, no. 23 (November 25, 2021): 4101. http://dx.doi.org/10.3390/polym13234101.

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In order to improve the bonding performance, EVA composite hot melt adhesives were prepared by introducing crosslinking agent and silane coupling agent in this paper. A binary EVA resin blend as the base resin with appropriate viscosity and tensile shear strength was selected as hot melt adhesive. The effects of crosslinking agent and silane coupling agent on the properties of ethylene/vinyl acetate (EVA) composite hot melt adhesive were studied. By investigating the preparation and curing conditions of hot melt adhesive and the properties of hot melt adhesive after the introduction of dicumyl peroxide (DCP), the optimum temperature and dosage of DCP and its influence on the properties were determined. It was found that the tensile shear strength of hot melt adhesive increased from 0.247 MPa to 0.726 MPa when 2 phr DCP and 5 phr KH570 were added at the same time. The tensile strength and tensile shear strength of hot melt adhesive are only slightly improved when silicone coupling agents with different functional groups are added to EVA composite hot melt adhesive. However, it was found that excessive silane coupling agent would significantly reduce the tensile strength and shear peel strength of the material.
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Muroi, Soichi, Shigetoshi Seta, Yoshio Matsumoto, Koichi Yasui, and Kazuyoshi Imamura. "4477636 Hot-melt adhesive and method." Marine Pollution Bulletin 16, no. 3 (March 1985): ii—iii. http://dx.doi.org/10.1016/0025-326x(85)90548-x.

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Kuo, Chung-Feng Jeffrey, Wei Lun Lan, Jui-Wen Wang, John-Ber Chen, and Pin-Hua Lin. "Hot-melt pressure-sensitive adhesive for seamless bonding of nylon fabric Part II: Process parameter optimization for seamless bonding of nylon fabric." Textile Research Journal 89, no. 12 (July 31, 2018): 2294–304. http://dx.doi.org/10.1177/0040517518790970.

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This study develops hot melt pressure sensitive adhesives (HMPSAs) for the seamless bonding of nylon fabric, using butyl acrylate as the main monomer material and mixing the functional monomer for polymerization. It is combined with 2-10phr diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide for the photoinitiator and ultraviolet irradiation is used to make a pre-polymer. The effects of butyl acrylate content, type of functional monomer, and 2-10phr diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide content on the molecular weight of acrylate pre-polymer are discussed, following the Taguchi method. The pre-polymer is then mixed with the reactive diluent glycidyl methacrylate blend and with 2-10phr diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide, coated on a release film, irradiated by ultraviolet light, and cured into hot melt pressure sensitive adhesives. The adhesive properties of hot melt pressure sensitive adhesive bonding on nylon include the peel strength, the shear strength, adhesive warpage, adhesive color difference, and adhesive overflow, which are discussed following the Taguchi method and the elimination and choice translating reality method for multi-quality analysis. Hot melt pressure sensitive adhesives are implemented by optimization parameters for practical validation. The results show that the peel strength of hot melt pressure sensitive adhesives is 1.495 kg/cm, the shear strength of hot melt pressure sensitive adhesives is 14.326 kg/cm2, adhesive warpage is 0.93 mm, adhesive color difference is 1.66, and adhesive overflow is 0.97 mm. The performance of HMPSAs in this study is enhanced effective.
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G. KADAM, PRAVIN, and SHASHANK T. MHASKE. "Effect of Nylon-6 Concentration on the Properties of Hot Melt Adhesive Synthesized using Dimer Acid and Ethylenediamine." Material Science Research India 9, no. 2 (December 25, 2012): 215. http://dx.doi.org/10.13005/msri/090206.

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Hot melt adhesive synthesized using polymerized fatty acid (PFA) (composition: ~1% trilinoleic acid, ~97% dilinoleic acid and ~2% linoleic acid) and ethylenediamine was blended with nylon-6, in-situ during the synthesis process to improve its performance properties. Nylon-6 was added in concentrations as 5, 10, 15 and 20 phr in the hot melt adhesive. The prepared blends were characterized for thermal (melting temperature, crystallization temperature, enthalpy of melting and enthalpy of crystallization), mechanical (tensile strength, tensile modulus, stiffness, percentage elongation at break and hardness), adhesion (lap shear strength and T-peel strength) and rheological properties. It was found that the viscosity, tensile strength, tensile modulus, stiffness, hardness, melting temperature, enthalpy of melting, crystallization temperature and enthalpy of crystallization increased with increase in concentration of nylon-6 in the hot melt adhesive. But lap shear strength and T-peel strength increased up to 10 phr concentration of nylon-6 above which both started decreasing. Percentage elongation at break decreased with increase in concentration of nylon-6 in the hot melt adhesive. Hot melt adhesive molecules must have oriented themselves about nylon-6, increasing its crystallinity, and thus the strength of the adhesive.
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Hwang, Sung Oh, and Soo Hyang Lee. "Management of a High-Pressure Hot-Melt Adhesive Injection Injury." Journal of Wound Management and Research 16, no. 1 (February 29, 2020): 59–63. http://dx.doi.org/10.22467/jwmr.2019.00976.

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We present a case wherein hot-melt adhesive was injected into the finger using a high-pressure industrial glue gun. Unlike hot-melt adhesive contact burns, hot-melt adhesive is hard to remove when it is injected with a high-pressure glue gun, resulting in more severe injury. In our case, initial treatment was not adequate because the patient did not mention any unusual symptoms and the lesion itself did not show any unusual findings. Moreover, because of the absence of symptoms like pain, the patient attended an outpatient visit later than on the scheduled date. As a result, skin necrosis occurred. Surgery was performed to excise the necrotic tissue and remove hot-melt adhesive foreign bodies. One month after the surgery, the wound had completely healed without any complications. The aim of this case report is to highlight the damage associated with high-pressure hot-melt adhesive injection injury, which we believe is not sufficiently perceived by the naked eye. The characteristics of the injected material must be identified at first. And immediate surgical intervention is needed.
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Stoyanov, O. V., R. M. Khuzakhanov, Ya V. Kapitskaya, E. R. Mukhamedzyanova, R. Ya Deberdeev, and S. N. Rusanova. "Hot-melt adhesive for shrinkable polyethylene collars." Polymer Science. Series D 1, no. 3 (July 2008): 171–74. http://dx.doi.org/10.1134/s1995421208030088.

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Nevrekar, N. B., G. A. Naik, and K. A. Joshi. "A hot melt adhesive from polyester waste." Journal of Adhesion Science and Technology 1, no. 1 (January 1987): 201–7. http://dx.doi.org/10.1163/156856187x00210.

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Paul, C. W. "Hot-Melt Adhesives." MRS Bulletin 28, no. 6 (June 2003): 440–44. http://dx.doi.org/10.1557/mrs2003.125.

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AbstractHot-melt adhesives facilitate fast production processes because the adhesives set simply by cooling. Formulations contain polymers to provide strength and hot tack (resistance to separation while adhesive is hot), and tackifiers and/or oils to dilute the polymer entanglement network, adjust the glass-transition temperature, lower the viscosity, and improve wet-out (molecular contact of the adhesive with the substrate over the entire bonding area). Some adhesives also contain waxes to speed setting, lower viscosity, and improve heat resistance. Obtaining adequate strength and heat resistance from nonreactive hot melts requires that some component of the hot melt separate out into a dispersed but interconnected hard-phase network upon cooling. The hard phases are commonly either glassy styrene domains (for adhesives based on styrenic block copolymers) or organic crystallites (for adhesives based on waxes, olefinic copolymers, or ethylene copolymers). This article will describe first the material properties relevant to the processing and performance of hot-melt adhesives, then the chemistry and function of the specific raw materials used in hot melts, and will conclude with illustrative application examples and corresponding formulations.
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Joža, Ana V., Dragan Z. Stupar, Jovan S. Bajić, Bojan M. Dakić, Zoran Mijatović, Miloš P. Slankamenac, and Miloš B. Živanov. "An End-Type Fiber-Optic UV Sensor Covered with Mixture of Two UV Sensitive Materials." Key Engineering Materials 543 (March 2013): 265–68. http://dx.doi.org/10.4028/www.scientific.net/kem.543.265.

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An end-type fiber-optic UV sensor based on the principle of fluorescence is proposed and demonstrated. The sensor is made of large-core plastic optical fiber with one end covered with mixture of hot melt adhesive and small amount of chlorophyll. As sources of ultraviolet radiation solar simulator and UV lamp are used. Spectra on the sensor output are measured with spectrometer and compared for different UV light sources. Both hot melt adhesive and chlorophyll reacted to UV radiation. The peaks of fluorescent emission are obtained in visible spectrum in range of blue wavelengths (for hot melt adhesive) and in range of red wavelengths (for chlorophyll), which makes this sensor configuration a good solution for signal multiplexing.
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Dissertations / Theses on the topic "Hot melt adhesive smart adhesive"

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KORICHO, ERMIAS GEBREKIDAN. "Implementation of Composites and Plastics Materials for Vehicle Lightweight." Doctoral thesis, Politecnico di Torino, 2012. http://hdl.handle.net/11583/2497432.

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Due to ever more severe environmental regulations, safety standards and rise of fuel cost, design of lightweight vehicle is becoming a challenging task in automotive industry. For these reasons, multidisciplinary design approaches are becoming mandatory that takes into account all parties’ interests. The thesis addresses the potential use of composites, nanomodified composites, thermoplastic and smart hot melts adhesives materials in selected automotive applications to achieve lightweight vehicle. Special attention was paid to specific parts of vehicle structures that are directly related to occupant and pedestrian safety concerns such as B-pillar, frontal bumper subsystem, and engine subframe. Two approaches were implemented to design composites and thermoplastic intensive vehicle components: experimental test and numerical simulation approaches. In experimental approach, experimental method was developed to establish reliable test procedure to characterize composite materials. Then, selected materials were manufactured and characterized under quasi-static and dynamic loading conditions. Furthermore, selected nano-modified composite materials were characterized to understand effect of presence of nano-clays into the matrix on the mechanical behavior of base material. On the other hand, thermoplastic material was modified with short glass fibers to improve its mechanical behavior for frontal vehicle system application. Besides, in this thesis adhesive joint was considered as alternative solution to achieve vehicle lightweight targets. Detailed material characterization and parametric study of hot melt adhesive (HMA) single lap joint were performed for bumper subsystem application. Accelerated ageing were also performed on selected HMA to represent the worst environmental condition in which the bumper subsystem could be exposed. Also, selected hot-melt adhesive was modified by nano-metal particles to obtain smart adhesive that allows bonded vehicle components to be easily detached during disassembly process. Particularly, simplified form of composite B-pillar (T-joint) was manufactured and quasi- static experimental tests were performed to validate the results obtained from numerical simulations. In numerical approach, composite and thermoplastic vehicle components were modeled, they are presented in chapters from seven to nine. Commercially available software have been used for these simulations. Structural analysis and optimizations were performed to obtain a competitive performance in terms of strength, stiffness and crash worthiness against conventional material solutions. The results found from experimental and numerical simulation works revealed that composites and thermoplastics materials can deliver better performances under static and crashing load conditions. Using those materials, considerable amount of vehicle weight reduction was also achieved by keeping the desired design performance criteria. It is also worth to underline that manufacturing process and joining techniques are some of the main factors that should be taken into consideration during design of composite and thermoplastic components for vehicle applications.
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Nasr, M., H. Karandikar, R. T. A. Abdel-Aziz, N. Moftah, and Anant R. Paradkar. "Novel nicotinamide skin-adhesive hot melt extrudates for treatment of acne." Taylor and Francis, 2018. http://hdl.handle.net/10454/16734.

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No
Hot melt extrusion is a continuous process with wide industrial applicability. Till current date, there have been no reports on the formulation of extrudates for topical treatment of dermatological diseases. The aim of the present work was to prepare and characterize medicated hot melt extrudates based on Soluplus polymer and nicotinamide, and to explore their applicability in acne treatment. The extrudates were characterized using DSC, FTIR, XRD, and DVS. The extrudates were also tested for their skin adhesion potential, ability to deposit nicotinamide in different skin layers, and their clinical efficacy in acne patients. The 10% nicotinamide extrudates exhibited amorphous nature which was reserved during storage, with no chemical interaction between nicotinamide and Soluplus. Upon contrasting the skin adhesion and drug deposition of extrudates and nicotinamide gel, it was evident that the extrudates displayed significantly higher adhesion and drug deposition reaching 4.8 folds, 5.3 folds, and 4.3 folds more in the stratum corneum, epidermis and dermis, respectively. Furthermore, the extrudates significantly reduced the total number of acne lesions in patients by 61.3% compared to 42.14% with the nicotinamide gel. Soluplus extrudates are promising topical drug delivery means for the treatment of dermatological diseases.
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Korin, Christer. "Mechanical Behaviour of Adhesive Joints in Cartonboard for Packaging." Doctoral thesis, Karlstads universitet, Avdelningen för kemiteknik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-4731.

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A cartonboard package is often sealed and closed with an adhesive – either a hot-melt adhesive (adhesives that are applied in a molten state on the cartonboard) or a dispersion adhesive (adhesives that are applied as water-based dispersions). This thesis focuses on the process of hot-melt gluing, and how material properties and process conditions affect the performance of the adhesive joint. Requirements vary depending on how the package is to be used. A package that is only supposed to protect the product during transport differs from one that is supposed to attract consumers and facilitate their use of the product. If a package has been opened, due to external or internal forces that cause a fracture in the adhesive joint, the consumer may choose another package instead. A fracture of the adhesive joint may occur in several different ways; for example, a cohesive fracture in the adhesive, an interfacial fracture between the adhesive and one of the cartonboard surfaces, and a cohesive fracture in the cartonboard. The traditional way of testing the adhesive joint is to subjectively evaluate the fibre tear after manually tearing the joint apart. The primary interest of this study has been to find an objective method that can characterise the adhesive joint – that is, its strength and joint characteristics. The work has principally concentrated on physical experiments where the Y-peel method has been evaluated and further developed, including the construction of a laboratory adhesive applicator. Adhesive joint failure is analysed and correlated to the force-elongation curve during Y-peel testing in order to explore various mechanisms of the failure. The force versus elongation curves are transformed into a force versus inelastic deformation curve for the adhesive joint. The inelastic deformation of the adhesive joint is defined as the inelastic opening of the adhesive joint perpendicular to the cartonboard surface. The dissipative descending energy has been used to characterise the adhesive joint. High descending dissipative energy showed high resistance against final failure of the joint. This correlates very well with the manual fibre-tear test. Characteristic force-elongation curves in Y-peel testing – that is, the shape of the curve – have been analysed, and four main failure modes have been identified. The finite element method has been used to predict mechanical behaviour in the ascending part of the force-elongation curve. When it comes to local behaviour, a high stiffness adhesive results in bending behaviour while a low results in shearing, but on a global scale, no big difference was detected on the ascending part of the force-elongation curve. The new laboratory adhesive applicator and finite element method can be used to objectively design the interaction between the adhesive and the cartonboard for a specific application. This can be achieved by modifying the cartonboard, the adhesive or the process parameters.
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Van, Heerden Vaughn Tyronne. "A marketing strategy for SASOLWAKS in the USA hot melt adhesive industry / Vaughn Tyronne van Heerden." Thesis, North-West University, 2006. http://hdl.handle.net/10394/2513.

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Sewell, Neil Thomas. "Algorithms for multi-axis additive rapid prototyping : rapid prototyping using hot-melt adhesive deposition and computer numerical controlled machining centres." Thesis, University of Exeter, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410823.

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Kallel, Achraf. "Étude d'un procédé innovant de contre-collage d'emballages flexibles par des colles thermofusibles." Thesis, Paris, ENMP, 2015. http://www.theses.fr/2015ENMP0016/document.

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« Revoluflex » est un procédé de contre-collage de films plastiques par l'intermédiaire d'une fine couche d'adhésif thermofusible. Dans ce procédé, l'adhésif fondu est extrudé à travers une filière plate (entrefer ~ 1 mm) puis étiré dans l'air sur une très courte distance (~ 1 mm) à des taux d'étirage très importants (Dr>100) et enfin déposé sur le film plastique primaire. Une pompe à vide, placée au-dessous du film extrudé, permet de stabiliser le procédé et d'empêcher l'admission de bulles d'air entre le film primaire et l'adhésif. Un film plastique secondaire est ensuite déposé sur le film primaire pour former le film complexe. En fonction des paramètres du procédé, plusieurs défauts sont observés. Par exemple, on observe dans certaines conditions des surépaisseurs périodiques dans la couche d'adhésif qui s'apparentent à une instabilité d'étirage appelée Draw Resonance. D'autres défauts qui correspondent plutôt à des déchirures dans le film adhésif sont également observés. Ces défauts représentent un obstacle pour le développement de ce procédé innovant et donc l'enjeu de cette étude consiste à comprendre l'origine de ces défauts afin de pouvoir les supprimer ou, au moins, en différer l'apparition.Pour ce faire, ces défauts ont tout d'abord été caractérisés et leur apparition a été quantifiée en fonction des paramètres du procédé et de la rhéologie de différentes formulations d'adhésif.Des modèles de complexité croissante, tant au niveau de la description cinématique de l'écoulement que de la loi de comportement du polymère, ont été développés. Des modèles membrane Newtonien et viscoélastique à largeur constante où un différentiel de pression est appliqué entre les deux faces du film extrudé constituent une première approche théorique qui rend compte de l'effet de la pompe à vide. La méthode de stabilité linéaire a été utilisée pour prédire le phénomène d'instabilité périodique en fonction du comportement rhéologique et des paramètres du procédé. Notre étude a montré que les résultats de ces modèles membrane sont très influencés par les conditions initiales de l'écoulement. Comme l'hypothèse membrane n'est plus valide à de très courtes distances d'étirage, nous avons développé deux modèles 2D Newtonien qui rendent compte à la fois de l'écoulement dans la filière et au cours de l'étirage. Le premier modèle symétrique ne prend pas en compte l'effet de la pompe à vide mais et a été résolu avec deux approches différentes : une méthode de suivi d'interface couplée à la méthode de stabilité linéaire et une méthode de simulation directe par capture d'interface (méthode Level-Set). Nous avons montré que ces deux méthodes permettent d'obtenir la même solution stationnaire et les mêmes résultats de stabilité. Le deuxième modèle prend en compte le différentiel de pression et a été résolu uniquement par la technique de suivi d'interface couplée à la méthode de stabilité linéaire. Ce modèle 2D permet également de trancher entre les différentes conditions initiales testées avec le modèle membrane.Ces modèles permettent d'expliquer plusieurs phénomènes observés expérimentalement comme l'effet stabilisant du différentiel de pression et de la courte distance d'étirage. De plus, ils mettent en évidence un résultat paradoxal qui est l'effet stabilisant du taux d'étirage dans certaines conditions opératoires. Ils montrent enfin que le différentiel de pression provoque une contrainte très élevée au niveau de la lèvre inférieure de la filière, ce qui peut être une explication des déchirures observés dans la couche de colle
“Revoluflex” is an innovative laminating process consisting in bonding two plastic films with a thin layer of hot melt adhesive. The molten adhesive is extruded through a flat die (gap ~ 1 mm). Then, it is stretched into the air at very high draw ratio (Dr> 100) over a very short distance (~ 1 mm) and set down on the primary plastic film. A vacuum pump, located beneath the extruded film, stabilizes the process and prevents air bubble intake between the primary and the adhesive film. A secondary plastic film is then laid on the coated primary film to give a laminate. Many defects can be observed as a function of the process parameters such as wavelike instabilities characterized by periodical sustained oscillations in the hot melt adhesive layer. This instability is similar to the “Draw Resonance” instability encountered with classical processes involving the stretching of a molten polymer. Other defects looking like small bubbles, cracks or rips in the adhesive layer are also observed. These defects hinder commercial deployment of the process. The aim of this study is there to understand their origins in order to remove them or at least delay their onset.These defects have first been characterized and their appearance was quantified according to process parameters and adhesive rheology. Several theoretical models of increasing complexity, in terms of flow kinematics and polymer rheology, have been developed. Newtonian and Viscoelastic constant width membrane models involving a pressure differential between the two sides of the extruded film represent a first theoretical approach that accounts for the vacuum pump effect. The linear stability method was used to investigate the influence of adhesive rheological behavior and process parameters on the onset of periodic instabilities. It was shown that the results were highly dependent on the initial flow conditions at die exit. Since the membrane assumption is not valid for very short stretching distances, we developed two Newtonian 2D models accounting for both extrusion and drawing steps. The first one is a symmetric model that does not account for the vacuum pump effect. It was solved using two different approaches: a front-tracking method coupled with linear stability analysis and a direct numerical simulation with interface capturing method (Level set method). It was shown that both methods lead to the same stationary solution and the same stability results. The second model accounts for the pressure differential and it was solved using only the front-tracking method. This latter 2D model enables to check the validity of the initial flow conditions of the membrane model.These models allow us to explain several experimental phenomena such as the stabilizing effect of the pressure differential and the short stretching distance. In addition, they help explaining experimental features which contradict the classical literature on drawing instabilities such as the stabilizing effect of increasing the draw ratio under certain operating conditions. Finally, they show that the pressure differential induces a high stress at the bottom lip of the extrusion die, which may clarify the cracks and rips observed in the adhesive layer
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Kruppke, Iris, Rolf-Dieter Hund, and Chokri Cherif. "Adhesion problematics and curing kinetics in a thermosetting matrix for stitch-free non-crimp fabric." Sage, 2016. https://tud.qucosa.de/id/qucosa%3A35420.

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Non-crimp fabrics (NCF) have become established in the fields of the automotive, aircraft, and wind power industries, which has led to an increasing demand of fiber plastic composites. In order to utilize the known excellent load-bearing properties of NCF and also to reduce the related disadvantages such as fiber undulation caused by stitching yarn, inclusions of resin and filament breakage by the stitch-bonding process have to be addressed. Hence, an alternative manufacturing technology is presented. This technology is defined by the punctiform application of a polyester hot melt adhesive to enable different geometries of NCF and ensure the position of the high-performance fiber in the load direction. The new manufacturing process, on the one hand, demands new testing methods to investigate the adhesion between the used adhesive and highperformance fibers, while, on the other, the surface of the adherend (carbon fiber) needs to be improved. Oxyfluorination is used here for the surface modification. Different tests such as peel test, shear test and transverse tensile test were developed and evaluated with different adhesives and high-performance yarns based on glass and carbon. The influence of the used copolyester hot melt on the curing kinetics of an epoxy matrix was investigated by differential scanning calorimetry using quasi-isothermal and non-isothermal measurements. In addition, the interface between the thermoplastic epoxy resin and the copolyester hot melt was analyzed by scanning electron microscopy.
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Wong, Yue-Sin, and 翁悅馨. "The study of characteristics on fast adhesive of reactive polyurethane hot melt adhesive." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/53134073464586152852.

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碩士
國立勤益科技大學
化工與材料工程系
103
Polyurethane reactive hot melt adhesives (PUR) are isocyanate-capped prepolymers prepared from polyester and or polyether glycols and diisocyanates. After application, PUR exhibit green strength by solidification while cooling to room temperature. PUR are NCO-terminated, therefore they will cure in the presence of moisture, generating a highly crosslinked network. The content of NCO was studied of curing speed, adhesion viscosity, tensile strength and bonding strength. By using Fourier transform infrared spectroscopy (FTIR), the distributions of hydrogen bonds in these PUR were characterized. The results showed that the PUR had a high degree of micro phase separation, and a high degree of hydrogen bonding. Adhesive properties test showed that the initial adhesive strength and crystallization properties were excellent in the presence of the low content of hard segments. PUR prepolymer with higher crystal content showed better green strength but slower adhesion development as a result of hindrance to moisture diffusion by the crystalline structure. With mixed two isocyanate and adding a catalyst to improve the cure rate and rheological properties of PUR. The fast adhesive including A4, A8, MD3, NHM3 and NHM3A4. As a result in lap shear strength test, the MD3, NHM3 and NHM3A4 at 0.5hr have a higher green strength and more than 1.6 kgf/cm2 with rubber substrate. And in the final cured strength, the MD3 is 60.25 kgf/cm2 with PC substrate and the adhesion failure modes belong to substrate failure. These fast adhesives with rubber substrate are substrate failure in final cured strength.
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Chiang, Chun-wu, and 蔣俊武. "The Preparation and Physical Properties of Polyurethane Hot Melt Adhesive." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/27180525485870047786.

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碩士
逢甲大學
紡織工程所
95
This study presents the preparation and physical properties of Polyurethane Hot Melt Adhesive（PUHMA）based on polybutylenes adipate （PBA）as soft segment, isophorone diisocyanate （IPDI） as hard segment, 1,4-butane diol（1,4-BD）as chain extender and dibutyltin dilaurate （DBTDL） as catalyst. The polymerization was proceeded without adding any solvents in a two-pots process. . The morphology of the PUHMA were studied by X-ray and FT-IR spectrum. The thermal properties of the PUHMA were evaluated by TGA and DSC spectrum. The molecular weight and molecular weight distributions of the PUHMA were measured by GPC analysis. The T-peel tests of the PUHMA were measured by Instron strength tester. The adhesive propertied of the PUHMA laminated fabric were measured by T-peel strength tester. . The FT-IR graph of the PUHMA showed that the main peak of －NCO group disappeared in the wavelength of 2200 cm-1, which revealed a successful polymerization in preparing PUHMA. From the X-ray diffraction spectral analysis of the PUHMA, the graph showed two peaks at 21.3° and 24° in 2θ-axis, which corresponds to the (110) and (020) diffractions, respectively. The crystallinity of the PUHMA was increased as the hard segments ratio raised. Thermal properties of the PUHMA were increased to Tg as the hard segment increased. Melting point （Tm） and melting enthalpy of the PUHMA were in propertional to the molecular weight. The enhencement of hard segments of the PUHMA attributed to a small and narrow distribution of molecular weight. For the T-peel test of the PUHMA, it revealed a maximal adhesive strength correspond to the curing time. Consequently, the optimal adhesive strength was achieved if the molecular weight ratio of IPDI╱PBA╱1,4-BD was 1.0：0.8：0.2 （NCO╱OH＝1）. The similar result was also obtained in the curing time of 72 hr.
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WU, PEI-YING, and 吳沛盈. "Patent Analysis of Low Melting Point Polyamide Of Hot Melt Adhesive." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3j53a9.

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碩士
國立臺北科技大學
分子科學與工程系有機高分子碩士班
107
Polyamide, also known as nylon, was originally an important synthetic fiber raw mate-rial before it developed into engineering plastics. It is also the earliest engineering plastics. It has unique wear resistance, good friction coefficient, and excellent heat and impact re-sistance. It is widely used in textiles, shoe materials, automotive and aerospace parts, and industrial materials. This research uses the patent hierarchy search method to retrieve the technical charac-teristics of low melting point polyamines hot melt adhesive, and then analyzes the synthesis technology of low melting point polyamines hot melt adhesive materials by using the pa-tented power matrix analysis. Specifically, the research of this study The purpose is to hope that the industry will further improve the current status and trends of low melting point pol-yamines hot melt adhesive materials through patent analysis, and as a follow-up technology research and development, innovation or avoidance of design data sources, to break through patent barriers, create technological innovation, and then enhance Industrial competitive-ness.
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Book chapters on the topic "Hot melt adhesive smart adhesive"

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Gooch, Jan W. "Adhesive, Hot Melt." In Encyclopedic Dictionary of Polymers, 20. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_267.

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Gooch, Jan W. "Hot-Melt Adhesive." In Encyclopedic Dictionary of Polymers, 371. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_6045.

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Zhang, Mingming, Jianxin Du, and Jianwei Hao. "Study of Intumescent Flame Retardant Copolyester Hot Melt Adhesive." In ACS Symposium Series, 183–91. Washington, DC: American Chemical Society, 2012. http://dx.doi.org/10.1021/bk-2012-1118.ch013.

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Wang, Xinting, Guorong Cao, Dongli Li, and Meiqi Yang. "Effects of Several Surfactants on Surface Tension of PVA Hot-Melt Adhesive Tape." In Lecture Notes in Electrical Engineering, 841–46. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7629-9_104.

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"Hot-melt adhesive." In Encyclopedic Dictionary of Polymers, 500–501. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_5951.

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"Adhesive, hot melt." In Encyclopedic Dictionary of Polymers, 28. New York, NY: Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-30160-0_256.

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"hot-melt adhesive." In The Fairchild Books Dictionary of Textiles. Fairchild Books, 2021. http://dx.doi.org/10.5040/9781501365072.7805.

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Pizzi, A. "Hot-Melt Adhesives." In Handbook of Adhesive Technology, Revised and Expanded. CRC Press, 2003. http://dx.doi.org/10.1201/9780203912225.ch37.

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M. Sridhar, Laxmisha, Andrew T. Slark, and James A. Wilson. "Furan Functionalized Polyesters and Polyurethanes for Thermally Reversible Reactive Hotmelt Adhesives." In Furans and Furan Derivatives - Recent Advances and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100426.

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New reactive hotmelt (RHM) adhesives based on thermally reversible Diels-Alder networks comprising multifunctional furan and maleimide prepolymers are described. The prepolymer mixture is easy to apply in the bulk from the melt and after application to the substrates, the adhesive undergoes polymerization at room temperature resulting in crosslinked bonds. Due to their thermoplastic nature and low melt viscosity at hot melt application temperatures, the adhesives provide processing properties similar to moisture cured polyurethanes (PUR). The technology is isocyanate-free and does not require moisture to initiate the crosslinking. Bonding and tensile properties of the RHM adhesive can be readily tuned by prepolymer design and provide cure rates similar to PUR adhesives. The Diels-Alder adhesives provide versatile adhesion to a variety of substrates and good creep resistance up to the retro temperature. The adhesives show good thermal stability during application and can be recycled multiple times by simple heating/cooling of the bonds providing similar performance. Several furan and maleimide prepolymers were scaled up to multi-Kg quantities to demonstrate the potential for industrial scalability. The results demonstrate that furan-maleimide reversible chemistry can be used for RHM application as a more sustainable alternative to conventional moisture curing PURs which tend to contain harmful residual isocyanate monomers.
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Conference papers on the topic "Hot melt adhesive smart adhesive"

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Huo, Ning-bo, Hong-xia Li, and Xiao-jing Jia. "Data Analysis on Adhesive Property Testing Methods of Hot-melt Pressure-sensitive Adhesive with Styrene Thermoplastic Elastomer." In 2017 International Conference on Computational Science and Engineering(ICCSE 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/iccse-17.2017.13.

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Huo, Ning-bo, and Chun-hai Zhao. "Study on Anti-Hygrothermal Aging Properties of TPS Hot-melt Adhesive." In 2016 6th International Conference on Applied Science, Engineering and Technology. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icaset-16.2016.55.

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Hughes, Josie, and Fumiya Iida. "Tack and deformation based sensorised gripping using conductive hot melt adhesive." In 2018 IEEE International Conference on Soft Robotics (RoboSoft). IEEE, 2018. http://dx.doi.org/10.1109/robosoft.2018.8405384.

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Ciardiello, Raffaele, Andrea Tridello, Luca Goglio, and Giovanni Belingardi. "Experimental Assessment of the Dynamic Behavior of Polyolefin Thermoplastic Hot Melt Adhesive." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84725.

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In the last decades, the use of adhesives has rapidly increased in many industrial fields. Adhesive joints are often preferred to traditional fasteners due to the many advantages that they offer. For instance, adhesive joints show a better stress distribution compared to the traditional fasteners and high mechanical properties under different loading conditions. Furthermore, they are usually preferred for joining components made of different materials. A wide variety of adhesives is currently available: thermoset adhesives are generally employed for structural joints but recently there has been a significant increment in the use of thermoplastic adhesives, in particular of the hot-melt adhesives (HMAs). HMAs permit to bond a large number of materials, including metal and plastics (e.g., polypropylene, PP), which can be hardly bonded with traditional adhesives. Furthermore, HMAs are characterized by a short open time and, therefore, permit for a quick and easy assembly process since they can be easily spread on the adherend surfaces by means of a hot-melt gun and they offer the opportunity of an ease disassembling process for repair and recycle. For all these reasons, HMAs are employed in many industrial applications and are currently used also for bonding polypropylene and polyolefin piping systems. In the present paper, the dynamic response of single lap joints (SLJ) obtained by bonding together with a polyolefin HMA two polypropylene substrates was experimentally assessed. Quasi-static tests and dynamic tests were carried out to investigate the strain rate effect: dynamic tests were carried out with a modified instrumented impact pendulum. Relevant changes in the joint performance have been put in evidence. Failure modes were finally analysed and compared. A change in the failure mode is experimentally found: in quasi-static tests SLJ failed due to a cohesive failure of the adhesive, whereas in dynamic tests the SLJ failed due to an interfacial failure, with a low energy absorption.
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Obata, S., T. Sekine, and H. Tomita. "Hot-melt adhesive method using metal foil induction heating and performance of long E-type core head." In 2005 IEEE 11th European Conference on Power Electronics and Applications. IEEE, 2005. http://dx.doi.org/10.1109/epe.2005.219366.

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Brunella, Valentina, Giulia Spezzati, Ermias Gebrekidan Koricho, Giovanni Belingardi, Brunetto Martorana, Fabrice Bondji Ngabang, and Marco Simioli. "Novel Use of Electromagnetic-Sensitive Nano-Additives to Develop Reversible Hot-Melt Adhesives." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84913.

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The paper describes the use of electromagnetic-sensitive nano-particle additive for developing a reversible hot-melt adhesive for structural applications. A prototype of a lower tail gate has been manufactured by means of this innovative technology to demonstrate the potential for joining plastic components in automotive and aerospace applications. Monitoring of nanoparticles release during preparation of modified adhesives shows very low environmental impact if the mixing process is performed under a fume hood. The innovative electromagnetic bonding process can provide to the manufacturing industry new opportunities in terms of simplification of productive lay-out, more flexible design and process rapidity, in addition to significant economic benefit. The reversibility of the process would also increase the chances for part reuse and/or recycling that would otherwise be discarded.
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Ruzafa-Silvestre, Carlos, Pilar Carbonell-Blasco, Elena Orgiles-Calpena, and Francisca Aran Ais. "Low-pressure plasma treatment applied to polymeric materials for a sustainable footwear industry." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.iv.19.

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In this paper INESCOP proposes the improvement of the bonding of footwear soling materials using the low-pressure plasma surface treatment as a non-polluting and resource-efficient technology by means of adhesive bonds, with a reactive hot melt polyurethane adhesive, as a more sustainable alternative to current chemical surface treatments such as halogenation. More precisely, low-pressure plasma is capable of cleaning and removing all impurities, such as oxides, oils and fats on material surface. Then, it is activated by producing new chemicals species on the top layer of the substrate. Thus, the materials’ surface acquires new surface functionalities, improving the compatibility adhesive-substrate and, therefore their adhesion properties. Furthermore, in this work the surface modifications produced in these materials of different polymeric nature have been optimised to increase their roughness, wettability, adhesive properties, etc., and have been validated through various experimental characterisation techniques. As a result, the samples treated with plasma meet the adhesion requirements for footwear materials. As a result, low-pressure plasma treatment has desmonstrated to be a green, alternative, and sustainable technology in line with European policies on circular economy, which enhances material surface properties by improving the adhesion bonding process.
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Niutta, Carlo Boursier, Raffaele Ciardiello, Giovanni Belingardi, and Alessandro Scattina. "Experimental and Numerical Analysis of a Pristine and a Nano-Modified Thermoplastic Adhesive." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84728.

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In this work, the mechanical properties of two different adhesives compositions have been investigated both experimentally and numerically. The studied thermoplastic adhesives are Hot-Melt Adhesive (HMA). In particular, a pristine and a nanomodified adhesive with 10% in weight of iron oxide have been considered. The adhesives have been subjected to a series of single lap joint (SLJ) tests using adherends made of polypropylene copolymer. As it is well-known, the structural-mechanical behavior of adhesive joints is mostly influenced by the bonding process: thickness of adhesive as well as its application procedures and the surface preparation of adherends are among the most influencing factors. In addition, the mechanical behavior of SLJ test is particularly influenced by the correct alignment of adherends and applied load. These aspects have been investigated, analyzing the experimental results. Moreover, the experimental results have been used to develop a numerical model of the two adhesives. The numerical analysis has been carried out using the commercial software LS-DYNA. Transient nonlinear finite element analysis has been performed to simulate the mechanical behavior of the thermoplastic adhesives. In particular, the cohesive formulations of the elements have been taken into consideration after a careful literature review. In order to set-up and to validate the mechanical properties of the adhesives, the experimental SLJ tests have been simulated. The developed finite element models enable to investigate more complex joint structures where these types of adhesives are used, such as plastic piping systems and automotive applications. Further, the numerical models allow to investigate with higher accuracy and lower time different aspects such as manufacturing and non-linear effects.
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Rajamäki, E., M. Leino, P. Vuoristo, P. Järvelä, and T. Mäntylä. "Effect of Powder Properties such as Particle Size, Density and Melt Flow Rate on the Properties of Flame Sprayed PE Coating." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p0281.

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Abstract Three different types of polyethylene powders were flame sprayed onto pre-heated steel substrate previously coated by electrostatic spray system with a thin epoxy primer layer. Properties of the polyethylene (PE) powders, including powder density, particle size and melt flow rate (MFR) were measured in order to study their influence on the mechanical properties of the coating. The spray experiments started with optimization of spraying parameters. The main variables were pre-heating temperature of the substrate, temperature increase during spraying (influenced by the spraying distance), and thickness of the PE coatings. The laboratory tests performed for the coatings were coating characterization by microscopy and mechanical testing. Porosity and thickness of the coatings were determined by optical and stereo microscopy studies from polished cross-sectional samples. Hardness, impact strength, peel strength, and adhesive strength of the coatings were also investigated. Also some hot water sinking and heat cycling tests were performed. As a result from the present studies it can be concluded that powder properties have great influence on the mechanical properties of the final coating.
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