Literatura académica sobre el tema "Intumescent polypropylene"
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Artículos de revistas sobre el tema "Intumescent polypropylene"
Depeng, Li, Li Chixiang, Jiang Xiulei, Liu Tao y Zhao Ling. "Synergistic effects of intumescent flame retardant and nano-CaCO3 on foamability and flame-retardant property of polypropylene composites foams". Journal of Cellular Plastics 54, n.º 3 (12 de julio de 2017): 615–31. http://dx.doi.org/10.1177/0021955x17720157.
Texto completoBourbigot, S., M. Le Bras y R. Delobel. "Fire Degradation of an Intumescent Flame Retardant Polypropylene Using the Cone Calorimeter". Journal of Fire Sciences 13, n.º 1 (enero de 1995): 3–22. http://dx.doi.org/10.1177/073490419501300101.
Texto completoAlmeras, X., M. Le Bras, S. Bourbigot, P. Hornsby, G. Marosi, P. Anna y F. Poutch. "Intumescent PP Blends". Polymers and Polymer Composites 11, n.º 8 (noviembre de 2003): 691–702. http://dx.doi.org/10.1177/096739110301100808.
Texto completoZhou, Ying, Weidi He, Yifan Wu, Dinghong Xu, Xiaolang Chen, Min He y Jianbing Guo. "Influence of thermo-oxidative aging on flame retardancy, thermal stability, and mechanical properties of long glass fiber–reinforced polypropylene composites filled with organic montmorillonite and intumescent flame retardant". Journal of Fire Sciences 37, n.º 2 (marzo de 2019): 176–89. http://dx.doi.org/10.1177/0734904119833014.
Texto completoWang, Ya Li, Xiao Ping Tang y Xu Dong Tang. "Study of Synergistic Effects of Cerium Oxide on Intumescent Flame Retardant Polypropylene System". Advanced Materials Research 887-888 (febrero de 2014): 90–93. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.90.
Texto completoLe Bras, Michel, Sophie Duquesne, Magali Fois, Michel Grisel y Franck Poutch. "Intumescent polypropylene/flax blends: a preliminary study". Polymer Degradation and Stability 88, n.º 1 (abril de 2005): 80–84. http://dx.doi.org/10.1016/j.polymdegradstab.2004.04.028.
Texto completoGuan, Ya-Hui, Wang Liao, Zhao-Zan Xu, Ming-Jun Chen, Jian-Qian Huang y Yu-Zhong Wang. "Improvement of the flame retardancy of wood-fibre/polypropylene composites with ideal mechanical properties by a novel intumescent flame retardant system". RSC Advances 5, n.º 74 (2015): 59865–73. http://dx.doi.org/10.1039/c5ra08292g.
Texto completoAtabek Savas, Lemiye, Aysenur Mutlu, Ali Sinan Dike, Umit Tayfun y Mehmet Dogan. "Effect of carbon fiber amount and length on flame retardant and mechanical properties of intumescent polypropylene composites". Journal of Composite Materials 52, n.º 4 (25 de mayo de 2017): 519–30. http://dx.doi.org/10.1177/0021998317710319.
Texto completoPeng, Chao, Shi Bin Nie, Lei Liu, Qi Lin He, Yuan Hu y Fei Gao. "Synergistic Effects of Nanoporous Nickel Phosphates VSB-1 on Intumescent Flame Retardant Polypropylene Composites". Advanced Materials Research 881-883 (enero de 2014): 863–66. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.863.
Texto completoTang, Yong, Yuan Hu, Baoguang Li, Lei Liu, Zhengzhou Wang, Zuyao Chen y Weicheng Fan. "Polypropylene/montmorillonite nanocomposites and intumescent, flame-retardant montmorillonite synergism in polypropylene nanocomposites". Journal of Polymer Science Part A: Polymer Chemistry 42, n.º 23 (2004): 6163–73. http://dx.doi.org/10.1002/pola.20432.
Texto completoTesis sobre el tema "Intumescent polypropylene"
Verret, Éric. "Optimisation des systèmes de protection incendie par machine learning : Application aux systèmes intumescents". Electronic Thesis or Diss., Centrale Lille Institut, 2024. http://www.theses.fr/2024CLIL0033.
Texto completoOptimization is a major element in materials science and is particularly important in the development of complex formulations, such as flame-retardant formulations. This PhD thesis focuses on the development of an active optimization method based on a machine learning technique called Bayesian Optimization (BO). Among the different types of flame-retardant systems, intumescent systems are of great interest and were the focus of this study. We studied two complex systems: a polypropylene (PP)-based intumescent formulation and an intumescent coating applicable to wood-type substrates. For the PP-based system, additives were added to the polymer matrix through melt blending. Optimization was carried out using two approaches: (a) a mono-objective approach aiming at optimizing only the higher heating value (HHV) obtained from the Calorimeter Bomb, and (b) a multi-objective approach aiming at optimizing both the limiting oxygen index (LOI) and the additive content in the formulation. In the case of the intumescent coating, several parameters including total heat release (THR) measured by the Calorimeter cCone in the horizontal position, and mass loss rate, measured in the vertical position using a mass Loss Calorimeter were optimized. A small-scale test to measure the Critical heat Flux at Extinction (CFE) was also used to measure flame propagation. In addition, machine-based image segmentation was applied to assess the degradation front. This study demonstrated the relevance of OB in materials science
Ouassou, Najib. "Étude d'un nouveau système intumescent "retard au feu" : pyrophosphate diammonique-pentaérythritol : application au polypropylène". Lille 1, 1991. http://www.theses.fr/1991LIL10070.
Texto completoAlistiqsa, Fathia. "Mise au point et étude de nouvelles formulations intumescentes polyphosphates d'ammonium - pentaerythritol : Application à l'ignifugation du polypropylène". Lille 1, 1993. http://www.theses.fr/1993LIL10050.
Texto completoAlmeras, Xavier. "Optimisation de la tenue au feu d'une formulation intumescente du polypropylène pour applications dans les transports terrestres". Lille 1, 2003. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2003/50376-2003-159.pdf.
Texto completoDelaval, Damien. "Développement et caractérisation de systèmes intumescents retardateurs de flamme pour polypropylènes recyclés issus des véhicules usagés". Electronic Thesis or Diss., Lille 1, 2009. http://www.theses.fr/2009LIL10015.
Texto completoThe impact of recycling and pollutants (engine oil (EO) and ethylene glycol (EG)) on the intrinsic properties of polypropylene-based materials coming from end-of-life cars was investigated. Recycling (limited here to six extrusion cycles) is not detrimental to the mechanical properties of the polymeric matrices. The crystallization kinetics study realized on the polluted polymers showed that the presence of EG delays crystallization. The degradation kinetics allowed to simulate and quantify the different degradation steps of the materials. Pollutants and recycling also lead to an improvement of the reaction to fire of our copolymer, especially in the case of EO-containing samples. The second part of the work was devoted to the study of the flame retardant properties of our materials provided by ammonium polyphosphate (APP) with or without zinc borate (ZB) (synergistic agent)). In all cases recycled and polluted materials show satisfying performances. It was found that the efficiency of the protective barrier provided by the char is governed by the rapidity of its formation and its thermal conductivity which are positively influenced by EO (with APP/ZB) and recycling (with APP) (increase of the formation rate and decrease of the conductivity). Chemical characterization of the structures formed in a fire scenario reveals the formation of a phosphocarboneous structure containing polyaromatics, pyrophosphates and phosphoric acid and when zinc borate is used, borophosphates which can reinforce the intumescent structure
Delaval, Damien. "Développement et caractérisation de systèmes intumescents retardateurs de flamme pour polypropylènes recyclés issus des véhicules usagés". Thesis, Lille 1, 2009. http://www.theses.fr/2009LIL10015/document.
Texto completoThe impact of recycling and pollutants (engine oil (EO) and ethylene glycol (EG)) on the intrinsic properties of polypropylene-based materials coming from end-of-life cars was investigated. Recycling (limited here to six extrusion cycles) is not detrimental to the mechanical properties of the polymeric matrices. The crystallization kinetics study realized on the polluted polymers showed that the presence of EG delays crystallization. The degradation kinetics allowed to simulate and quantify the different degradation steps of the materials. Pollutants and recycling also lead to an improvement of the reaction to fire of our copolymer, especially in the case of EO-containing samples. The second part of the work was devoted to the study of the flame retardant properties of our materials provided by ammonium polyphosphate (APP) with or without zinc borate (ZB) (synergistic agent)). In all cases recycled and polluted materials show satisfying performances. It was found that the efficiency of the protective barrier provided by the char is governed by the rapidity of its formation and its thermal conductivity which are positively influenced by EO (with APP/ZB) and recycling (with APP) (increase of the formation rate and decrease of the conductivity). Chemical characterization of the structures formed in a fire scenario reveals the formation of a phosphocarboneous structure containing polyaromatics, pyrophosphates and phosphoric acid and when zinc borate is used, borophosphates which can reinforce the intumescent structure
Drevelle, Christophe Delobel René Le Bras Michel. "Conception et développement de systèmes retardateurs de flamme pour fibres synthétiques". Villeneuve d'Ascq : Université des sciences et technologies de Lille, 2007. https://iris.univ-lille1.fr/dspace/handle/1908/553.
Texto completoN° d'ordre (Lille 1) : 3721. Résumé en français et en anglais. Titre provenant de la page de titre du document numérisé. Bibliogr. à la suite de chaque chapitre.
Renaut, Nicolas. "Amélioration des propriétés thermomécaniques et ignifuges du polypropylène : applications aux matériels électriques". Electronic Thesis or Diss., Lille 1, 2008. http://www.theses.fr/2008LIL10137.
Texto completoOur study deals with the processes used in order to improve the thermomechanical and fire retardant (FR) properties of polypropylene (PP) materials used in electrical equipments. The fIfst chapter concerns the improvement of the thermomechanical properties trough the development of polymer alloys. Bisphenol A polycarbonate (PC) is used as modifying polymer in the PP matrix. To improve the compatibilization of the polymer blends, two compatibilizing agents (AC) have been evaluated but the obtained properties are not sufficient and thus improvement of the properties was thus achieved using inorganic fillers. The second chapter is about the processes for imparting flame retardancy to PP materials reinforced by mineraI fillers (mica, talc or calcium carbonate). Two types of FR additives are tested: a phosphorous compound (APP: ammonium polyphosphate) used in intumescent systems and various brominated compounds. ln the case of the composite materials containing calcium carbonate, interactions between APP and fillers are evidenced and restrict the development of the protective thermally insulating structure (char) resulting in low FR properties whereas formulations with brominated compound present acceptable properties. However Br compounds present sorne environmental concerns. As a consequence, the last chapter deals with the processes that allow imparting flame retardancy to the PP composites surface. Before applying a FR protective paint, the materials are treated by low pressure radiofrequency cold plasma (O2, Ar, pure or mixture of them). By means of a global analysis of the topography, the surface chemical composition evolution and wettability, we propose sorne rearrangement mechanisms occurring at the PP matrix surface. We demonstrate that these mechanisms influence the adhesive properties of the treated materials and differ for each material as a function of the composition and nature of the fillers
Renaut, Nicolas. "Amélioration des propriétés thermomécaniques et ignifuges du polypropylène : applications aux matériels électriques". Thesis, Lille 1, 2008. http://www.theses.fr/2008LIL10137/document.
Texto completoOur study deals with the processes used in order to improve the thermomechanical and fire retardant (FR) properties of polypropylene (PP) materials used in electrical equipments. The fIfst chapter concerns the improvement of the thermomechanical properties trough the development of polymer alloys. Bisphenol A polycarbonate (PC) is used as modifying polymer in the PP matrix. To improve the compatibilization of the polymer blends, two compatibilizing agents (AC) have been evaluated but the obtained properties are not sufficient and thus improvement of the properties was thus achieved using inorganic fillers. The second chapter is about the processes for imparting flame retardancy to PP materials reinforced by mineraI fillers (mica, talc or calcium carbonate). Two types of FR additives are tested: a phosphorous compound (APP: ammonium polyphosphate) used in intumescent systems and various brominated compounds. ln the case of the composite materials containing calcium carbonate, interactions between APP and fillers are evidenced and restrict the development of the protective thermally insulating structure (char) resulting in low FR properties whereas formulations with brominated compound present acceptable properties. However Br compounds present sorne environmental concerns. As a consequence, the last chapter deals with the processes that allow imparting flame retardancy to the PP composites surface. Before applying a FR protective paint, the materials are treated by low pressure radiofrequency cold plasma (O2, Ar, pure or mixture of them). By means of a global analysis of the topography, the surface chemical composition evolution and wettability, we propose sorne rearrangement mechanisms occurring at the PP matrix surface. We demonstrate that these mechanisms influence the adhesive properties of the treated materials and differ for each material as a function of the composition and nature of the fillers
Caron, Matthieu. "Réexamen du mécanisme de l’intumescence : application au système modèle PP/APP/PER/4A". Electronic Thesis or Diss., Centrale Lille Institut, 2024. http://www.theses.fr/2024CLIL0001.
Texto completoThis work deals with the re-investigation of the thermal decomposition of a model intumescent polypropylene (PP) containing ammonium polyphosphate (APP), pentaerythritol (PER) and zeolite 4A as a synergy agent. The fire performances of PP/APP/PER/4A formulations are studied to determine the optimal mass fraction of 4A (1 wt%). The decomposition steps of PP/APP/PER/4A formulations with and without PP or 4A are determined by thermogravimetric analyses (TGA). Then, the chemical structure of the materials and the evolution of the free radicals are studied as a function of temperature by ex-situ 27Al, 29Si, 13C and 31P nuclear magnetic resonance (NMR) andelectron paramagnetic resonance (EPR) analyses respectively. Besides, ex-situ hyperfine correlation (HYSCORE) pulsed EPR analyses are done to follow the evolution of the chemical environments of free radicals in the materials in a precise and innovative way. It is showed that materials undergo a structural shift between 350 and 400 °C from a predominantly carbonaceous residue with a high concentration of free radicals to a predominantly phosphorated residue
Capítulos de libros sobre el tema "Intumescent polypropylene"
Bras, Michel Le y Serge Bourbigot. "Intumescent fire retardant polypropylene formulations". En Polymer Science and Technology Series, 357–65. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4421-6_51.
Texto completoLewin, Menachem y Makoto Endo. "Intumescent Systems for Flame Retarding of Polypropylene". En ACS Symposium Series, 91–116. Washington, DC: American Chemical Society, 1995. http://dx.doi.org/10.1021/bk-1995-0599.ch007.
Texto completoDuquesne, S., N. Renaut, P. Bardollet, C. Jama, M. Traisnel y R. Delobel. "Fire Retardancy of Polypropylene Composites Using Intumescent Coatings". En ACS Symposium Series, 192–204. Washington, DC: American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1013.ch012.
Texto completoPeng, Hua-Qiao y Yu-Zhong Wang. "Effects of Boric Acid on Flame Retardancy of Intumescent Flame-Retardant Polypropylene Systems Containing a Caged Bicyclic Phosphate". En ACS Symposium Series, 225–48. Washington, DC: American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1013.ch014.
Texto completoKan, Yongchun, Shun Zhou y Yuan Hu. "Synergistic Effects of Ni2+-Fe3+Layered Double Hydroxide on Intumescent Flame-Retarded Polypropylene Composites Containing Melamine Phosphate and Pentaerythritol Phosphate". En ACS Symposium Series, 51–68. Washington, DC: American Chemical Society, 2012. http://dx.doi.org/10.1021/bk-2012-1118.ch004.
Texto completoPark Ji-Won, Lee Jung-Hun, Choi Hee-Chun, Kim Hyun-Joong, Jang Hyun-Min y Choi Jung-Yun. "EVA/intumescent agent flame retardant composite materials using organic/inorganic hybrid filler". En Construction Materials and Structures. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-466-4-526.
Texto completoMarosi, Gy, I. Ravadits, Gy Bertalan, P. Anna, M. A. Maatoug, A. Tóth y M. D. Tran. "ROLE OF MIGRATION PROCESS IN THE EFFICIENCY OF INTUMESCENT FLAME RETARDANT ADDITIVES IN POLYPROPYLENE". En Fire Retardancy of Polymers, 325–40. Elsevier, 1998. http://dx.doi.org/10.1533/9781845698584.3.325.
Texto completoActas de conferencias sobre el tema "Intumescent polypropylene"
Nie, Shibin, Xiang Dong, De-yi Wang, Chao Peng y Lei Liu. "Preparation of Nanoporous Nickel Phosphates with Surfactants and Application in Intumescent Flame Retardant Polypropylene Composites". En 2014 International Conference on Materials Science and Energy Engineering (CMSEE 2014). WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814678971_0053.
Texto completoPappalardo, Salvatore, Domenico Acierno y Pietro Russo. "Influence of intumescent flame retardant and sepiolite on the mechanical and rheological behavior of polypropylene". En VIII INTERNATIONAL CONFERENCE ON “TIMES OF POLYMERS AND COMPOSITES”: From Aerospace to Nanotechnology. Author(s), 2016. http://dx.doi.org/10.1063/1.4949732.
Texto completoFARHADI, MEHRNOUSH, BRIAN Y. LATTIMER y SCOTT W. CASE. "FIRE PERFORMANCE OF SHORT AND LONG GLASS FIBER POLYPROPYLENE COMPOSITES FOR ELECTRIC VEHICLE BATTERY ENCLOSURES". En Proceedings for the American Society for Composites-Thirty Eighth Technical Conference. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/asc38/36587.
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