Results 121 to 130 of about 904 (182)
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Strong base catalyzed intumescent flame retardants
Journal of Materials Science Letters, 2000Intumescent flame retardants form a foamed-char barrier layer when exposed to a flame. Conventional systems are based on the acid catalysed dehydration of carbonifics such as dipentaerythritol. Metal oxides also have utility as catalytic flame retardants.
Focke, Walter Wilhelm +2 more
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Flame retardancy and thermal degradation of intumescent flame retardant polypropylene material
Polymers for Advanced Technologies, 2011AbstractThe flame retardancy and thermal degradation properties of polypropylene (PP) containing intumescent flame retardant additives, i.e. melamine pyrophosphate (MPyP) and charring‐foaming agent (CFA) were characterized by limiting oxygen index (LOI), UL 94, cone calorimeter, microscale combustion calorimetry, and thermogravimetric analysis (TGA ...
Xilei Chen, Chuanmei Jiao
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Flame retardant property of novel intumescent flame retardant rigid polyurethane foams
Polymer Engineering & Science, 2013The novel intumescent flame retardant rigid polyurethane foams ((PEPS‐RPUF) were prepared based on a P‐N containing intumescent flame retardant, poly ethanediamine spirocyclic pentaerythritol bisphosphonate (PEPS). The flammability, thermal, and mechanical properties of PEPS‐RPUF were discussed.
Denghui Wu, Peihua Zhao, Yaqing Liu
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Thermal degradation and flame retardancy of epoxy resins containing intumescent flame retardant
Journal of Thermal Analysis and Calorimetry, 2009Abstract Pentaerythritol diphosphonate melamine-urea-formaldehyde resin salt, a novel cheap macromolecular intumescent flame retardants (IFR), was synthesized, and its structure was a caged bicyclic macromolecule containing phosphorus characterized by IR.
M. Gao, W. Wu, Y. Yan
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A novel intumescent flame‐retardant system for flame‐retarded LLDPE/EVA composites
Journal of Applied Polymer Science, 2009AbstractA new intumescent flame retardant (IFR) system consisting of ammonium polyphosphate (APP) and charing‐foaming agent (CFA) and a little organic montmorillonite (OMMT) was used in low‐density polyethylene (LLDPE)/ethylene‐vinyl acetate (EVA) composite.
Bin Li +4 more
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A novel intumescent flame retardant imparts high flame retardancy to epoxy resin
Polymers for Advanced Technologies, 2019Intumescent flame retardant (IFR) has received the considerable attention ascribed to the inherent advantages including non‐halogen, low toxicity, low smoke release and environmentally friendly. In this work, a novel charring agent poly (piperazine phenylaminophosphamide) named as PPTA was successfully synthesized and characterized by Fourier transform
Jie Wang +4 more
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Flame-Retardant Effect of Sepiolite on an Intumescent Flame-Retardant Polypropylene System
Industrial & Engineering Chemistry Research, 2011Intumescent flame-retardant polypropylene-containing phosphorus and nitrogen compounds were enhanced significantly by adding a small amount of sepiolite as a synergistic agent. The flame-retardant polypropylene composite was characterized by limiting oxygen index (LOI), UL-94, the cone calorimeter (CCT), and thermogravimetric analysis (TGA) to study ...
Yun Liu +5 more
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Thermal and flame retardant properties of novel intumescent flame retardant polypropylene composites
Journal of Thermal Analysis and Calorimetry, 2012Novel intumescent flame retardant polypropylene (PP) composites were prepared based on a char forming agent (CFA) and silica-gel microencapsulated ammonium polyphosphate (Si-MCAPP). The thermal and flame retardancy of flame retardant PP composites were investigated by limiting oxygen index, UL-94 test, cone calorimetry, thermogravimetric analysis ...
Shibin Nie +3 more
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Flame retardants: intumescent systems
1998Intumescent fire retardant additives undergo a thermal degradation process on heating, which produces a thermally stable, foamed, multicellular residue called ‘intumescent char’. When these substances are added to a polymeric material which is later involved in a fire, they produce an intumescent char which accumulates on the surface, while the polymer
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Polymer Binders of Flame-Retardant Intumescent Coatings
2020This chapter presents the results of review and comparison of contributions made by film formers of intumescent composition, which initially forms a fire-retardant coating. Based on a critical analysis of literature and experimental data, it is shown that the nature of polymer binder has a direct effect on the fire-retardant efficiency of the ...
Olga Zybina, Marina Gravit
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