Research Progress in Metal Catalysts for Degradation and Carbonization of Flame⁃retardant Polymer

doi:10.19491/j.issn.1001-9278.2021.05.021

Abstract

Abstract:

This paper reviewed the current research status of anti?dropping flame retardant polymers and introduced the app-lications of metal catalysts for catalyzing the degradation and carbonization of polymers. These metal catalysts include iron， molybdenum， nickel， zinc compounds， and some rare earth materials. The paper also reviewed the research progress in catalyzing carbon into anti?melt droplets in polymer flame retardancy， especially for the main role of iron catalysts. Finally， the application of metal catalysts for anti?melt droplets in polyester was prospected.

Key words: metal catalyst, flame retardant polymer, anti-melt dropping, char formation

CLC Number:

TQ 314.24⁺2

LIU Tong, WEI Jianfei, WANG Rui. Research Progress in Metal Catalysts for Degradation and Carbonization of Flame⁃retardant Polymer[J]. China Plastics, 2021, 35(5): 135-145.

Figures/Tables 4

References 47

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金属催化剂的种类	主要应用领域	相关阻燃机理
铁系化合物	PVC、EP、PA6等	催化聚合物脱氢，并交联成炭
钼系化合物	PVC、PP、PAN等	通过Lewis酸促进碳层生成
锌系化合物	PC、PE、PLA等	催化热降解产物发生交联成炭
镍系化合物	PP、PAN、PA6等	催化热降解产物发生交联成炭
部分稀土材料	PA6、TP0等	稀土离子与官能团反应，反应产物交联成炭

金属催化剂的种类	主要应用领域	相关阻燃机理
铁系化合物	PVC、EP、PA6等	催化聚合物脱氢，并交联成炭
钼系化合物	PVC、PP、PAN等	通过Lewis酸促进碳层生成
锌系化合物	PC、PE、PLA等	催化热降解产物发生交联成炭
镍系化合物	PP、PAN、PA6等	催化热降解产物发生交联成炭
部分稀土材料	PA6、TP0等	稀土离子与官能团反应，反应产物交联成炭

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