磷氮硅一体化膨胀型阻燃剂阻燃聚丙烯  

Flame Retardant Polypropylene Filled with the Intumescent Flame Retardant Containing the Elements of Phosphorus,Nitrogen and Silicon

作　　者：陈少华[1] 刘石磊[1] 杨林[2] 亢健[1] 盖景刚[1] 陈金耀[1] 曹亚[1] 

机构地区：[1]高分子材料工程国家重点实验室四川大学高分子研究所,四川成都610065 [2]四川大学化工学院,四川成都610065

出　　处：《高分子材料科学与工程》2013年第5期129-132,共4页Polymer Materials Science & Engineering

基　　金：新世纪优秀人才支持计划(NCET-10-0562)

摘　　要：采用三氯氧磷、季戊四醇、对苯二胺和氨基硅油成功制备出新型磷氮硅一体化膨胀型阻燃剂(P-N-S-i IFR),通过极限氧指数、锥形燃烧和热失重测试对比研究了常规磷氮膨胀型阻燃剂(P-N-IFR)与P-N-S-i IFR对PP的阻燃效果。结果表明,含有P-N-IFR的PP阻燃体系的极限氧指数、平均热释放速率和残炭率分别为30.7、240 kW/m2和8.7%,含30%的P-N-S-i IFR的PP阻燃体系的3种参数分别为34.0、94kW/m2和15.2%,表明P-N-S-i IFR对PP阻燃和提高热稳定性的效果优于P-N-IFR对PP阻燃和增强热稳定性的效果。通过X射线衍射分析了含有两种阻燃剂的PP残炭结构,探讨了P-N-S-i IFR的阻燃机理。Phosphorus oxychloride, pentaerythritol, p-phenylenediamine and amino-terminatedsilicone oil were used to synthesize intumescent flame retardant containing the elements of phosphorus, nitrogen and silicon（P-N-Si- IFR）. The inflaming retarding effect of the normal intumescent flame retardant containing the elements of phosphorus and nitrogen （P-N-IFR） and P-N-Si-IFR on PP were studied through limiting oxygen index, cone calorimetry tests and thermogravometric analysis. Limiting oxygen index, average heat release rate and mass residue of PP/P-N-IFR （70/30, mass ratio） are 30.7, 240kW/m2 and 8.7 % respectively, and those of PP/P-N-Si-IFR（70/30, mass ratio） are 34.0, 94kW/m2 and 15.2 % respectively, which indicate the inflaming retarding effect and thermal stability of P- N-Si-IFR on PP are better than those of P-N-IFR on PP. The char layerstructure was investigated by X-ray diffraction and the flame-retardant mechanism of P-N-Si-IFR on PP was explored.

关 键 词：聚丙烯 膨胀型阻燃剂 含硅阻燃剂 

分 类 号：TQ314.248[化学工程—高聚物工业]