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.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
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)
关键词
聚丙烯
膨胀型阻燃剂
含硅阻燃剂
polypropylene
intumescent flame retardant
silicone-containing flame retardant
