一种磷硅阻燃剂的制备及对聚碳酸酯阻燃性能的研究  

Synthesis and Applications of Phosphorus-Silicon Flame Retardants for Polycarbonates

作　　者：郝鸿业 管会彬 陈奎[1] 李洁华[1] 谭鸿[1] 

机构地区：[1]高分子材料工程国家重点实验室(四川大学)四川大学高分子科学与工程学院,四川成都610065

出　　处：《塑料工业》2016年第8期106-110,137,共6页China Plastics Industry

摘　　要：采用逐步升温的本体聚合方法,合成了含磷、硅的阻燃剂二苯基硅氧烷-二氧苯基乙酮-苯基磷酸酯共聚物(BHPD),并用傅立叶变换红外光谱(FT-IR)和核磁共振氢谱(1H NMR)对其结构进行了表征。通过热重分析(TGA)对BHPD及其阻燃改性PC的热稳定性进行了研究。采用极限氧指数(LOI)、垂直燃烧(UL94)、微型量热仪(MCC)和扫描电镜(SEM)对BHPD的阻燃性能进行了研究,结果表明BHPD对PC阻燃性能明显提升,BHPD添加量为15%时,极限氧指数从纯PC的26%升高到了48%,UL94阻燃级别从V-2提高到了V-0级。In this paper, a novel flame retardant of diphenyl silane-phenylethanone-phenyl phosphate ester copolymer （BHPD） containing silicon and phosphorous was synthesized via bulk polymerization. The structure of BHPD was characterized by nuclear magnetic resonance spectroscopy （^1H NMR） and Fourier transform infrared spectroscopy （FTIR）. The thermal properties of BHPD and polycarbonate （PC） containing BHPD were investigated using thermal gravimetric analyzer （TGA）. The flame resistance property of the BHPD/PC blend was studied by limiting oxygen index （LOI）, UL-94 vertical burning, microcombustioncalorimetry （MCC） tests and scanning electron microscopy （SEM）. The results show that BHPD could improve the flame retardant performances of PC significantly. When the addition amount of BHPD reaches 15% in PC, LOI value of PC composites is raised from 26% for pure PC to 48%, and the flame retardance grade of UL94 could reach V-0 rating.

关 键 词：聚碳酸酯 阻燃 磷 硅 协效 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]