磷系阻燃改性共聚酯的热性能研究  

Study on thermal property of phosphorus flame-retardant copolyester

作　　者：王秀华[1] 马艳丽[1] 姚玉元[1] 万继宪[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018

出　　处：《聚酯工业》2011年第1期15-18,共4页Polyester Industry

基　　金：浙江理工大学科研启动基金项目(0701654-Y)

摘　　要：选用主链含磷的阻燃剂2-羧乙基苯基次膦酸和侧链含磷的阻燃剂9,10-二氢-9-氧杂-10-[2,3-二(2-羟基乙氧基)羰基丙基]-10-磷杂菲-10-氧化物,在3 L聚合反应釜上分别合成了磷质量分数为0.6%的阻燃改性共聚酯。利用TGA、DSC对其热性能进行了分析,并对其切片干燥和熔融后的黏度降进行了测试。结果表明,随着反应型阻燃剂的添加,阻燃共聚酯的tg,tm下降,而Δt热和Δt冷则呈上升趋势,结晶能力下降;共聚酯的初始热分解温度有所下降,经切片干燥和熔融后的黏度降增大。Two different kinds of flame-retardant copolyesters containing 0.6% phosphorus were synthesized in 3L autoclave.One was prepared with 2-carboxyethy（phenyl） phosphinic acid（CEPPA） which was the main chain phosphorus-containing flame retardent,the other one was 9,10-dihydro-10 [2,3-di（hydroxyl ethoxyl） carbonyl propyl]10-phosphaphenanthrene-10-oxide which was the pendant group phosphorus-containing flame retardant.Studied the thermal properties of flame-retardant copolyesters by TGA and DSC.Analyzed intrinsic viscosity degradation of flame-retardant copolyesters after chip being dealt with dryness and melting.The results indicated that the addition of reaction flame retardants made tg and tm of flame-retardant copolyesters decrease,while ΔtH and ΔtC increase,and crystallizability decrease.Comparing with PET,the initial decomposition temperature of flame-retardant copolyesters were lower,and intrinsic viscosity degradation rose after chip being dealt with dryness and melting.

关 键 词：PET 磷系阻燃改性 热性能 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]