无卤阻燃ABS/TPU复合材料阻燃性能的研究  

Study on the Flame Retardancy of Halogen Free Flame Retardant ABS/TPU Composite

作　　者：李磊[1] 周健[2] 吴承旭[1] 董观秀[2] 杨润苗[2] 杨雁玲[2] 

机构地区：[1]江苏工业学院材料科学与工程学院,江苏常州213164 [2]江苏技术师范学院材料工程学院,江苏常州213001

出　　处：《塑料工业》2010年第9期53-56,共4页China Plastics Industry

基　　金：国家自然科学基金(40973046)

摘　　要：采用了微胶囊红磷(MRP)、氢氧化镁(MH)、聚硅氧烷组成复合阻燃剂,对丙烯腈-丁二烯-苯乙烯(ABS)/热塑性聚氨酯(TPU)合金进行改性,获得了环保型阻燃ABS/TPU复合材料。对该复合材料进行了阻燃性能、热稳定性测试和炭层形貌分析。结果表明,当复合阻燃剂MRP/MH质量比为1/1且添加量为16份时,复合材料的极限氧指数(LOI)为25.7%,垂直燃烧性能通过FV-0级;TPU结构中因含氧,有利于MRP/MH阻燃体系阻燃;添加6份聚硅氧烷,复合材料垂直燃烧级别达到FV-0级,聚硅氧烷燃烧过程中通过改变炭层形貌,提高阻燃性。The ABS/TPU alloy was modified by using flame retardant composite consisting of MRP,MH and polysiloxane to obtain environmental friendly flame-retardant ABS/TPU composites.The flame retardancy,thermal stability,the morphology of char layer of the composite was tested.The results showed that when adding 16 phr flame retardant which was composed of m（MRP）/m（MH）=1∶1,the limit oxygen index（LOI）of composite reached 25.7%,vertical combustion property passed FV-0 rate.In the MRP/MH flame retardant system,TPU with oxygen had synergy flame retardant effect.When adding 6 phr polysiloxane,the vertical combustion property of ABS/TPU composite reached FV-0 rate and the improvement of the flame retardant was strongly depended upon changing the morphology of the char layer in burning.

关 键 词：丙烯腈-丁二烯-苯乙烯 热塑性聚氨酯 成炭 阻燃性 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]