PEPA改性聚氨酯-酰亚胺泡沫塑料的性能研究  

Research of PEPA modified polyurethane-imide foam

作　　者：孙立婧 白静兰 张琪 桑晓明 

机构地区：[1]华北理工大学材料科学与工程学院河北省无机非金属材料重点实验室,唐山063009

出　　处：《化工新型材料》2016年第1期159-161,164,共4页New Chemical Materials

基　　金：河北省自然科学基金资助项目(E2014209280);河北省高等学校科学技术研究重点项目(ZH2012014)

摘　　要：以多异氰酸酯、3,3′,4,4′-二苯甲酮四羧酸二酐(BTDA)、笼状季戊四醇磷酸酯(PEPA)、聚醚多元醇为主要原料,采用PI预聚法和自由发泡工艺制备了PEPA改性聚氨酯-酰亚胺(PUI)泡沫塑料。用红外光谱表征了PEPA改性PUI泡沫塑料的结构,并研究了PEPA对泡沫的泡孔结构、力学性能及阻燃性能的影响。结果表明,随PEPA含量的增加,PEPA改性PUI泡沫塑料的泡孔逐渐向较规则的多边形转变,在30份时泡孔分布较均匀,多呈六边型,改性PUI泡沫塑料获得较好的力学性能,且PEPA的引入在一定程度上提高了PUI的阻燃性能。The PEPA modified polyurethane-imide（PUI）foam was prepared using polyisocyanate,3,3′,4,4′-benzophenone tetracarboxylic dianhydride（BTDA）,caged pentaerythritol phosphate（PEPA）and polyether polyol alcohol as the main raw material by PI prepolymer method and free foaming process.The chemical structure of PEPA modified polyurethane-imide foam was characterized by FT-IR.The influences of PEPA on the cell structure,mechanical properties and flame resistance of foam were studied.It was showed that with the increase of the amount of PEPA,foam cells gradually shift to more regular polygon.When PEPA amount of 30 parts,the more uniform distribution of cells which was mostly hexagonal arised.The foam obtained better mechanical properties.And the introduction of PEPA to some extent improved the flame resistance of PUI.

关 键 词：笼状季戊四醇磷酸酯(PEPA) PEPA改性聚氨酯-酰亚胺泡沫塑料 泡孔结构 力学性能 阻燃性能 

分 类 号：TQ328.0[化学工程—合成树脂塑料工业]