低收缩不饱和聚酯及其染色性研究  

Studies on the Low-shrinkage and Dyeability of Unsaturated Polyester

作　　者：印琦[1] 黄文艳[1] 蒋必彪[1] 连伟昌[1] 丁浩[1] 

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

出　　处：《塑料工业》2010年第2期68-71,共4页China Plastics Industry

基　　金：国家自然科学基金(20574032);中石油科技中青年创新基金(05E7009);常州市高分子新材料重点实验室资助项目

摘　　要：以甲基丙烯酸甲酯(MMA)和苯乙烯(St)为共聚单体,改变MMA和St的单体配比,用悬浮聚合方法合成了一系列共聚物,并以此作为低收缩添加剂(LPA),溶解于St中,加入到不饱和聚酯(UP)中进行固化反应。在此基础上,改变固化反应温度,LPA用量和种类,研究了LPA/UP体系固化后的体积收缩率、染色性能和力学性能。结果表明:MMA-St共聚物作为LPA,可以有效地降低UP固化后的体积收缩,并且保证了固化产物力学性能不降低和着色的均一性。The methyl methacrylate （MMA） and styrene （St） as comonomer were synthesized in dif- ferent proportion of MMA and St by suspension polymerization, and made it as low-profile additives （LPA） dissolved into St solution, then added into the unsaturated polyester resins （UP） and made a curing reaction. This experiment, changed the curving temperature, the dosage of LPA and its types, studied the volume shrinkage of LPA/UP system after curving, its dyeability and mechanical property. Studies indicated that MMA-St as LPA, could decreased volume shrinkage of UP after curing, and ensured that the mechanical properties of the cured product and the uniformity of color.

关 键 词：不饱和聚酯 低收缩添加剂 收缩率 内着色 力学性能 

分 类 号：TQ323.42[化学工程—合成树脂塑料工业]