聚氨酯改性聚醚多元醇对硬质聚氨酯泡沫性能的影响  

Properties of rigid polyurethane foam prepared with PIPA polyol

作　　者：薛海蛟[1] 丁雪佳[1] 李洪波[1] 吴恒澜[1] 唐斌[1] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029

出　　处：《化工进展》2009年第10期1777-1780,共4页Chemical Industry and Engineering Progress

基　　金：河南省交通厅资助项目(221084)

摘　　要：将聚氨酯改性聚醚多元醇(PIPA多元醇)与低羟值多元醇共混制备全水发泡硬质聚氨酯泡沫塑料,研究了扩链剂、交联剂、低羟值多元醇用量、异氰酸酯指数对材料压缩强度、弯曲强度、冲击强度等力学性能和动态流变性能的影响。结果表明:加入1,4-丁二醇和三羟甲基丙烷各1.0份,TMN-3050多元醇15份,异氰酸酯指数为1.15份的发泡材料的力学性能较好,兼具良好的强度和韧性。The rigid polyurethane foam blown by water was prepared with a polyisocyanate polyaddition （PIPA） polyol synthesized in lab and a polyol with a low hydroxyl value. The effects of such factors as the ratio of two polyols, chain extender and cross linker, isocyanate index on polyurethane product mechanical properties like compression, bend, impact strengths and dynamic rheological properties were studied. When the ratios of 1,4-butanediol, trimethylolpropane and TMN-3050 were 1.0pphp, 1.0pphp, 15pphp respectively, and the isocyanate index was 1.15, the product performed best with good strength and toughness.

关 键 词：聚氨酯 硬质泡沫 PIPA多元醇 力学性能 流变性能 

分 类 号：TQ32[化学工程—合成树脂塑料工业]