摘要
以聚碳酸酯二元醇(PCDL)为软段,分别以异氟尔酮二异氰酸酯(IPDI)、甲苯二异氰酸酯(TDI)、二苯基甲烷二异氰酸酯(MDI)、六亚基二异氰酸酯(HDI)为硬段,采用丙酮法制备了四种不同硬段组成的PCDL型水性聚氨酯(WPU)。综合对比,研究了硬段类型对PCDL型WPU结构与性能的影响。结果表明,芳香族WPU的力学性能及热稳定性能更好,脂肪族WPU的柔顺性及附着力等更好。
Taking polycarbonate diol(PCDL)as soft segments and isophorone diisocyanate(IPDI),toluene diisocyanate(TDI),diphenylmethane diisocyanate(MDI)and six-subunit diisocyanate(HDI)as hard segments,the waterborne polyurethane(WPU)with different composition were synthesized by acetone method.The influence of hard segment type on the structure and performance of PCDL-type WPU was studied.The results show that aromatic WPU has better mechanical properties and thermal stability,while aliphatic WPU has better flexibility and adhesion.
作者
何小航
刘静月
钟家春
蒲泽军
罗宏
HE Xiao-hang;LIU Jing-yue;ZHONG Jia-chun;PU Ze-jun;LUO Hong(College of Materials Science and Engineering,Sichuan University of Science&Engineering,Zigong 643000,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2021年第1期26-29,共4页
China Plastics Industry
关键词
硬段
水性聚氨酯
结构
性能
Hard Segment
Waterborne Polyurethane
Structure
Performance
