Research on characterization of thermotropic polyurethane membrane of PDAG/BDO/MDI  

作　　者：ZHAO Ya-juan TAI Yu-lei LI Xin-hua CHENG Jiang 

机构地区：[1]College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325027, China

出　　处：《Journal of Chemistry and Chemical Engineering》2008年第6期1-6,17,共7页化学与化工（英文版）

基　　金：Acknowledgments： This work was supported in part by the National Natural Science Foundation of China （No. 20504023）.

摘　　要：Adopting Poly（ethylene glycol） adipate Dilpoly- （ethylene glycol）] adipate polydiglycol adipate glycol （PDAG）, 1,4-butanediol （BDO）, hydroxy silicone oil, methylene diphenyl diisocyanate （MDI） as the raw material, a new polyurethane elastic body can be made through prepolymerization. After measurement of the moisture permeability, adsorption quantity and mechanical properties of the membrane made with the elastic body, we also proofed its formula by infrared spectroscopy. The result showed that the moisture permeability of the membrane, with a certain intelligent thermotropic quality, will increase by 3 to 4 times when the temperature is between 25℃-45℃.

关 键 词：POLYURETHANE INTELLIGENT THERMOTROPIC 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] TQ223.162