聚己内酯型聚氨酯弹性体的合成与性能研究  

Study on Synthesis and Properties of Polycaprolactone Polyurethane Elastomer

作　　者：张晓远[1] 刘锦春[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《特种橡胶制品》2012年第1期27-30,共4页Special Purpose Rubber Products

摘　　要：采用聚己内酯多元醇CP-20、异氰酸酯和扩链剂等为主要原料,通过预聚物法合成聚氨酯弹性体。研究了预聚物中ω(-NCO%)含量、异氰酸酯种类、扩链剂种类及扩链系数等对聚氨酯弹性体性能的影响。结果表明,CP-20/TDI-100/MOCA体系和CP-20/MDI-100/BDO体系的聚氨酯弹性体具有优良的物理机械性能。The polyurethane elastomer was prepared by the method of prepolymer based on polycaprolactone(Mn=1000,Mn=2000),diisocyanate and chain extender.The effect of different free ω(-NCO%),diisocyanate,chain extender and extender chain coefficient on the properties of polyurethane elastomer was studied.The results showed that polyurethane elastomer had better mechanical properties base on CP-20/TDI-100/MOCA and CP-20/MDI-100/BDO system.

关 键 词：聚氨酯弹性体 聚己内酯多元醇 扩链剂 异氰酸酯 

分 类 号：TQ334.1[化学工程—橡胶工业]