摘要
以聚醚多元醇3010,甲苯二异氰酸酯,1,4-丁二醇和催化剂为原料,采用一步法来制备浇注型聚氨酯弹性体。研究了工艺条件(不同固化温度、固化时间和初始反应温度)以及浇注成型产生的缺陷对聚氨酯弹性体力学性能的影响。结果表明:采用固化温度为140℃,固化时间为4h和初始反应温度为50～60℃的合成工艺条件时,聚氨酯弹性体的综合性能达到最佳,并且能够解决浇注成型时所产生的缺陷,可使产品的综合性能得以提高。
Glycerol polyether 3010, tolylene diisocyanate, 1,4-butanediol and catalysts are used as raw materials to preparecasting polyurethane elastomer in one step. Effects of process conditions such as different curing temperature, curing time,starting reaction temperature and casting flaw on polyurethane elastomers mechanical properties are investigated.The results show at the curing temperature 40℃, curing time 4 hr and initial temperature 50～60 ℃, the general performance of polyurethane elastomers has the best excellence, and the casting flaw is eliminated to enhance the comprehensive performance.
出处
《化工生产与技术》
CAS
2006年第2期20-21,53,共3页
Chemical Production and Technology
基金
浙江省教育厅课题
项目编号20041306。
关键词
聚氨酯弹性体
聚醚多元醇
甲苯二异氰酸酯
合成
工艺条件
力学性能
polyurethane elastomers
glycerol polyether
tolylene diisocyanate
synthesis
process conditions
mechanical properties
