预聚体法合成新型不黄变聚氨酯胶黏剂的研究  

Research on Synthesis of Novel Non-Yellowing Polyurethane Adhesives by Prepolymer Method

作　　者：徐文超[1] 朱长春[2] 宋文生[1] 唐亚夫[2] 

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471003 [2]洛阳吉明化工有限公司,河南洛阳471012

出　　处：《化学推进剂与高分子材料》2008年第3期26-28,34,共4页Chemical Propellants & Polymeric Materials

基　　金：河南省高等学校青年骨干教师资助计划项目(豫教高[2005]461号)

摘　　要：介绍预聚体法合成不黄变聚氨酯胶黏剂的基本工艺。实验确定IPDI/PBA3000体系的预聚最佳反应温度在90～95℃,预聚时间为3.0h,聚酯含水质量分数控制在0.05%以内,制备出的不黄变聚氨酯预聚体性能稳定。以1,6-己二醇为扩链剂,选择异氰酸酯指数为1.05;并在120～140℃下后熟化4～10h,常温下放置1周,制得的新型不黄变聚氨酯胶黏剂耐热性好、粘接强度高、综合性能优良。A basic synthesis process of non-yellowing polyurethane adhesive by prepolymer method is introduced. The results show that optimal reaction temperature of polyester polyol and isophorone diisocyanate （PBA/IPDA） is 90～95℃, reaction time is 3.0h, moisture content of polyester polyol should be lower than 0.05%（mass fraction）. Using 1,6-hexandiol as chain extender, under the conditions of R value 1.05, post-curing temperature 120-140℃, post-curing time 4～10 h, room temperature for 1 week, novel nonyellowing polyurethane adhesive with good thermal stability, high peeling strength and good comprehensive performance was synthesized.

关 键 词：聚氨酯胶黏剂 不黄变聚氨酯 胶黏剂 预聚体 

分 类 号：TQ433.432[化学工程]