新型不黄变热塑性聚氨酯胶黏剂的研究  

Research on Non-yellowing Thermoplastic Polyurethane Adhesives

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：《化学与粘合》2008年第3期8-10,14,共4页Chemistry and Adhesion

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

摘　　要：介绍了一步法合成新型不黄变热塑性聚氨酯胶黏剂原料的选择及工艺；探索出了最佳合成工艺路线，并按国标进行了性能测试；通过大量实验确定了聚酯（PBA）与异佛尔酮二异氰酸酯最佳反应时间为6～10min、反应温度90～105℃、催化剂二月桂酸二丁基锡用量（质量）0．5％、R值为1．05、后熟化时间4～10h及后熟化温度为120～140℃；合成出了一种结晶度高、结晶速度快、内聚强度大、耐热性好、剥离强度高、稳定性好、综合性能优良的新型不黄变热塑性聚氨酯胶黏剂。The selection of raw materials and the technique of synthesis of the non - yellowing thermoplastic polyurethane adhesives by one - step method are introduced. The optimal synthesis route is found and tested according to the national standard. The resuhs showed that the optimal reaction time and temperature of polyester polyol and isophorone diisocyanate （PBA/IPDI） is 6 ～ 10min and 90～ 105℃ respectively, and the amount of catalyst （ dibutyhin dilaurate） is 0.5%, the R value is 1.05, the post cure temperature and time is 120 ～ 140℃ and 4 ～ 10h respectively. A novel non - yellowing thermoplastic polyurethane adhesive is synthesized with excellent comprehensive performances, such as high crystallinity, fast crystallization velocity, high cohesion, good thermal stability, high peel strength, and good stability.

关 键 词：聚氨酯胶黏剂 不黄变聚氨酯 胶黏剂 热塑性 

分 类 号：TQ433.432[化学工程]