摘要
采用聚四氢呋喃二醇(PTMG)、聚碳酸酯二醇(PCDL)、脂肪(环)族二异氰酸酯、自制交联剂HTM等为主要原料,制备了高性能透明聚氨酯弹性树脂,讨论了异氰酸酯类型、PCDL、交联剂HTM等对聚氨酯弹性树脂及涂膜性能的影响,并采用红外光谱(FTIR)对树脂的结构进行了表征。结果表明,采用IPDI做树脂的异氰酸酯组分,得到的产品相容性好、透明度高;加入质量分数为20%的PCDL,改善了树脂的透明度和耐候性;交联剂HTM的引入,进一步提高了树脂的透明度、耐磨性、力学性能以及热稳定性等性能;FTIR谱图表明该树脂为不含异氰酸酯单体、羟基封端的PTMG和PCDL共混型聚氨酯弹性树脂。
High performance transparent polyurethane elastic resin was preparaed by using polytetrahydrofuran(PTMG),polycarbonate(PCDL),aliphatic isocyanate and crosslinking agent HTM as the main raw material.The effects of the main factors such as the types of isocyanate,PCDL and crosslinking agent HTM on the performance of polyurethane elastic resin and its film were discussed.The structure and composition of resin were also analyzed and characterized with FTIR.The results showed that the resin by using IPDI as isoc...
出处
《聚氨酯工业》
北大核心
2009年第1期18-21,共4页
Polyurethane Industry
关键词
聚氨酯
透明
弹性树脂
高性能
polyurethane
transparent
elastic resin
high performance
