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环氧树脂改性醇溶性聚氨酯胶粘剂的制备与性能 被引量:3

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摘要 醇溶性聚氨酯胶粘剂是一种新型的环保型产品,有着比水性聚氨酯更优异的性能。本实验采用聚醚210、甲苯二异氰酸酯(TDI)为主要原料,在特定条件下合成聚氨酯预聚体,然后加入交联剂三羟甲基丙烷(TMP),扩链剂二羟甲基丙酸(DMPA)和一缩二乙二醇(DEG),再加入成盐剂三乙胺,乙醇做分散介质制成醇溶聚氨酯乳液。将乳液制成胶膜,然后通过对胶膜进行力学强度、拉伸剪切强度、吸水率、红外光谱(IR)、差示扫描量热法(DSC)透射电子显微镜(TEM)等测试,探讨了异氰酸酯基(-NCO)与羟基(-OH)的摩尔比对涂膜力学性能的影响;羧基(-COOH)含量对乳液性能及胶膜力学性能的影响,结果表明了环氧树脂参与了反应达到改性的目的。 Alcohol-soluble polyurethane adhesive as a kind of new product performs better than waterborne PU adhesive and can also reduce environmental footprint.
出处 《环球聚氨酯》 2008年第10期62-65,共4页 Polyurethane Monthly
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