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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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新型环氧树脂改性水性聚氨酯的合成与性能研究
Keywords: 环氧树脂,水性聚氨酯,乙二胺,改性
Abstract:
？选用异佛尔酮二异氰酸酯（ipdi）、聚四氢呋喃二醇（ptmg）、二羟甲基丙酸（dmpa）及一缩二乙二醇（deg）为主要原料，经相转化法合成了阴离子型水性聚氨酯（wpu）自乳化乳液；再加入过量胺开环的环氧树脂e-51，后扩链30min，得到一系列状态稳定的环氧树脂e-51改性水性聚氨酯（epu）乳液。并对乳液及胶膜进行了结构表征和性能测试，研究表明：环氧树脂e-51成功被乙二胺开环，用其改性水性聚氨酯，可以使胶膜的机械性能增强，24h吸水率降至1.46%，硬度、耐热性能均得到较大提高。
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