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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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芳香族聚酯聚醚型水性聚氨酯的合成及性能研究
Keywords: 甲苯二异氰酸酯,水性聚氨酯,聚酯聚醚型,芳香族
Abstract:
？以甲苯二异氰酸酯（tdi）、聚酯二元醇（pba）、聚醚二元醇（n220）、二羟甲基丙酸（dmpa）、三羟甲基丙烷（tmp）等为主要原料合成了一系列水性聚氨酯乳液（wpu）。探讨了聚醚与聚酯的含量、交联度等因素对水性聚氨酯乳液外观、粒径以及膜的红外结构、耐热性能和力学等性能的影响。结果表明：聚酯含量的增加有利于提高水性聚氨酯的结晶和耐水性、耐热性能，交联度的增加破坏了水性聚氨酯分子链的规整性，使得其结晶能力下降，耐热性能变化不明显，但是耐水性得到提高。
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