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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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uv固化水性超支化聚氨酯的合成及性能研究
Keywords: uv固化,水性,超支化,聚氨酯
Abstract:
？以季戊四醇（pel）为核，二羟甲基丙酸（dmpa）为单体合成一代超支化聚酯h10，并用丁二酸酐、甲苯二异氰酸酯（tdi）、丙烯酸羟丙酯（hpa）对h10进行改性，合成一系列不同配比的uv固化水性超支化聚氨酯（whpud）。研究了预聚体中丁二酸酐、tdi、hpa的加入量对whpud乳液的粒径、黏度、稳定性、涂膜固化速率、固化膜的耐水性和热稳定性的影响。实验结果表明：whpud3.0-1.0乳液的外观、粒径、黏度及稳定性最好，涂膜的uv固化率快，固化膜的耐水性及热稳定性优异，可以作为一种优异的涂料用水性聚氨酯树脂。
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