摘要
文章以异弗尔酮二异氰酸酯(IPDI)、2,2-二羟甲基丁酸(DMPA)、顺丁烯二酸酐、甲基丙烯酸羟乙酯(HEMA)为主要原料合成水溶性光固化聚乙烯醇缩丁醛改性聚氨酯。通过FT-IR、TGA等分析测试手段,研究了顺丁烯二酸酐改性的聚乙烯醇缩丁醛对水性丙烯酸聚氨酯热稳定性的影响。结果表明将聚乙烯醇缩丁醛和顺丁烯二酸酐引入到聚氨酯中,可显著提高其耐热性能,同时降低聚氨酯软硬段的微相分离。
The UV-curable water-based polyvinyl butyral modified polyurethane was synthesized by using isophorone diisocyanate（IPDl）, polypropylene glycol（PPG 1000）, 2,2 - dihydroxy methyl butyric acid（DMPA）, maleic anhydride, hydroxyethyl methylacrylate（HEMA） as the main raw materials. The structure was confirmed by FT-IR spectrum. The thermal performance was investigated by TGA.The results showed that polyvinyl butyral and maleic anhydride can significantly improve polyurethane thermal stability, and reduce the degree of microphase separation of polyurethane hard segment and soft segment..
出处
《广东化工》
CAS
2014年第12期1-2,9,共3页
Guangdong Chemical Industry
