摘要
以异佛尔酮二异氰酸酯(IPDI)、聚醚二元醇(PTMEG)和丙烯酸酯类单体为主要原料,三羟甲基丙烷(TMP)和自制的超支化聚氨酯(HBPU)为交联剂,合成了聚氨酯(PU)/聚丙烯酸酯(PA)水性乳液。热重分析(TGA)及动态力学分析(DMA)研究表明,采用两种交联剂合成的聚合物耐热性能相差不大,均具有良好的阻尼性能(阻尼因子tanδ约为0.75,tanδ>0.3的温度范围约为60℃);随着PA组份含量的增加,阻尼性能越好。
The emulsion of waterborne polyurethane /PA was prepared with isophorone diisocyanate,PTMEG,acrylate monomer as main material,trimethylolpropane and self-made hyperbranched polyurethane as cross-linking agent.Ther-mogravimetric analysis（TGA） and dynamic mechanical analysis（DMA） results showed that the heat resistance of polymers with two different cross-linking agents was little difference,and the damping properties was good when damping factor tanδ was about 0.75,the temperature range of tanδ greater than 0.3 was about 60℃.And the damping properties was better with the increasing contents of PA.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2012年第11期1482-1485,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(51173001
21044006)
安徽省自然科学基金资助项目(11040606M59)
关键词
超支化聚氨酯
丙烯酸酯
阻尼性能
动态力学分析
hyperbranched polyurethane
acrylic ester
damping properties
dynamic mechanical analysis
