摘要
在不饱和耐热聚酯树脂的基础上,采用引入亚胺基团封端技术,减少活性基团,优化主链结构,制得一种亚胺改性不饱和耐热聚酯H级无溶剂浸渍漆,对其进行了贮存稳定性、干燥性和电气强度等常规性能测试,并检测了介质损耗因数和分子量分布等,用红外光谱、热失重等方法对其分子结构进行了表征。结果表明:这种无溶剂浸渍漆具有良好的贮存稳定性、耐高温、介质损耗因数低和分子量分布窄等特点,能够满足高压电机对无溶剂浸渍漆的要求。
A kind of class H unsaturated polyester-imide solventless impregnating varnish for high-voltage motor was investigated in the paper.The regular property of this varnish was studied by FT-IR,TGA and dielectric loss factor(tanδ)etc.The results indicate that this varnish has excellent heat resistance,low dielectric loss factor,and good storage ability,which meet the requirements of varnish for high voltage motor well.
出处
《绝缘材料》
CAS
2005年第3期11-13,16,共4页
Insulating Materials
关键词
聚酯亚胺
浸渍漆
介质损耗因数
高压电机
polyester-imide
impregnating varnish
dielectric loss factor(tanδ)
high-voltage motor
