间位芳纶树脂对牵引电机用耐高温绝缘漆的改性研究  

Research on Modification of Meta-aramid Resin on High Temperature Resistant Insulating Varnish for Traction Motor

作　　者：刘含茂[1] 曾凡辉[1] 贾金荣[1] 吕保杰[1] LIU Hanmao;ZENG Fanhui;JIA Jinrong;LÜ Baojie(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《绝缘材料》2021年第7期43-46,共4页Insulating Materials

摘　　要：采用间位芳纶树脂对聚酯亚胺绝缘漆进行改性,制得了一种牵引电机用耐高温绝缘漆。研究了间位芳纶树脂对绝缘涂层附着力、电气性能、阻燃性能和耐热性能的影响。结果表明:当间位芳纶树脂用量为15%时,绝缘涂层的电气强度达65 kV/mm,附着力达12.9 MPa,氧指数可达28.7%,在220℃下经500 h耐高温试验后漆膜无开裂脱落,仅轻微变色,可满足牵引电机的使用要求。A high temperature resistant insulating varnish for traction motors was prepared by modifying polyester imide insulating varnish with meta-aramid resin.The effects of meta-aramid resin on the adhesion,electrical properties,flame retardancy,and heat resistance of the insulating coating were studied.The results show that when the content of meta-aramid resin is 15%,the electrical strength,the adhesion,the oxygen index of the insulating coating reaches 65 kV/mm,12.9 MPa,28.7%,respectively.After high temperature test at 220℃for 500 h,the paint film shows slight discoloration without cracking and peeling off,which can meet the requirements of the traction motors.

关 键 词：牵引电机 芳纶树脂 阻燃性能 耐高温绝缘漆 

分 类 号：TM215.4[一般工业技术—材料科学与工程]