PUA改性无溶剂型有机硅绝缘浸渍漆膜绝缘性能及力学性能分析  

Analysis of Insulating and Mechanical Properties of PUA Modified Solvent-Free Silicone Insulating Impregnating Varnish Film

作　　者：倪艳荣 李承斌 李萍 王雷 张天姿 林博 NI Yanrong;LI Chengbin;LI Ping;WANG Lei;ZHANG Tianzi;LIN Bo(College of Cable Engineering,Henan Institute of Technology,Xinxiang 453003,China;Henan Key Laboratory of Wire and Cable Structures and Materials,Xinxiang 453003,China)

机构地区：[1]河南工学院电缆工程学院,河南新乡453003 [2]河南省线缆结构与材料重点实验室,河南新乡453003

出　　处：《河南工学院学报》2024年第4期1-5,共5页Journal of Henan Institute of Technology

基　　金：河南省科技攻关项目(242102230175,242102230167);河南省自然科学基金项目(242300421615);河南省高等学校重点科研项目(24B430006)。

摘　　要：无溶剂型有机硅绝缘浸渍漆具有优良的绝缘性能、流动渗透性、耐化学腐蚀性等一系列优点,但其漆膜的粘结强度、冲击强度、拉伸强度相对较低。该文通过不同官能度的PUA预聚体与无溶剂型有机硅绝缘浸渍漆混合后反应,得到了改性无溶剂型有机硅绝缘浸渍漆,并探讨了不同官能度PUA预聚体的添加量对漆膜的绝缘性能以及力学性能的影响。试验结果表明:PUA_(6)改性无溶剂型有机硅绝缘浸渍漆的绝缘性最好,PUA_(6)预聚体添加量为10%时,漆膜的力学性能最优。Solvent-free silicone insulating impregnating varnish has a series of advantages such as excellent insulating properties,flow permeability,chemical corrosion resistance,etc.However,its adhesive strength,impact strength and tensile strength are relatively low.In this paper,the modified solvent-free silicone insulation impregnating varnish was obtained by mixing the multifunctional PUA prepolymer with solvent-free silicone insulation impregnating varnish.The influences of the amount of PUA prepolymer with different functional degree on the electrical and mechanical properties of the varnish films were discussed.The results show that the insulation properties of the solvent-free silicone insulating impregnating varnish film modified by PUA6 are the best.When the addition of PUA6 prepolymer is 10%,the mechanical properties of the varnish film are the best.

关 键 词：聚氨酯丙烯酸酯 绝缘浸渍漆 有机硅 改性 

分 类 号：TM215.4[一般工业技术—材料科学与工程] TQ324.2[电气工程—电工理论与新技术]