水溶性热固聚酯漆包线漆的制备及性能研究  

Preperation and Properties of Water-soluble Polyester Wire Enamel

作　　者：张恒光 廖和安 张笑瑞 倪江峰[2] ZHANG Hengguang;LIAO Hean;ZHANG Xiaorui;NI Jiangfeng(Wuxi Toly Electric Works Co.,Ltd.,Wuxi 214196,China;Soochow University,Suzhou 215006,China;Harbin University of Science and Technology,Harbin 150040,China)

机构地区：[1]无锡统力电工股份有限公司,江苏无锡214196 [2]苏州大学,江苏苏州215006 [3]哈尔滨理工大学,黑龙江哈尔滨150040

出　　处：《绝缘材料》2021年第8期34-38,共5页Insulating Materials

摘　　要：以水溶性聚酯树脂为基体,制备高交联密度的热固性聚酯漆包线漆。通过聚酯树脂中软硬单体比例调控漆液的附着力,通过对聚酯树脂支化度的调整提高漆液的电气强度,借助外加增稠剂提高漆液上漆的工艺性。结果表明:当聚酯树脂的水溶性功能单体摩尔分数为6%,支化功能单体摩尔分数为14%,软硬单体的摩尔比为2∶1时,以其为基体的漆包线漆综合性能最佳;固化剂的最佳质量分数为3.0%;当增稠剂质量分数为0.4%时,漆包线漆的断裂伸长率为40%,电气强度为40 kV/mm。最终制得的漆包线上漆厚度为100μm,击穿电压为4 kV,具有很好的耐热性,在新型传感技术与设备本体一体化变压器中具有潜在的应用价值。A thermosetting polyester wire enamel with high crosslinking density was prepared by using watersoluble polyester resin as matrix. The adhesion of paint film was regulated by the ratio of hard and soft monomer in polyester resin, the electric strength of paint film was improved by adjusting the branching degree of polyester resin, and the technology of paint film was improved by adding thickening agent. The results show that when the mole fraction of water-soluble functional monomer is 6%, the mole fraction of branched functional monomer is14%, and the mole ratio of soft and hard chain segments in the remaining monomer is 2∶1, the wire enamel with the water-soluble thermosensitive polyester as matrix has the best comprehensive performance. The optimum mass fraction of curing agent is 3.0% of resin mass. When the mass fraction of thickening agent is 0.4% of the total resin, the elongation at break of the enameled wire is 40%, and the electric strength is 40 kV/mm. The final coating thickness of the enameled wire is 100 μm, its breakdown voltage is 4 kV, and its heat resistance is good, which has potential application value in the new sensor technology and equipment body integrated transformer.

关 键 词：水溶性 漆包线漆 附着力 电气强度 

分 类 号：TM214[一般工业技术—材料科学与工程]