摘要
用废旧聚酯为原料生产漆包线绝缘漆的较佳工艺条件为 :醇解温度 2 4 0～ 2 4 5℃ ,回流时间 7～ 7.5h,缩聚反应时间为 2 .5～ 3h,真空度为 0 .4～ 0 .94k Pa,酚解时间为 2 h。产品中原料配比为废旧聚酯片 :甘油 :乙二醇 :三混甲酚 :二甲苯 :钛酸丁酯为 30 9:1 2 0 :78:42 0 :2 70 :1 5,回流中乙二醇加入量为废旧聚酯片的 38.8% ,回收率为 96%。
The more favourable technical conditions of producing enamel-covered wire insulating varnish with the waste polyester are determined,The temperature of alcoholysis is 240～245℃,time of circulating reflux is 7～7.5h ,time of polycondensate reaction is 2.5～3h ,vacuum degree is 0.4～0.94Kpa ,phenolysis time is 2h. Ratio of raw material in production is as follow waste polyester : glycerine : ethylene glycol : mixture cresol : dimethyl benzene : tetrabutyl titanate is 309:120:78:420:270:15. Rate of ethylene glycol...
出处
《山东工程学院学报》
CAS
2000年第4期10-12,共3页
Journal of Shandong Institute of Technology
基金
山东省教委科技发展计划资助项目!(T99-0 5 )
