甲基丙烯酸锌在氯化聚乙烯/三元乙丙橡胶绝缘料中的应用  

Application of Zinc Methacrylate in Chlorinated Polyethylene/Ethylene-Propylene-Diene Rubber Insulation

作　　者：邓一权 柯凯[2] DENG Yiquan;KE Kai(Sichuan CHNDO Cable Co.,Ltd.,Dazhou 635000,China;College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川川东电缆有限责任公司,达州635000 [2]四川大学高分子科学与工程学院,成都610065

出　　处：《电线电缆》2024年第6期20-25,30,共7页Wire & Cable

摘　　要：为提升氯化聚乙烯(CM)/三元乙丙橡胶(EPDM)共混绝缘胶料(简称绝缘胶料)的性能,研究了甲基丙烯酸锌(ZDMA)添加方式与用量、过氧化物用量等对绝缘胶料硫化特性、加工性能和物理机械性能的影响。结果表明,在过氧化二异丙苯硫化体系中,ZDMA相较于常用的交联助剂,具有更高的硫化效率,对绝缘胶料机械性能的影响较大。当ZDMA用量为4份且氧化锌(ZnO)/甲基丙烯酸(MMA)的摩尔比为0.8时,原位生成法合成的绝缘胶料物理机械性能和加工性能最佳;当ZDMA用量超过5份时,绝缘胶料容易出现粘模现象,影响加工性能。文中研究可为高性能绝缘电缆胶料的生产制备提供参考。To enhance performance of chlorinated polyethylene(CM)/ethylene-propylene-diene rubber(EPDM) blend insulating compounds(a bbreviated as insulating compounds),the effects of addition method and dosage of zinc methacrylate(ZDMA),amount of peroxide,on vulcanization characteristics,processing performance,and physical mechanical properties of insulating compounds were investigated.Results showed that in dicumyl peroxide vulcanization system,ZDMA had a higher vulcanization efficiency compared to commonly used crosslinking agents and had a significant impact on mechanical properties of vulcanized rubber.When the dosage of ZDMA was 4 parts and the molar ratio of zinc oxide(ZnO) to methyl methacrylate(MMA) was 0.8,physical mechanical properties and processing performance of in-situ synthesized insulating compounds were optimal;when the dosage of ZDMA exceeds 5 parts,insulating compounds were prone to mold sticking,affecting processing performance.The research could provide reference for production and preparation of high-performance insulating cable compounds.

关 键 词：甲基丙烯酸锌 原位合成 氯化聚乙烯/三元乙丙橡胶绝缘胶料 物理机械性能 

分 类 号：TQ333.7[化学工程—橡胶工业]