后吸收法交联聚乙烯制备及存储性研究  

Preparation and Storage Performance of Soaking Crosslinked Polyethylene

作　　者：袁宝 周玉梅 李维康 张翀 张翔 吴平峰 张东清 YUAN Bao;ZHOU Yu-mei;LI Wei-kang;ZHANG Chong;ZHANG Xiang;WU Ping-feng;ZHANG Dong-qing(Anhui Chuzhou Dewei Advanced Materials Co., Ltd., Chuzhou 239000, China;Global Energy Interconnection Research Institute, Beijing 102211, China)

机构地区：[1]安徽滁州德威新材料有限公司,安徽滁州239000 [2]全球能源互联网研究院有限公司,北京102211

出　　处：《电线电缆》2018年第2期31-34,共4页Wire & Cable

基　　金：国家电网公司科技项目(5455DW160006)

摘　　要：采用后吸收法制备过氧化物交联聚乙烯,利用凝胶试验、拉伸试验、热延伸、红外光谱、差示扫描量热仪测试交联聚乙烯绝缘料的性能并分析其存储安全性。结果表明:可交联绝缘料中抗氧剂的适宜用量为0.2%~0.3%;随交联剂浓度增长绝缘料凝胶率增加,抗拉强度、热延伸性能得到提高,断裂伸长率下降;因国产树脂结晶度较高,导致国产聚乙烯绝缘料的存储安全性弱于进口料。Peroxide crosslinked polyethylene was prepared by soaking processes.The properties and storage safety of crosslinked polyethylene insulation materials were characterized by means of gel fraction,tensile test,thermal elonga-tion,microscopic infrared spectrum and differential scanning calorimeter.The results showed that the suitable dosage of antioxidant should be0.2%to0.3%.The gel fraction,tensile strength,thermal elongation performance increases with increasing of crosslinking agent concentration,and the elongation at break decreases.The storage safety was dis-cussed by analyzing the crystallinity of polyethylene resin.

关 键 词：后吸收 交联聚乙晞绝缘料 凝胶率 热延伸 存储安全性 

分 类 号：TM215.1[一般工业技术—材料科学与工程]