南方电网技术2023，Vol.17Issue(12)：28-35,8.DOI:10.13648/j.cnki.issn1674-0629.2023.12.004
存储方式对可交联聚乙烯料介电性能的影响
Effect of Storage Mode on Dielectric Properties of Cross-Linkable Polyethylene
摘要
Abstract
The performance change and action mechanism of cross-linkable polyethylene material for cable insulation during storage are still unclear.This article is based on two storage methods commonly used in laboratories—tin sealant and plastic sealant.By characterising the dielectric properties and crystalline structure of XLPE samples prepared from the new cross-linkable polyethylene granules and the granules of same brand with two years'storage by the above two storage methods,the effect and mechanism of stor-age on the properties of cross-linkable polyethylene material are studied.The experimental results show that the change in properties of the cross-linkable polyethylene material during storage is due to the decomposition of the cross-linking agent contained in granules.The cross-linking degree of the XLPE samples obtained from the granules after shelving for two years decreased significantly,the thermal extension properties deteriorated,the crystalline properties and crystalline structure are slightly improved,and the dielectric properties are improved.With the effect of light,the decomposition of the cross-linking agent is more serious,and the performance changes are the most obvious.关键词
可交联聚乙烯/DCP自分解/存储方式/介电性能Key words
cross-linkable polyethylene/self-decomposition of DCP/storage mode/dielectric property分类
信息技术与安全科学引用本文复制引用
巩俊强,章彬,徐曙,张成巍,展云鹏,陈宇奇,侯帅,惠宝军,朱闻博..存储方式对可交联聚乙烯料介电性能的影响[J].南方电网技术,2023,17(12):28-35,8.基金项目
中国南方电网有限责任公司科技项目(SZKJXM20190588) （SZKJXM20190588）
国家自然科学基金资助项目(52077171). Supported by the Science and Technology Project of China Southern Power Grid Co.,Ltd.(SZKJXM20190588) （52077171）
the National Natural Science Foundation of China(52077171). （52077171）
