电缆绝缘用LDPE的结构与性能Structure and Performance of LDPE for Insulated Cable Resin
段雪蕾,任冬雪,李亚飞,刘聪云,孙小杰
摘要(Abstract)：
选用3种国内商品化的电缆用低密度聚乙烯(LDPE),利用凝胶渗透色谱仪、升温淋洗仪、红外光谱仪、差示扫描量热仪研究了其链结构和交联性能,探讨了相对分子质量及其分布、链支化、双键等因素对树脂结晶行为和交联性能的影响。结果表明:支链含量越少,亚甲基序列越长,结晶能力越强,其结晶度越高;端双键含量越高,其交联反应速率越快;凝胶含量高可能与树脂相对分子质量大、长支链含量高有关。
关键词(KeyWords)： 低密度聚乙烯;结构;绝缘料;交联
基金项目(Foundation): 北京市科委项目(Z181100005218004)
作者(Author): 段雪蕾,任冬雪,李亚飞,刘聪云,孙小杰
DOI: 10.19690/j.issn1004-3055.20200344
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