炭黑/乙烯-丙烯酸丁酯共聚物半导电屏蔽料制备与性能  

Preparation and Properties of Carbon Black/Ethylene-Butyl Acrylate Copolymer Semi-conductive Shielding Materials

作　　者：杨前程 侯帅 贾利川 鄢定祥[1] 赵莉华[3] 傅明利 李忠明[1] YANG Qiancheng;HOU Shuai;JIA Lichuan;YAN Dingxiang;ZHAO Lihua;FU Mingli;LI Zhongming(College of Polymer Science and Engineering,Sichuan University,State Key Laboratory of Polymer Materials Engineering,Chengdu 610065,China;China Southern Power Grid Research Institute Co.,Ltd.,Guangzhou 510663,China;College of Electrical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川成都610065 [2]南方电网科学研究院有限责任公司,广东广州510663 [3]四川大学电气工程学院,四川成都610065

出　　处：《塑料工业》2022年第7期162-169,176,共9页China Plastics Industry

基　　金：特高压工程技术(昆明、广州)国家工程实验室开放基金项目资助(NELUHV-2021-KF-05)。

摘　　要：基于导电炭黑为填料、乙烯-丙烯酸丁酯共聚物为基体,采用熔融挤出法制备高压电缆半导电屏蔽料,研究了导电炭黑用量对半导电屏蔽料的微观结构、电性能、力学性能和流变性能的影响。结果表明,半导电屏蔽料的结构和性能与导电炭黑的分散分布状态密切相关,且当导电炭黑用量为35%时,半导电屏蔽料具有优异的综合性能,拉伸强度为17.2 MPa,断裂伸长率为167.7%,23℃和90℃体积电阻率分别为10.4和180.4Ω·cm。此外,对比分析35%CB半导电屏蔽料与进口同类产品的结构与性能差异。结果表明配方料和公司料均具备脂肪烃和脂肪族醋酸酯的结构特征,并且体积电阻率和力学性能也相当。Taking conductive carbon black as filler and ethylene-butyl acrylate copolymer as matrix,the semi-conductive shielding materials were prepared by the melt extrusion method.The effects of the amount of carbon black on the microstructure,electrical,mechanical properties and rheological properties of the semi-conductive shielding materials were studied.The research results show that the structure and performance of the semi-conductive shielding material are closely related to the dispersion and distribution of carbon black,and when the amount of carbon black is 35%,the semi-conductive shielding materials has excellent comprehensive performance,the tensile strength is 17.2 MPa,the elongation at break is 167.7%,and the electrical resistivities at 23℃ and 90℃ are 10.4 and 180.4Ω·cm,respectively.In addition,the structure and performance difference between the semi-conductive shielding materials developed and imported similar products are compared and analyzed.The results show that both the formula materials and the company materials have the structural characteristics of aliphatic hydrocarbons and aliphatic acetates,and the electrical resistivity and mechanical properties are also equivalent.

关 键 词：半导电屏蔽料 导电炭黑 微观结构 力学性能 体积电阻率 

分 类 号：TQ316[化学工程—高聚物工业]