XLPE绝缘高压电缆屏蔽料树脂关键性能研究  

Research on key properties of XLPE insulated high voltage cable shielding resin

作　　者：徐曙 章彬 胡晨 伍国兴 黎小林 傅明利 侯帅 朱闻博 XU Shu;ZHANG Bin;HU Chen;WU Guoxing;LI Xiaoin;FU Mingi;HOU Shuai;ZHU Wenbo(Shenzhen Power Supply Bureau,Shenzhen 518000,China;Electric Power Research Institute,China Southern Power Grid Co.,Ltd.,Guangzhou 510663,China;State Key Laboratory of HVDC,Guangzhou 510663,China)

机构地区：[1]深圳供电局有限公司,广东深圳518000 [2]南方电网科学研究院有限责任公司,广东广州510663 [3]直流输电技术国家重点实验室,广东广州510663

出　　处：《绝缘材料》2023年第2期91-95,共5页Insulating Materials

基　　金：南方电网公司科技项目(SZKJXM20190588);南网科研院“高潜计划”项目(SEPRI-K206002)。

摘　　要：为进一步明确半导电屏蔽料中基体树脂的关键性能,选用国内外3种不同型号的半导电屏蔽料,分别对其微观结构进行表征,并对其电气、力学以及流变性能进行测试。结果表明:各屏蔽料的体积电阻率均较低,且电阻率温度稳定性均良好。进口屏蔽料基体树脂中的丙烯酸酯含量更高,具有更大的极性,材料的力学韧性更优。同时,进口屏蔽料的假塑性更强,在一定剪切速率范围内可以通过适当提高剪切速率以降低材料的黏度,提高流动性从而降低能耗,提高生产效率。基于实验分析结果,提出将材料的极性大小或酯含量,作为反映半导电屏蔽料中基体树脂的关键性参数。In order to further clarify the key properties of matrix resin in semiconducting shielding materials, three different types of semiconducting shielding materials at home and abroad were selected, and their microstructure characteristic,mechanical properties, electrical properties, and rheological properties were tested. The results show that the volume resistivity of each shielding material is low, and the temperature stability of resistivity is good. The acrylate content of the imported shielding material matrix resin is higher, polarity is greater, and the mechanical toughness is better. At the same time, the pseudoplasticity of the imported shielding material is stronger. In a certain shear rate range, the viscosity of the material can be reduced by increasing the shear rate appropriately, and the energy consumption can be reduced by increasing the fluidity, and then the production efficiency can be improved. Based on the results of the experimental analysis, the polarity or ester content of the material is proposed as a key parameter to reflect the matrix resin in the semiconductive shielding material.

关 键 词：半导电屏蔽料 基体树脂 微观结构表征 力学性能 电气性能 流变性能 

分 类 号：TM215[一般工业技术—材料科学与工程] TM247[电气工程—电工理论与新技术]