炭黑对过氧化物交联聚乙烯性能影响的研究

玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (6): 44-47.

炭黑对过氧化物交联聚乙烯性能影响的研究

杨长龙¹,郑薇²,卞俭俭³

1.国网沈阳供电公司,沈阳110003;
2.国网营口供电公司,营口115000;
3.上海新上化高分子材料有限公司技术中心,上海201314

收稿日期:2016-02-17 出版日期:2016-06-28 发布日期:2016-06-28
作者简介:杨长龙(1964-),男,高级工程师,主要从事电线电缆、特种导线的材料研制及应用方面的研究,longer2599@126.com。

THE EFFECTS OF CARBON BLACK ON THE PROPERTY OF PEROXIDECROSSLINKED POLYETHYLENE

YANG Chang-long¹, ZHENG Wei², BIAN Jian-jian³

1.State Grid Shenyang Power Supply Company,Shenyang 110003, China;
2.State Grid Yingkou Power Supply Company,Yingkou 115000, China;
3.Technical Center of Shanghai New Shanghua Polymer Material Co., Ltd., Shanghai 201314, China

Received:2016-02-17 Online:2016-06-28 Published:2016-06-28

摘要/Abstract

摘要： 以低密度聚乙烯为基料,炭黑、过氧化二异丙苯和抗氧剂为助剂,制备出了不同炭黑含量的过氧化物交联聚乙烯(XLPE)绝缘材料,并对该材料的力学性能、热老化性能、耐候性能、绝缘性能等多项性能进行了分析和测试,评价了炭黑对XLPE绝缘材料综合性能的影响。研究结果表明,随着炭黑含量的增加(0~2.5%),XLPE力学性能变化不大,耐候性能迅速增强,介电击穿强度和体积电阻率逐渐下降,介电常数和介电损耗不断增大。当炭黑含量为1.8%时,绝缘性能和耐候性能达到最佳平衡。研究还发现,炭黑和某些含硫酚类抗氧剂复配使用时,对过氧化物交联聚乙烯的耐高温热老化性能有明显促进作用。

关键词: 炭黑, 交联聚乙烯, 过氧化物, 性能

Abstract: Peroxide-crosslinked polyethylene (XLPE) was obtained with LDPE as base material, carbon black (CB), dicumyl peroxide (DCP) and antioxidant as assistants. The influences of CB content on XLPE′s properties including mechanics, electricity, thermal stability and weather resistance were studied by tension machine, insulating oil dielectric tester, schering bridge, high resistance meter,thermal aging oven,Xenon weatherometer et al. It was found that,with increasing of concentration of carbon black, mechanical property had no obvious change; weather resistance were improved notably; electric strength and volume resistivity gradually decreased;relative permittivity and dielectric dissipation factor increased obviously. When carbon black content was 1.8%, the insulating property and weather resistance approached optimal balance. And, using compounds of carbon black and certain sulfur-containing antioxidants, the thermal aging property of XLPE was significantly improved.

Key words: carbon black, XLPE, peroxide, properties

中图分类号:

TB332

杨长龙,郑薇,卞俭俭. 炭黑对过氧化物交联聚乙烯性能影响的研究[J]. 玻璃钢/复合材料, 2016, 0(6): 44-47.

YANG Chang-long, ZHENG Wei, BIAN Jian-jian. THE EFFECTS OF CARBON BLACK ON THE PROPERTY OF PEROXIDECROSSLINKED POLYETHYLENE[J]. Fiber Reinforced Plastics/Composites, 2016, 0(6): 44-47.

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