China Plastics ›› 2025, Vol. 39 ›› Issue (12): 46-50.DOI: 10.19491/j.issn.1001-9278.2025.12.008

• Materials and Properties • Previous Articles     Next Articles

Effect of acetylene carbon black on performance of semi⁃conductive shielding materials for high⁃voltage cables

MA Zhihui1(), JIANG Zhihang1, YANG Ningning1, SUO Rong1, YU Yangtao1, CAO xinxin2()   

  1. 1.Jiaozuo Hexing Chemical Technology Co,Ltd,Jiaozuo 454000,China
    2.Henan Polytechnic University,Jiaozuo 454000,China
  • Received:2024-12-13 Online:2025-12-26 Published:2025-12-22

Abstract:

A novel semi⁃conductive shielding material for high⁃voltage cables was prepared with ethylene⁃butyl acrylate copolymer (EBA) as matrix and carbon black (CB) as a conductive material via melt blending using a torque rheometer. This study systematically investigated the effects of acetylene carbon black (ACB) type (G30 and H140G, differing in specific surface area) and content on the volume resistivity, mechanical properties, and flow properties of the composites. The dispersion of ACB and furnace carbon black (CCB) within the EBA matrix was characterized by scanning electron microscopy, and a comparative analysis of the final material properties was conducted. Experimental results demonstrated that a 35 wt% loading of either ACB type yielded optimal volume resistivity, with values of 21.89 Ω·cm for G30 and 7.86 Ω·cm for H140G. Furthermore, the EBA/ACB composites exhibited significantly superior electrical conductivity compared to their EBA/CCB counterparts.

Key words: ethylene?butyl acrylate, acetylene carbon black, semi?conductive shielding materials, volume resistivity, mechanical property

CLC Number: