Open AccessThe effect of a conductive polyaniline/carbon black composite on the performance of a semiconductive layer
Author(s) -
Wang Enmin,
Zhang Sheng,
Wang Ciyao,
Chen Shumei,
Hao Chuncheng,
Lei Qingquan
Publication year - 2022
Publication title -
high voltage
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.732
H-Index - 20
ISSN - 2397-7264
DOI - 10.1049/hve2.12140
Subject(s) - polyaniline , materials science , carbon black , composite number , layer (electronics) , electrical conductor , composite material , conductive polymer , thermal stability , dielectric , electrical resistivity and conductivity , conductivity , thermal conductivity , polymer , chemical engineering , optoelectronics , chemistry , polymerization , electrical engineering , natural rubber , engineering
In this study, conductive polyaniline (PANI) ribbons were introduced to a semiconductive layer to improve the conductivity stability of the layer during thermal expansion and enhance its ability to inhibit charge injection into the insulating layer. To maximise the effect of PANI, PANI and carbon black (CB) were preformed into a uniformly dispersed composite, which was then added to the polymer matrix of the semiconductive layer. The experimental results show that the resistivity of the semiconductive layer containing the PANI/CB composite is more stable during thermal expansion than that of the semiconductive layer only doped with CB. This is attributed to the conductive CB network being enhanced by the PANI ribbons. In addition, due to the unique conductivity mechanism and high dielectric constant of PANI, the semiconductive layer has a strong ability to inhibit space charge injection into the insulating layer.