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Preparation of Exoergic Insulating Composite Material Using Electrostatic Adsorption Model
Author(s) -
FUJII ATSUHIRO,
HIROTA SHOU,
MURAKAMI YOSHINOBU,
MUTO HIROYUKI,
KAWASHIMA TOMOHIRO,
TAJIRI KUNIHIRO,
SHIOTA HIROKI,
TSURIMOTO TAKAO,
NAGAO MASAYUKI
Publication year - 2017
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22889
Subject(s) - materials science , composite material , adsorption , composite number , particle (ecology) , particle size , thermal conductivity , oxide , chemical engineering , metallurgy , chemistry , organic chemistry , oceanography , engineering , geology
SUMMARY To understand the properties of composite insulating materials, dc breakdown testing and the thermal conductivity measurement of polymethylmethacrylate (PMMA)/aluminum oxide (alumina) composite material created using the electrostatic adsorption method were performed. In the PMMA/alumina sample, which has an alumina as a main particle and a PMMA as an adsorption particle, the dc breakdown strength decreased as the alumina content was increased. It is thought that the increase of the interface between an alumina particle and a PMMA particle leads to a lower dc breakdown strength. The thermal conductivity in PMMA/alumina composite material increased with an increase in the alumina content. From these results, it is suggested that the electrostatic adsorption method can produce the various structures in the material and the insulating materials with various properties such as a higher thermal conductivity and greater tolerable breakdown strength by using a combination of the particle size of the main particle and the adsorption particles.