Degradation of polymeric materials exposed to corona discharges

被引：50

作者：

Zhu, Yong ^{[1
]}

Otsubo, Masahisa ^{[1
]}

Honda, Chikahisa ^{[1
]}

机构：

[1] Miyazaki Univ, Dept Elect & Elect Engn, Miyazaki 8892192, Japan

来源：

POLYMER TESTING | 2006年 / 25卷 / 03期

基金：

日本学术振兴会;

关键词：

polymer; silicone rubber; EVA; corona discharge; FTIR; SEM; degradation;

D O I：

10.1016/j.polymertesting.2006.01.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A study of polymeric materials exposed to corona discharges is presented. A needle-plate electrode system was used to generate a corona discharge and the degradation of silicone rubber (SR) and ethylene vinyl acetate (EVA) copolymer specimens was investigated. After the corona discharge treatment, physicochemical analyses of the aged specimens were carried out using Fourier transformed infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). Obvious cracks and mechanical damage caused by corona discharges appeared on the surface of the aged specimens. Hydrophilic OH groups, which are byproducts of aging. were formed instead of hydrophobic CH groups on the surfaces of SR and EVA aged by corona discharges, resulting in the reduction of the hydrophobicity of the materials. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：313 / 317

页数：5

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