材料工程Issue(7)：54-57,92,5.
污秽溶液对生物可降解聚乙烯绝缘破坏的影响
Dielectric Breakdown Properties of Biodegradable Polyethylene Film Immersed in Contamination Solution
摘要
Abstract
Eco-friendly insulating materials have been expected to solve severe environmental pollution caused by electric and electronic insulating castoffs. As typical friendly-environmental materials,biodegradable polymers are needed systematical investigation on their electrical properties for the substitute of present insulating materials. Biodegradable polyethylene (BDPE) films were employed as the specimens and high density polyethylene (HDPE) films were selected as the reference. Effects of contamination level on dielectric breakdown properties of BDPE film immersed in artificial saline solutions were investigated by using DC voltage. The breakdown craters were captured by using a monocular-video-zoom microscope. An image-pattern-identification technique was applied to calculate the breakdown area and box dimension of breakdown craters. Obtained results revealed that for both BDPE film and HDPE film, breakdown voltage, breakdown area and box dimension all decrease with increasing the contamination level. By comparing the test results, it showed that under contaminated conditions, breakdown endurance of BDPE film is better than that of HDPE film.关键词
生物可降解/聚乙烯薄膜/污秽程度/绝缘破坏/模式识别/盒子维数Key words
biodegradable polyethylene film/contamination level/dielectric breakdown/pattern identification/box dimension分类
信息技术与安全科学引用本文复制引用
杜伯学,刘勇,孟令飞..污秽溶液对生物可降解聚乙烯绝缘破坏的影响[J].材料工程,2009,(7):54-57,92,5.基金项目
教育部博士点基金 (20040056037) （20040056037）
国家自然科学基金资助项目 (50777048) （50777048）
