炭黑填充EVA/HDPE发泡材料的阻温特性

doi:10.19491/j.issn.1001-9278.2009.12.012

中国塑料 ›› 2009, Vol. 23 ›› Issue (12): 52-55 .DOI: 10.19491/j.issn.1001-9278.2009.12.012

炭黑填充EVA/HDPE发泡材料的阻温特性

李继新;王立岩;赵新宇;李川;李素君

沈阳工业大学

收稿日期:2009-09-09 修回日期:1900-01-01 出版日期:2009-12-26 发布日期:2009-12-26

Resistivity-Temperature Behavior of CB-Filled EVA/HDPE

Received:2009-09-09 Revised:1900-01-01 Online:2009-12-26 Published:2009-12-26

摘要/Abstract

摘要： 采用开炼共混、模压发泡的方法制备了特导炭黑填充乙烯-乙酸乙烯酯（EVA）/高密度聚乙烯（PE-HD）发泡导电复合材料。考察了 Blends of ethylene-vinyl acetate (EVA)/high-density polyethylene (PE-HD) was filled with specially conductive carbon black（HG-1P）forming a foam conductive composite via open-calendaring and mold foaming. The effect of the composition on the percolation threshold, pore structures, and temperature-resistance behavior were investigated. When the mass proportion of EVA to PE-HD was 80 to 20, the content of specially conductive carbon black was 10 wt %, the content of AC was 4 wt %，and the cross-linker DCP was 0.5 wt %, the composite showed a fine pore structure and good switching characteristics, a clear negative temperature coefficient (NTC) was observed.

关键词: 乙烯-乙酸乙烯酯, 高密度聚乙烯, 炭黑, 发泡材料, 阻温特性

Abstract: Abstract: The foamed conductive composites of specially conductive carbon black（HG-1P）-filled ethylene-vinyl acetate (EVA)/high-density polyethylene (HDPE) were prepared by the methods of blending on the mixer and mold foaming in this thesis. The vadose threshold value, bubble structures, and resistivity-temperature behavior of the composites and the influences of different proportion of EVA/LDPE, the foamer and the cross-linker on the electric behavior of the composites were investigated.The results showed that EVA/HDPE conductive foamed composites filled with HG-1P had ideal bubble structures and the composites had good switching characteristics, and displayed clear negative temperature coefficient (NTC) effect through resistivity tests at the increasing temperature.

Key words: ethylene-vinyl acetate, high-density polyethylene, carbon black, foamed material, resistivity-temperature behavior

中图分类号:

O482

李继新, 王立岩, 赵新宇, 李川, 李素君. 炭黑填充EVA/HDPE发泡材料的阻温特性[J]. 中国塑料, 2009, 23(12): 52-55 .

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炭黑填充EVA/HDPE发泡材料的阻温特性

Resistivity-Temperature Behavior of CB-Filled EVA/HDPE

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