导电碳黑/乙烯-醋酸乙烯共聚物复合物稳定性研究  

A Study on Stabilization of Polymer PTC Conductive Composites

作　　者：张华明[1] 刘光耀[1] 陈川[1] 卢涛[1] 陈天锡 刘国良 张纯忠[1] 杨克斌[1] 

机构地区：[1]中国工程物理研究院应用技术研究中心

出　　处：《功能材料》1998年第4期429-431,共3页Journal of Functional Materials

基　　金：中国工程物理研究院基金

摘　　要：本文研究了导电碳黑／乙烯－醋酸乙烯酯共聚物（ＣＢ／ＥＶＡ）的半导电复合物电阻的热氧稳定性与辐照剂量的关系，并对辐照样品作了ＤＳＣ，ＩＲ等分析。结果表明，合适的辐照剂量和复合热氧稳定剂体系能有效地提高半导电ＣＢ／ＥＶＡ复合物电阻的热氧稳定性。The radiation effect of CB/EVA conductive composites was studied by different radiation doses. The experimental results showed that negative temperature coefficient (NTC) effects of resistance of CB/EVA above Tm were eliminated when the radiation dose was 150kGy. The multiple stabilizers added to the CB/EVA conductive composites and made the conductive composites had the excellent heatoxidation stabilization. The composites containing multiple stabilizers had good electrical reproducibility.

关 键 词：辐照剂量 PTC行为 CB/EVA 热氧稳定性 共聚物 

分 类 号：O631.2[理学—高分子化学]