| iPP/HDPE/CB复合材料的制备及反常的温度-电阻效应 |
| |
| 引用本文： | 郜永娟,刘正英,尹朝露,黄世琳,杨鸣波.iPP/HDPE/CB复合材料的制备及反常的温度-电阻效应[J].高等学校化学学报,2011,32(2):207-209. |
| |
| 作者姓名： | 郜永娟 刘正英 尹朝露 黄世琳 杨鸣波 |
| |
| 作者单位： | 四川大学高分子科学与工程学院高分子材料工程国家重点实验室; |
| |
| 基金项目： | 国家自然科学基金(批准号:2005CB623808)资助 |
| |
| 摘 要： | 本文利用普通熔融挤出法制备了iPP/HDPE/CB复合材料, 分别采用注射成型及压制成型方法得到测试试样. 通过研究复合材料体积电阻率随温度的变化, 考察注塑试样和压制试样的PTC特性及复合材料形态结构与试样PTC特性之间的关系.
|
| 关 键 词： | iPP/HDPE/CB复合材料 注塑成型 压制成型 PTC效应 |
| 收稿时间： | 2010-11-01 |
Preparation and Unusual Temperature-Resistivity Effect of iPP/HDPE/CB Composites |
| |
| GAO Yong-Juan,LIU Zheng-Ying,YIN Chao-Lu,HUANG Shi-Lin,YANG Ming-Bo.Preparation and Unusual Temperature-Resistivity Effect of iPP/HDPE/CB Composites[J].Chemical Research In Chinese Universities,2011,32(2):207-209. |
| |
| Authors: | GAO Yong-Juan LIU Zheng-Ying YIN Chao-Lu HUANG Shi-Lin YANG Ming-Bo |
| |
| Institution: | GAO Yong-Juan,LIU Zheng-Ying,YIN Chao-Lu,HUANG Shi-Lin,YANG Ming-Bo(State Key Laboratory of Polymer Materials Engineering,College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China) |
| |
| Abstract: | iPP/HDPE/CB(mass ratio 70∶30∶4) composites were prepared by injection molding and compression molding. The room\|temperature volume resistivity of iPP/HDPE/CB composites had a little change after a heating-cooling run and the injection molded and compressed samples had unusual and different positive temperature coefficient(PTC) effects under the varying of temperature. The injection molded sample had two little PTC at 130 ℃(around HDPE melting point) and 175 ℃(above iPP melting point), but the compressed sample showed one PTC effect near 136 ℃ and the second PTC effect didn’t appear at the higher temperature. Compared with the compressed samples, the breaking up of conductive network was easier in the injection molded sample. These findings could help us to understand the PTC effect and establish the conductive composites with stable electrical property even if experiencing high temperature. |
| |
| Keywords: | iPP/HDPE/CB composite Injection molding Compression molding PTC effect |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
