| 制备工艺对PTC复合材料阻温特性的影响 |
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| 引用本文： | 沈烈,徐建文.制备工艺对PTC复合材料阻温特性的影响[J].现代塑料加工应用,2000,12(3):5-8. |
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| 作者姓名： | 沈烈 徐建文 |
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| 作者单位： | 浙江大学，浙江大学，浙江大学，浙江大学 杭州，310027，杭州，310027，杭州，310027，杭州，310027 |
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| 摘 要： | 研究了密炼工艺对聚乙烯／炭黑复合材料室温电阻率及ＰＴＣ强度的影响，针对一定配方找到了最佳密炼工艺条件。电子束辐照交联能有效消除ＮＴＣ现象和提高材料的电性能循环稳定性，有助于制备低电阻率、高ＰＴＣ强度并具有较好电性能循环稳定及热敏开关特性和电路保护元件。
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| 关 键 词： | 聚乙烯 炭黑 PTC效应 辐照交换 复合材料 阻温性 |
EFFECT OF PROCESSING CONDITIONS ON THE RESISTIVITY TEMPERATURE DEPENDENCE OF PCT COMPOSITES |
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| Shen Lie Xu Jianwen,Cao Suhua Yi Xiaosu.EFFECT OF PROCESSING CONDITIONS ON THE RESISTIVITY TEMPERATURE DEPENDENCE OF PCT COMPOSITES[J].Modern Plastics Processing and Applications,2000,12(3):5-8. |
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| Authors: | Shen Lie Xu Jianwen Cao Suhua Yi Xiaosu |
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| Abstract: | The effects of milling condition on the room temperature resistivity and positive temperature coefficient (PTC) resistivity intensity of polyethylene/carbon black(PE/CB) composites were studied. The negative temperature coefficient (NTC) effect can be eliminated and the electrical reproducibility of the composites can be increased by electron beam irradiation. Crosslinking was a promising method for stabilizing the electrical properties of low resistance and high PTC intensity PE/CB composites for application as overcurrent protectors. |
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| Keywords: | polyethylene carbon black PTC effect crosslinking |
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