| 辐射交联对MWNTs/PE复合材料导电行为的影响 |
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| 引用本文： | 李博,季铁正,李佳,刘文亮.辐射交联对MWNTs/PE复合材料导电行为的影响[J].辐射研究与辐射工艺学报,2011,29(1):12-16. |
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| 作者姓名： | 李博 季铁正 李佳 刘文亮 |
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| 作者单位： | 西北工业大学理学院应用化学系,西安,710129 |
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| 基金项目： | 教育部留学归国人员科研启动基金 |
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| 摘 要： | 本文采用溶液混合、超声波分散的方法,制备了多壁碳纳米管(MWNTs)/高密度聚乙烯(HDPE)、MWNTs/超高分子量聚乙烯(UHMWPE)两种复合材料,并对其进行50、150、300 kGy的60Co γ射线辐照,研究了MWNTs/PE复合材料的辐射交联对电性能的影响.结果表明MWNTs/PE复合材料经过辐射交联后,...
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| 关 键 词： | 多壁碳纳米管 高密度聚乙烯 辐射交联 正电阻/负电阻温度系数 |
The effect of irradiation cross linking on electrical behavior of MWNTs/PE composites |
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| LI Bo,JI Tiezheng,LI Jia,LIU Wenliang.The effect of irradiation cross linking on electrical behavior of MWNTs/PE composites[J].Journal of Radiation Research and Radiation Processing,2011,29(1):12-16. |
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| Authors: | LI Bo JI Tiezheng LI Jia LIU Wenliang |
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| Affiliation: | LI Bo JI Tiezheng LI Jia LIU Wenliang(Department of Applied Chemistry,School of Science,Northwestern Polytechnical University,Xi'an 710129,China) |
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| Abstract: | MWNTs/HDPE composites and MWNTs/UHMWPE composites were prepared by solution blending and ultrasonic dispersion. The composites were irradiated by 60↑Coγ-rays with absorbed dose of 50, 150 or 300 kGy respectively and the effects of radiation cross linking on electrical properties of composites were investigated. The result showed that radiation could increase the volume resistivity of composites at room temperature and both of the positive temperature coefficient （PTC） intensity and the negative temperature coefficient （NTC） effect of MWNTs/HDPE composite could be eliminated when the absorbed dose was 300 kGy. The optimum absorbed dose for 9% S.MWNTs-60100/UHMWPE composite was 150 kGy. |
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| Keywords: | MWNTs HDPE Irradiation cross linking PTC/NTC |
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