| 石墨填充高密度聚乙烯基复合材料导热性能的研究 |
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| 引用本文： | 王琪,高峻,王茹,华正坤. 石墨填充高密度聚乙烯基复合材料导热性能的研究[J]. 高等学校化学学报, 1999, 20(9): 1480-1482 |
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| 作者姓名： | 王琪 高峻 王茹 华正坤 |
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| 作者单位： | 四川大学高分子研究所, 成都 610065 |
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| 基金项目： | 中国石油化工科技开发公司，四川省科委应用基础研究基金，四川大学青年基金 |
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| 摘 要： | 选用导热系数较高的无机填料石墨对高密度聚乙烯(HDPE)进行填充改性;采用偶联剂和磨盘型力化学反应器对石墨进行表面处理,提高石墨与聚合物基体的界面相互作用;用自行研制的升温速率测定装置测试材料的导热性能,并研究材料的导热机理;用SEM观察复合材料的微观形态.实验结果表明:经偶联剂处理后,石墨在HDPE中均匀分布;测试试样的上表面温度随时间的变化可用三次多项式T=A0+A1t+A2t2+A3t3拟会;HDPE/石墨复合材料升温速率随石墨含量增加而增大;石墨含量为35％的复合材料最大升温速率为HDPE的1.75倍.
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| 关 键 词： | HDPE 石墨 导热性 复合材料 |
| 收稿时间： | 1998-12-31 |
Studies on the Thermal Conductivity of HDPE/C Composites |
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| WANG Qi,GAO Jun,WANG Ru,HUA Zheng-Kun. Studies on the Thermal Conductivity of HDPE/C Composites[J]. Chemical Research In Chinese Universities, 1999, 20(9): 1480-1482 |
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| Authors: | WANG Qi GAO Jun WANG Ru HUA Zheng-Kun |
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| Affiliation: | Polymer Research Institute of Sichuan University, the State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China |
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| Abstract: | Thermal conductivity of HDPE/C composites and its mechanism were studied through SEM and thermal conductivity measurement. The results show that after being treated with coupling agent through pan-milling, the graphite particles will uniformly disperse in HDPE matrix, the interface interaction between graphite and HDPE enhances quite a lot.The temperature detected on the sample surface vs. time shows an excellent agreement with third-polynomial regression: T = A0+ A1t + A2t2 + A3t3.The thermal conductivity of HDPE/C is much higher than that of HDPE, the temperature-increasing rate of HDPE/C(65/35) composite reaches 1. 75 times of that of HDPE. |
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| Keywords: | HDPE |
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