| 绝缘导热Si_3N_4/LLDPE复合材料的研制 |
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| 引用本文： | 安群力,齐暑华,周文英,邵时雨.绝缘导热Si_3N_4/LLDPE复合材料的研制[J].合成树脂及塑料,2008,25(1):40-43. |
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| 作者姓名： | 安群力 齐暑华 周文英 邵时雨 |
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| 作者单位： | 1. 西北工业大学理学院应用化学系,陕西,西安,710072
2. 西安交通大学电力设备电气绝缘国家重点实验室,陕西,西安,710049 |
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| 摘 要： | 用粉末法制备了Si3N4增强线型低密度聚乙烯(LLDPE)导热材料,研究了填料Si3N4对LLDPE熔融温度、结晶度、热导率、电绝缘性能及力学性能的影响.结果表明,加入Si3N4粒子,提高了LLDPE的熔融温度和结晶度;当w(Si3N4)为30%时,体系热导率达基体的6～7倍,热导率随Si3N4粒径的减小而增大,此时体系仍然具有较高电阻率及良好的介电性能,但力学性能明显下降.
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| 关 键 词： | 线型低密度聚乙烯 氮化硅 热导率 电绝缘 粉末混合 |
| 文章编号： | 1002-1396（2008）01-0040-04 |
| 收稿时间： | 2007-09-01 |
| 修稿时间： | 2008-01-07 |
Insulating thermal conductive Si_3N_4/LLDPE composite plastics |
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| An Qunli,Qi Shuhua,Zhou Wenying,Shao Shiyu.Insulating thermal conductive Si_3N_4/LLDPE composite plastics[J].China Synthetic Resin and Plastics,2008,25(1):40-43. |
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| Authors: | An Qunli Qi Shuhua Zhou Wenying Shao Shiyu |
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| Affiliation: | An Qunli~1,Qi Shuhua~1,Zhou Wenying~2,Shao Shiyu~1 (1.Department of Applied Chemistry,School of Science,Northwestern Polytechnieal University,Xi\'an 710072,China,2.State Key Laboratory of Electrical Insulation , Power Equipment,Xi\'an Jiaotong University,Xi\'an 710049,China) |
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| Abstract: | A kind of thermal conductive plastic of linear low density polyethylene(LLDPE)reinforced with Si_3N_4 as filler was prepared by powder mixing process.The effects of Si_3N_4 on melting temperature,crystallinity,thermal conductivity,electrical insulating property and mechanical properties of LLDPE were studied.The results indicate that the addition of Si_3N_4 particles gives rise to an increment in melting temperature and in crystallinity of the LLDPE composite.The thermal conductivity of the composite rises ... |
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| Keywords: | linear low density polyethylene silicon nitride thermal conductivity electrical insulation powder mixing |
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