| 氧化锌晶须/环氧树脂导热绝缘复合材料的制备与性能 |
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| 引用本文： | 周柳,熊传溪,董丽杰. 氧化锌晶须/环氧树脂导热绝缘复合材料的制备与性能[J]. 高分子材料科学与工程, 2009, 25(5) |
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| 作者姓名： | 周柳 熊传溪 董丽杰 |
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| 作者单位： | 武汉理工大学材料科学与工程学院,湖北,武汉,430070;武汉理工大学材料科学与工程学院,湖北,武汉,430070;武汉理工大学材料科学与工程学院,湖北,武汉,430070 |
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| 摘 要： | 以环氧树脂(E-44)为聚合物基体,四针状氧化锌晶须(ZnOw)为填充材料,制备了氧化锌晶须/环氧树脂导热绝缘复合材料,研究了ZnOw含量对复合材料的导热性能、电性能的影响,并用扫描电子显微镜对断口形貌进行了观察。结果表明,较少量ZnOw的加入(体积分数<10%),复合材料的导热性能得到有效改善,但仍维持了聚合物材料所具有的电绝缘和低介电常数、低介电损耗的特点。其中当ZnOw体积分数为10%时,ZnOw/EP复合材料的热导率达到0.68W/(m·K),相比纯环氧树脂提高了3倍。
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| 关 键 词： | 环氧树脂 氧化锌晶须 热导率 体积电阻 介电常数 介电损耗 |
Preparation and Performance on Insulating Thermal Conductive ZnO Wisker/Epoxy Composite |
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| ZHOU Liu,XIONG Chuan-xi,DONG Li-jie. Preparation and Performance on Insulating Thermal Conductive ZnO Wisker/Epoxy Composite[J]. Polymer Materials Science & Engineering, 2009, 25(5) |
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| Authors: | ZHOU Liu XIONG Chuan-xi DONG Li-jie |
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| Affiliation: | School of Materials Science and Engineering;Wuhan University of Technology;Wuhan 430070;China |
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| Abstract: | A kind of composite was prepared,using ZnO wisker as filler and epoxy as polymer matrix.The effect of volume fraction of ZnO wisker on the thermal conductivity,electricity of the composite was investigated.The fracture surfaces of the broken specimens were also examined by scanning electron microscopy(SEM).Experimental results show that with a little filler adding in,thermal conductivity of the composite is improved while the composite still keep the relatively insulation,low dielectric constant and low die... |
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| Keywords: | epoxy ZnO wisker thermal conductivity volume resistivity dielectric constant dielectric loss |
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