| PA6/MgO导热复合材料的性能研究 |
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| 引用本文： | 王哲,徐徽,陈康,王超.PA6/MgO导热复合材料的性能研究[J].材料导报,2017,31(Z1):420-422, 428. |
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| 作者姓名： | 王哲 徐徽 陈康 王超 |
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| 作者单位： | 中南大学冶金与环境学院, 长沙 410083,中南大学冶金与环境学院, 长沙 410083,中南大学冶金与环境学院, 长沙 410083,中南大学冶金与环境学院, 长沙 410083 |
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| 基金项目： | 国家自然科学基金(51574286)；中国博士后科学基金(2016M592448) |
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| 摘 要： | 以聚酰胺6(PA6)为基体,以超细氧化镁(MgO)为导热填料,利用硅烷偶联剂对MgO改性,制备了PA6/MgO导热复合材料。考察了不同MgO用量对其导热性能、力学性能以及熔体流动性的影响。结果表明:改性过的MgO在PA6基体中分散均匀,PA6/MgO复合材料的导热系数和拉伸强度随着MgO用量的增加而增大,其中在60%MgO用量时达到最大值;冲击强度、断裂伸长率以及熔体流动性都随着MgO用量的增加而减小。因此选用60%MgO用量制备的PA6/MgO导热复合材料,导热性能最佳。
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| 关 键 词： | 聚酰胺 MgO 导热性 力学性能 |
Research on the Properties of Thermal Conductive PA6/MgO Composites |
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| WANG Zhe,XU Hui,CHEN Kang and WANG Chao.Research on the Properties of Thermal Conductive PA6/MgO Composites[J].Materials Review,2017,31(Z1):420-422, 428. |
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| Authors: | WANG Zhe XU Hui CHEN Kang and WANG Chao |
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| Affiliation: | School of Metallurgy and Environment,Central South University, Changsha 410083,School of Metallurgy and Environment,Central South University, Changsha 410083,School of Metallurgy and Environment,Central South University, Changsha 410083 and School of Metallurgy and Environment,Central South University, Changsha 410083 |
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| Abstract: | Thermal conductive PA6/MgO composites were prepared with polyamide 6 PA6 as the matrix and super fine magnesia MgO as the thermal conductive filler. MgO was modified by silane coupling agent, and the thermal conductive PA6/MgO composites was prepared by the modified MgO and PA6, and its properties were researched. The results show that the modified MgO is well dispersed in the PA6 matrix, and with increasing content of MgO, thermal conductivity and tensile strength of PA6/MgO composites increase, which peak at 60% content of MgO. With increasing content of MgO, the impact strength, elongation at break and melt flow decrease. Therefore, when content of MgO is 60%, the thermal conductivity of thermal conductive PA6/MgO composites is the best. |
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| Keywords: | PA6 MgO thermal conductivity mechanical property |
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