Preparation of rGO@Fe3O4 nanocomposite and its application to enhance the thermal conductivity of epoxy resin |
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| Authors: | Jiaqi Geng Yuanli Men Chen Liu Xiang Ge Caideng Yuan |
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| Affiliation: | Department of Polymer Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350 P. R. China.; Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin 300354 China, |
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| Abstract: | In this study, we report a simple method to improve the thermal conductivity of epoxy resin by using new magnetic composites as fillers. The rGO@Fe3O4 nanocomposite has been prepared by a solvothermal method, and its morphology and chemical structure were characterized and analyzed by various characterization methods. Afterwards, the rGO@Fe3O4/EP composite material was obtained in an external magnetic field, in which the rGO@Fe3O4 is uniformly dispersed in the epoxy resin matrix, arranged along the direction of the magnetic field. In addition, the orientation of rGO@Fe3O4 increases with the magnetic field intensity. After doping 30% (wt) rGO@Fe3O4 into epoxy resin and curing under a 500 Gs magnetic field, the rGO@Fe3O4/EP composite material is anisotropic and has a higher thermal conductivity (increased by 196.60%) parallel to the direction of the magnetic field compared to a pure ring oxygen resin.A rGO@Fe3O4 nanocomposite was prepared by a solvothermal method. Then the rGO@Fe3O4/epoxy resin composite was cured in a magnetic field. This shows that rGO@Fe3O4 can enhance the heat-conductivity of epoxy resins. |
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