Preparation of rGO@Fe3O4 nanocomposite and its application to enhance the thermal conductivity of epoxy resin

被引:31
作者
Geng, Jiaqi [1 ]
Men, Yuanli [1 ]
Liu, Chen [1 ]
Ge, Xiang [2 ]
Yuan, Caideng [1 ]
机构
[1] Tianjin Univ, Sch Chem Engn & Technol, Dept Polymer Sci & Engn, Tianjin 300350, Peoples R China
[2] Tianjin Univ, Sch Mech Engn, Minist Educ, Key Lab Mech Theory & Equipment Design, Tianjin 300354, Peoples R China
关键词
MECHANICAL-PROPERTIES; POLYMER COMPOSITES; GRAPHENE; NANOPARTICLES; DEPENDENCE; NANOSHEETS;
D O I
10.1039/d1ra02254g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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.
引用
收藏
页码:16592 / 16599
页数:8
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