Structure, mechanical and thermal properties of BMI/E-44/CNTs ternary composites via amination method
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2017年第10期
论文作者：Youliang Cheng Bingbing Xia Changqing Fang Lu Yang
文章页码：1187 - 1194
摘 要：Multi-walled carbon nanotubes（CNTs） were modified by an amination treatment with hexamethylenediamine（HMD）, and then bismaleimide（BMI）/epoxy（E-44）/CNTs ternary composites were prepared using modified CNTs as the reinforcement via a simple mixing and curing molding method. The results show that the surfaces of CNTs are grafted polymer with the thickness of 3 nm and the dispersity of surface grafted carbon nanotubes（SG-CNTs） in the resin composites can be improved. The prepared composites contain C-C, C-N, C=O and-COOH groups and can keep a smooth surface. In addition, the composites have the flexural strength of 152 MPa, the tensile strength of 73 MPa and the impact strength of 87 k J m-2,respectively, when the weight ratio of BMI to E-44 is 1:8 and the content of SG-CNTs is 2 wt%. However,the thermal stability of the composites with SG-CNTs is a little lower than that of the composites without SG-CNTs.
Youliang Cheng，Bingbing Xia，Changqing Fang，Lu Yang
Packaging Engineering and Digital Media Technology, Xi’an University of Technology
摘 要：Multi-walled carbon nanotubes（CNTs） were modified by an amination treatment with hexamethylenediamine（HMD）, and then bismaleimide（BMI）/epoxy（E-44）/CNTs ternary composites were prepared using modified CNTs as the reinforcement via a simple mixing and curing molding method. The results show that the surfaces of CNTs are grafted polymer with the thickness of 3 nm and the dispersity of surface grafted carbon nanotubes（SG-CNTs） in the resin composites can be improved. The prepared composites contain C-C, C-N, C=O and-COOH groups and can keep a smooth surface. In addition, the composites have the flexural strength of 152 MPa, the tensile strength of 73 MPa and the impact strength of 87 k J m-2,respectively, when the weight ratio of BMI to E-44 is 1:8 and the content of SG-CNTs is 2 wt%. However,the thermal stability of the composites with SG-CNTs is a little lower than that of the composites without SG-CNTs.
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