Improving the ILSS and impact strength of CFRTP by introducing MWNCT anchored on the carbon fiber
발표자
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초록
내용
In order to improve the mechanical, electrical, and thermal properties of CFRP, nano-carbon fillers such as CNT and graphene are incorporated with the matrix resin. However, it is difficult to apply to a thermoplastic resin or CFRTP due to the high melting point and viscosity. In this study, MWCNT-anchored carbon fiber was developed and CFRTP was fabricated to which it was applied. A flame and acid treatment were used to introduce functional groups on the surface of carbon fibers and MWCNTs, respectively. The MWCNTs were then anchored on the carbon fiber surface by esterification with a sizing agent. Mechanical properties including tensile, impact strength and ILSS of the CFRTP was investigated. The MWCNTs anchored on the carbon fiber surface effectively improve the interfacial bonding with the thermoplastic matrix without increasing the viscosity. As a results, the impact resistance and ILSS of the CFRTPs were significantly improved by the anchored MWCNTs on the carbon fiber.