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Preparation of High-Performance Carbon Fiber-Reinforced Epoxy Composites by Compression Resin Transfer Molding

1,2, 3,*, 1, 4, 1, 1,2, 1,2 and 1,2,*
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
Key Laboratory of Shanghai City for Lightweight Composites, Donghua University, Shanghai 201620, China
Research Center for Analysis and Measurement, Donghua University, Shanghai 201620, China
Shanghai Engineering Research Center of Advanced Automotive Body Manufacturing, Donghua University, Shanghai 200092, China
Authors to whom correspondence should be addressed.
Materials 2019, 12(1), 13;
Received: 23 November 2018 / Revised: 18 December 2018 / Accepted: 18 December 2018 / Published: 20 December 2018
(This article belongs to the Special Issue Carbon Fiber Reinforced Polymers)
PDF [5304 KB, uploaded 21 December 2018]


To satisfy the light weight requirements of vehicles owing to the aggravation of environmental pollution, carbon-fiber (CF)-reinforced epoxy composites have been chosen as a substitute for traditional metal counterparts. Since the current processing methods such as resin transfer molding (RTM) and compression molding (CM) have many limitations, an integrated and optimal molding method needs to be developed. Herein, we prepared high-performance composites by an optimized molding method, namely compression resin transfer molding (CRTM), which combines the traditional RTM and CM selectively and comprehensively. Differential scanning calorimetry (DSC) and rotational rheometry were performed to optimize the molding parameters of CRTM. In addition, metallurgical microscopy test and mechanical tests were performed to evaluate the applicability of CRTM. The experimental results showed that the composites prepared by CRTM displayed superior mechanical properties than those of the composites prepared by RTM and CM. The composite prepared by CRTM showed up to 42.9%, 41.2%, 77.3%, and 5.3% increases in tensile strength, bending strength, interlaminar shear strength, and volume fraction, respectively, of the composites prepared by RTM. Meanwhile, the porosity decreased by 45.2 %. View Full-Text
Keywords: RTM; CM; CRTM; carbon-fiber reinforced epoxy composite; lightweight RTM; CM; CRTM; carbon-fiber reinforced epoxy composite; lightweight

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Sun, Z.; Xiao, J.; Tao, L.; Wei, Y.; Wang, S.; Zhang, H.; Zhu, S.; Yu, M. Preparation of High-Performance Carbon Fiber-Reinforced Epoxy Composites by Compression Resin Transfer Molding. Materials 2019, 12, 13.

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