
Research Progress of Carbon Fiber Reinforced Thermoplastic Engineering Plastics
ZHENG Hongwei, ZHANG Zekai, GUO Zengxian, WU Xi'na, WEI Hao, WANG Guojun
Research Progress of Carbon Fiber Reinforced Thermoplastic Engineering Plastics
Carbon fiber reinforced thermoplastic composites (CFRP) have advantages such as high specific modulus, high specific strength, and strong corrosion resistance. Based on the length of the reinforcing fibers, CFRP is divided into continuous carbon fiber reinforced thermoplastic composites (CCFRP) and short cut carbon fiber reinforced thermoplastic composites (SCFRP). Compared with thermosetting matrices, thermoplastic resin matrices have characteristics such as short processing cycles and strong recyclability. They have been widely used in the fields such as aerospace, clinical medicine and wind power generation. The article introduces common applications of CFRP in aerospace and clinical medicine, and reviews the commonly used molding processes for thermoplastic composites suitable for different lengths of reinforcing fibers (continuous carbon fibers and short cut carbon fibers), such as injection molding, compression molding, 3D printing molding and transfer molding. The article introduces the recycling methods of carbon fiber reinforced thermoplastic composites from the aspects of thermal recycling, mechanical recycling,and chemical recycling. It proposes that controlling the orientation of short cut carbon fibers can improve the performance of the composites, and points out that the development of carbon fiber sizing agents with high heat resistance, good miscibility with resin matrices, and strong bonding with both resin matrices and carbon fibers is a key focus for future research.
Carbon fiber / Composites / Recycle / Forming process / Thermoplastic
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