Advanced CFRTP forming technology

Owing to the many advantages of carbon fiber, such as its high strength, good electrical conductivity, and light weight, carbon fiber-reinforced thermoplastics (CFRTPs) have been used in a variety of applications. However, the use of CFRTPs in fabrics suffers a significant drawback regarding their manufacture. The molten viscosity of thermoplastic resins is extremely high compared to that of thermoset resins, which makes it difficult to impregnate thermoplastic resin into fiber bundles. In addition, thermoplastic resins exhibit poor interfacial adhesion with carbon fibers because of low surface energy and a chemically inert surface. Therefore, We are developing the carbon fiber surface treatment methods and CFRTP manufacturing process to improve the interfacial adhesion and the degree of impregnation.

SH Han, HJ Oh, SS Kim. Evaluation of the impregnation characteristics of carbon fiber-reinforced composites using dissolved polypropylene. Composites Science and Technology. 2014; 91:55–62

PP sized carbon fiber