Interfacial Shear Strength and Interaction between Polycarbonate and Reinforcement Fibers

Abstract We aim to investigate the ordered polycarbonate (PC) structure around a reinforcement fiber and the interfacial properties of the interaction between PC and the reinforcement fiber. Pitch-based carbon fiber (piCF) and E-glass fiber (GF) were used as reinforcement fibers. From the results of the present Raman analysis of PC/piCF and PC/GF composite, we concluded that the interaction of the phenyl ring (π electrons) between PC and piCF is attributed to the formation of the ordered structure of PC at the piCF surface. In the case of the PC/GF composite, neither the interaction nor the formation of the ordered structure of PC is identified. It is confirmed that the interfacial shear strength of PC/piCF is higher than that of PC/GF. It is concluded that the interaction of π electrons between PC and piCF affects the interfacial shear strength.