Effects of Fiber Reinforcing Configuration on Oxidation and Melting Phenomenon of CF/PPS Laminated Composites by Electrically-Conducting

This study aims to reveal the mechanism of melting and oxidation phenomenon of CF/PPS laminated composites by electrically-conducting. The materials used are unidirectional CF/PPS and woven CF/PPS laminates. The effects of applied voltage, conducting time and fiber reinforcing configuration on melting behavior of CFRTP composites were investigated. The melting state was evaluated by microscopic observation and its image analysis. The experimental results revealed that the melting and oxidation behavior were influenced by reinforcing configuration and electric resistivity of CFRTP laminates. The melting area of both CFRTP laminates tends to increase with increasing the applied voltage and conducting time. It was found that the insertion of PPS films in melting interface was required in order to prevent the edge effect and non-uniform profile shapes of the melting area. It was also confirmed that woven CF/PPS laminates could be melted at low applied voltage.