酸化クロム触媒を用いた熱分解によるCFRPの補修技術の開発

抄録

This paper presents the preliminary investigation of repairing method for CFRP based on TASC (Thermal Activation of Semi-Conductors) technique by removing the matrix resin and inserting the reinforced thread in the target area of CFRP. In order to optimize the joining process, temperature effects on decomposition rate and fiber damage during the decomposition process was studied. The decomposition rate increased as temperature increased whereas the decomposition rate was constant at the temperature of more than 450 °C. By contrast, carbon fiber damaged at the temperature of more than 460 °C. Hence, the optimal temperature of decomposition process was revealed. Decomposition process have been optimized by developing the heating configuration. Homogenous heating was achieved by using radiator and shielding plates with optimal heat source distance from the heating objective. Finally, it is possible to carry out the strength evaluation test using single-lap test specimen created by the proposed method.