電磁波を利用した選択的加熱によるCFRPの熱分解特性評価

抄録

Currently, most of waste CFRP is landfilled and carbon fiber, which is a useful resource, has not been recovered. Pyrolysis methods and supercritical fluid dissolution methods have been studied as recycling methods, but have not yet been put into practical use. Separation of CFRP carbon fibers using microwaves has also been investigated, but the relationship between the carbon fiber direction and the microwave irradiation direction has not been clarified. Therefore, in this study, five types of CFRP with different laminated structures were heated with single-mode microwaves, and the relationship with the carbon fiber direction was investigated. The suitable irradiation condition for thermal decomposition of CFRP was evaluated based on the rate of residual resin. From the experimental results, it was found that the carbon fiber direction of CFRP, the laminated structure, and the electric and magnetic field strength of the standing microwave affect rate of residual resin. On the other hand, when irradiated with single mode microwave for 2 minutes or more, about 80% of the resin was removed from CFRP.