Current of Decomposable Adhesives and Application ofFRP Adhesive Bonding

In Japan, the innovative structural materials are developing through the collaboration among industry,government and academia. The synergistic effect based on the combination of materials is very important andthe optimum arrangement of the good properties of each material, such as steel, aluminum, and FRP, is desiredas“ Multi-materials”. One of the remarkable technologies for Multi-materials is joining/bonding for dissimilarmaterials with considering the decomposability for recycling. The adhesive bonding technology for metaland other materials with high joining strength and easy decomposition is needed. In this paper, the currentof the research and development for decomposable adhesives were reviewed, and the heating technologiesfor decomposition were described. Furthermore, the adhesive technology with thermosetting adhesives andceramics particles for a GFRP joint and decomposition due to the microwave irradiation were introduced. Theacceleration of the progress for the research and development in this field is expected by the collaboration ofthe related industry and academia.