主催: 一般社団法人 日本機械学会
会議名: 日本機械学会 北陸信越支部第57期総会・講演会
開催日: 2020/03/08
The study examines the self-healing of spread carbon fiber (SCF) /epoxy (EP) laminates containing fillers. The fillers used in this study were cellulose nanofiber (CNF) and talc. The diameter and fiber length of CNF are 20nm and 20-30µm, respectively. The thickness and platelet size of talc are 0.2µm and 3.0µm, respectively. Healing is accomplished by incorporating a microencapsulated healing agent and catalyst. Self-healing is demonstrated on short beam shear specimens and the healing efficiency was evaluated by the strain energies of virgin and healed specimens. The result showed that the healing efficiency of self-healing SCF/EP/CNF laminates increased as compared with that of self-healing SCF/EP laminates whereas the interlaminar shear strength did not change with CNF addition. The healing efficiency of self-healing SCF/EP/talc laminates increased with increases in talc content. The damaged area of self-healing SCF/EP laminates with observed large scale crack. However, the damaged areas of self-healing SCF/EP/CNF and SCF/EP/talc laminates observed many small scale cracks.
