エポキシ樹脂の力学・物理特性に及ぼすセルロースナノファイバー分子の影響

抄録

The high mechanical and biodegradable performance of continuous fiber reinforeced polymer matrix recently has drawn considerable attention. The current breakthrough in isolation of plant fibers such as cellulose nanofibers (CNFs) have opened new possibilities for these green materials. In this study, we evaluated the bending behavior of CNF reinforced epoxy resin matrix (CNF/Epoxy) composites by three-point bending test. The flexural modulus of epoxy resin was dractically increased by the CNF addition of 0.2 wt.%. The theories to estimate the mechanical properties of fiber reinforced composite materials were not suitable to discuss this dractic increase of flexural strength. Therefore, we surppose that CNF addition allows the change of stracture of epoxy resin and its own mechanical properties by the chemical interaction.