2111 人工樹脂を用いない新規グリーンコンポジットの開発(S23-1 新規グリーンコンポジットの開発,S23 グリーンコンポジットの最前線) 2111 Development of New "Green" Composites Without Using Artificial Polymers
In this paper, we tried to fabricate new "green" composites without using artificial polymers. Their fiber orientation is unidirectional. It was shown the composites can be made by hot-pressing over 60℃. The influence of molding conditions on their tensile behavior and flexural behavior was investigated by changing the molding temperature and pressure. The molding temperature was changed every 20℃ from room temperature to 180℃. The molding pressure used was 10MPa and 50MPa. Average tensile strength and Young's modulus of the composites molded at 120℃ and 50MPa were 322MPa and 37GPa, respectively. Their Young's modulus tends to increase with increasing molding temperature. Their fractured elongation tends to decrease with increasing molding temperature over 80℃. Average flexural strength and flexural modulus of the composites molded at 140℃ and 50MPa were 386MPa and 37GPa, respectively. The relationship between fractured elongation obtained by flexural tests and molding temperature is different from that obtained by tensile tests.
年次大会講演論文集 2005.1(0), 531-532, 2005