天然繊維で強化した機能性グリーンコンポジットの開発

Various types of unidirectional and random bamboo fiber reinforced “green” composites were
fabricated, and examined their damping properties as a function of fiber content. The loss factors decreased
with increasing fiber content. However they decreased gently higher than 40mass percent fiber content, the
tensile modulus increased proportionally to the fiber content of about 80mass percent. The definite
relationship between loss factor and Young’s modulus was not found. In addition, loss factors of random
fiber (10mm fiber) reinforced “green” composites are larger than loss those unidirectional (continuous fiber)
ones.