406 プレス成形によるグリーンコンポジットの弾性率に及ぼす繊維配向および繊維間の濡れの影響について(高分子/高分子基複合材料)

概要

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Biocomposites made from bamboo, kenaf and biodegradable resin were fabricated with a press forming. The effect of fiber content on flexural modulus was investigated. The Young's modulus of each fiber was measured to predict the flexural modulus in the composites. The flexural modulus was predicted by Cox model, which incorporated the effect of the fiber compression. The flexural modulus difference between experimental and calculation was large in bamboo. This is because Young's modulus in bamboo fiber was estimated considerably lower than the actual modulus due to partial breakage bamboo structure during fiber tensile test. Moreover, the flexural modulus in the unidirectional fiber composite made a good agreement with the predicted. However, the flexural modulus in the fiber cross ply composites was considerably lower than the predicted. This is because the less fibers movement during hot pressing made the fibers less wetting and resulted in the resin segregation.
社団法人日本機械学会の論文
2006-11-25