235 大豆由来熱硬化性樹脂を用いたジュート麻長繊維強化積層板の機械的特性(生体・環境適合型材料の創製と特性評価)

概要

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Natural fiber reinforced composite is proposed for the alternatives of GFRP. Acry lated epoxidized soybean oil (AESO) was used for matrix and jute yarn was used for reinforcement. Styrene is used to dilute AESO and improve the mechanical properties. First, the best composition of AESO resin was investigated for initiator and styrene contents by comparing the bending strength and modulus of resins with various initiator and styrene contents. Experimental results showed that increase of styrene contents improved the mechanical properties, while it decreases the ratio of renewable resources in the composites. Then, unidirectional natural fiber preform made of jute fiber was prepared. A jute fiber reinforced composite was fabricated using the hand-layup method. Young's modulus and tensile strength were measured by using tensile tests. The results showed that the composite using the unidirectional preform has higher fiber volume fraction and tensile strength than those using natural fiber mats as preform.
一般社団法人日本機械学会の論文
2009-11-06