先進強化樹脂製高温機器の環境調和形設計システムの構築 : リサイクル・FRTPの疲労き裂進展特性に及ぼす環境温度の影響

概要

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This study was done to clarify the influence of complex deterioration on fatigue reliability of thermal plastic in order to construct environmentally sound design system for energy machines. Especially, the influence of recycling process and high environmental temperature on fatigue crack propagation property of fiber-reinforced PA46 were experimentally examined. Main results were as follows ; (1) FCP property was declined remarkably by complex deterioration between elevated temrerature above T_g and recycling process. (2) From fractography using SEM, it could be understood that fibers were easy to pulled out because the matrix resin became ductile due to declining the dynamic elasticity at elevated temperature above T_g. (3) The interfacial bonding between matrix and fibers in specimens were become worse by recycling process and environmental temperature above T_g. Therefor it could be interpreted that the decline of FCP property was caused by the interfacial separation between matrix and fibers.
一般社団法人日本機械学会の論文
1998-03-25