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Carbon fiber sizing agent, carbon fiber sizing method, sized carbon fiber, sheet-like material using the carbon fiber, and fiber-reinforced composite material
Carbon fiber sizing agent, carbon fiber sizing method, sized carbon fiber, sheet-like material using the carbon fiber, and fiber-reinforced composite material
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机译:碳纤维上浆剂,碳纤维上浆方法,上浆碳纤维,使用该碳纤维的片状材料以及纤维增强复合材料
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摘要
PROBLEM TO BE SOLVED: To obtain a sizing agent for carbon fiber that shows good impregnation, when an epoxy resin is used as a matrix resin, needless to say; further even when the matrix resin is a radically polymerized resin, and shows excellent adhesion. SOLUTION: A sizing agent mainly comprising a compound represented by formula I [A and B are each an organic residue bearing one functional group selected from vinyl, (meth)acryloyl, (alicyclic)epoxy, carboxyl and phenolic hydroxyl; X is a hydrocarbon group represented by formulas II, III, IV or the like (R is H or an alkyl; n is 0-12)] is dissolved or dispersed in water and the solution or dispersion is applied to carbon fiber in an amount of 0.1-5 wt.% based on the fiber to form sheets of carbon fiber. This carbon fiber sheet is used as a reinforcing material to form fiber-reinforced resin composition thereby producing the objective carbon fiber-reinforced composite material.
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