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CARBON FIBER FOR REINFORCING CEMENT-BASE INORGANIC MATERIAL, CARBON FIBER REINFORCED CEMENT-BASED INORGANIC MATERIAL FORMED BODY AND ITS PRODUCTION
CARBON FIBER FOR REINFORCING CEMENT-BASE INORGANIC MATERIAL, CARBON FIBER REINFORCED CEMENT-BASED INORGANIC MATERIAL FORMED BODY AND ITS PRODUCTION
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机译：用于增强水泥基无机材料的碳纤维，用于碳纤维增强水泥基无机材料的成型体及其生产
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摘要
PROBLEM TO BE SOLVED: To improve the reinforcing effect and mechanical characteristics of a formed body by specifying the adhesion strength between the filament of a carbon fiber with deposition of a sizing agent and a cement-based inorg. material. ;SOLUTION: A sizing agent containing an epoxy resin, a condensate between an unsatd. bibasic acid and a bisphenol with addition of an alkylene oxide, and a resin essentially comprising a phenol selected from single-ring phenols and polyring phenols with addition of alkylene oxide is deposited by 0.1-10wt.% on the surface of a carbon fiber having ≤1.05 ratio of the peripheral length to the reference length of the cross section. Thus, the obtd. carbon fiber to reinforce a cement-based inorg. material has ≥5MPa adhesion strength between the filament and the cementbased inorg. material, 0.05-0.5wt.% pyrolytic org. material, 0.1-0.4 surface oxygen density (OIS/CIS) measured by X-ray photoelectron spectroscopy of a carbon fiber bundle, and ≥4GPa average filament strength.;COPYRIGHT: (C)1997,JPO
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