发明名称 |
CARBON FIBER COATED WITH SIZING AGENT, PROCESS FOR PRODUCING CARBON FIBER COATED WITH SIZING AGENT, PREPREG, AND CARBON FIBER REINFORCED COMPOSITE MATERIAL |
摘要 |
Provided are sizing agent-coated carbon fibers that achieve excellent adhesion between the carbon fibers and a matrix resin and yield a prepreg having excellent stability of composite physical properties after long-term storage and having excellent high-order processability, a process for producing the sizing agent-coated carbon fibers, a prepreg, and a carbon fiber reinforced composite material. The present invention provides carbon fibers coated with a sizing agent that includes an aliphatic epoxy compound (A) and at least an aromatic epoxy compound (B1) as an aromatic compound (B). The carbon fibers have an (a)/(b) ratio of 0.50 to 0.90 where (a) is the height (cps) of a component at a binding energy (284.6 eV) assigned to CHx, C-C, and C=C and (b) is the height (cps) of a component at a binding energy (286.1 eV) assigned to C-O in a C 1s core spectrum of the surface of the sizing agent analyzed by X-ray photoelectron spectroscopy using AlK± 1,2 as the X-ray source at a photoelectron takeoff angle of 15°. |
申请公布号 |
EP2799616(A4) |
申请公布日期 |
2015.09.30 |
申请号 |
EP20120863928 |
申请日期 |
2012.12.18 |
申请人 |
TORAY INDUSTRIES, INC. |
发明人 |
ICHIKAWA, TOMOKO;ENDO, MAKOTO;TAIKO, HIROSHI;KOBAYASHI, MASANOBU;ARAI, NOBUYUKI;MISUMI, JUN |
分类号 |
D06M13/11;D06M15/55;D06M101/40 |
主分类号 |
D06M13/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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