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Title:
PREPREG AND CARBON-FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2014/017340
Kind Code:
A1
Abstract:
Provided are a prepreg and a carbon-fiber-reinforced composite material having excellent long-term storage stability and adhesiveness between a carbon fiber and a matrix resin. The present invention is a prepreg made by impregnating a sizing-agent-coated carbon fiber, which is coated with a sizing agent including an aliphatic epoxy compound (A) and an aromatic epoxy compound (B1), with a thermosetting resin composition including a thermosetting resin (D), a latent curing agent (E), and, if necessary, an additive (F) other than the thermosetting resin (D) and the latent curing agent (E), the prepreg being characterized in that the ratio ((a)/(b)) between (a) the height of a binding energy component attributed to CHx, C-C, and C=C and (b) the height of a binding energy component attributed to C-O in a C1s core spectrum obtained by measuring the surface of said sizing-agent-coated carbon fiber by X-ray photoelectron spectroscopy is within a predetermined range.

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Inventors:
ARAI NOBUYUKI (JP)
ICHIKAWA TOMOKO (JP)
TAIKO HIROSHI (JP)
ENDO MAKOTO (JP)
KOBAYASHI MASANOBU (JP)
MISUMI JUN (JP)
Application Number:
PCT/JP2013/069325
Publication Date:
January 30, 2014
Filing Date:
July 16, 2013
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/24; D06M13/11; D06M15/55; D06M101/40
Domestic Patent References:
WO2003010383A12003-02-06
WO2008040963A12008-04-10
WO1996017006A11996-06-06
WO2006077153A22006-07-27
WO2009107696A12009-09-03
Foreign References:
JP2005179826A2005-07-07
JP2005213687A2005-08-11
JPH07279040A1995-10-24
JP2005179826A2005-07-07
JP2005256226A2005-09-22
JP2008280624A2008-11-20
JP2005213687A2005-08-11
JP2002309487A2002-10-23
JPH02307979A1990-12-21
JP2002173873A2002-06-21
JPS5971479A1984-04-23
JPS5841973A1983-03-11
JP2001031838A2001-02-06
JPH11241230A1999-09-07
JPH09235397A1997-09-09
US5028478A1991-07-02
JPH0326750A1991-02-05
JP2003026768A2003-01-29
JP2002363253A2002-12-18
JPH0643508B21994-06-08
JP2003535181A2003-11-25
JPS621717A1987-01-07
JP2004506789A2004-03-04
JPH01104624A1989-04-21
JPS6426651A1989-01-27
JPS63170427A1988-07-14
JPS63170428A1988-07-14
JP2003535181A2003-11-25
JP2003535181A2003-11-25
EP0524054A11993-01-20
EP0749987A11996-12-27
Other References:
POLYM. ENG. SCI., vol. 14, no. 2, 1974, pages 147 - 154
See also references of EP 2878617A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
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