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Title:
PREPREG AND CARBON-FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2014/017339
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 and also having excellent electroconductivity in the thickness direction and impact resistance. 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 particles (F) of a thermoplastic resin and electroconductive particles (G) at a mass ratio of 1:1-1000, or electroconductive particles (H) in which a thermoplastic resin is covered with an electroconductive substance, 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/JP2013/069317
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
WO1994016003A11994-07-21
Foreign References:
JP2005179826A2005-07-07
JP2005213687A2005-08-11
JPH07279040A1995-10-24
US5028478A1991-07-02
JPH0326750A1991-02-05
JPH06344519A1994-12-20
JPH0834864A1996-02-06
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
JPH01104624A1989-04-21
JPH0269566A1990-03-08
JPH04292634A1992-10-16
JPH0232843A1990-02-02
JPH085043B21996-01-24
JPH0751905B21995-06-05
JPS4728067A1972-10-31
JPS4983767A1974-08-12
JPS5141770A1976-04-08
JPS51131576A1976-11-16
JPS6426651A1989-01-27
JPS63170427A1988-07-14
JPS63170428A1988-07-14
Other References:
See also references of EP 2862893A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
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