CARBON FIBER BUNDLE THAT DEVELOPS EXCELLENT MECHANICAL PERFORMANCE

Title:

CARBON FIBER BUNDLE THAT DEVELOPS EXCELLENT MECHANICAL PERFORMANCE

Document Type and Number:

WIPO Patent Application WO/2010/143681

Kind Code:

A1

Abstract:

Provided is a carbon fiber bundle for use in producing a fiber-reinforced resin having high mechanical characteristics. Specifically provided is a carbon fiber bundle which is a carbon fiber that is composed of carbon single fibers and that has a strand strength of 5900 MPa or more, a strand elastic modulus of 250 to 380GPa as determined by the ASTM method, and a knot tenacity of 900N/mm2 or more. Each carbon single fiber has not any surface uneven structure which extends on the surface of the single fiber in the lengthwise direction thereof and which has a length of 0.6μm or longer, but has an uneven structure wherein the height difference (Rp-v) between the highest point (peak) and the lowest point (valley) on the surface of the single fiber is 5 to 25nm with the average roughness (Ra) being 2 to 6nm. The cross section of the single fiber has a length/breadth ratio of 1.00 to 1.01, and the mass of the single fiber per unit length is 0.030 to 0.042mg/m.

Inventors:

SUGIURA NAOKI (JP)
OKUYA TAKAHIRO (JP)
HASHIMOTO HIROSHI (JP)
OOKI ISAO (JP)
MATSUMURA HIROKO (JP)
HATA MASAHIRO (JP)
WAKABAYASHI KOUKI (JP)
HATAYAMA AKITO (JP)

Application Number:

PCT/JP2010/059828

Publication Date:

December 16, 2010

Filing Date:

June 10, 2010

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI RAYON CO (JP)
SUGIURA NAOKI (JP)
OKUYA TAKAHIRO (JP)
HASHIMOTO HIROSHI (JP)
OOKI ISAO (JP)
MATSUMURA HIROKO (JP)
HATA MASAHIRO (JP)
WAKABAYASHI KOUKI (JP)
HATAYAMA AKITO (JP)

International Classes:

D01F9/22; D01F6/18

Foreign References:

JP2009046770A	2009-03-05
JPH04240220A	1992-08-27
JP2005133274A	2005-05-26
JPH0615722A	1994-01-25
JPH11124744A	1999-05-11

Other References: