CARBON FIBER PAPER AND POROUS CARBON BOARD

Title:

CARBON FIBER PAPER AND POROUS CARBON BOARD

Document Type and Number:

Japanese Patent JP3521619

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To obtain a porous carbon board capable of keeping mechanical strength thereof and changing the diameter of pores without depending on the change in density thereof, high in electroconductivity and heat conductivity in depth direction thereof.
SOLUTION: This carbon paper contains two or more kinds of carbon short fibers of different thickness consisting of at least carbon short fibers having 4-9μm and ≥4mm length, in which the ratio (D2/D1) of the diameter of the thinnest carbon short fiber (D1) to the diameter of the thickest carbon short fiber (D2) is ≥1.3. This porous carbon board contains two or more kinds of carbon short fibers of different thicknesses containing at least carbon short fibers having 4-9μm and ≥4mm length, and has 300-850kg/m3 density ρ. Bending strength F [MPa] and specific resistance in depth direction R [Ωm] thereof satisfies the relationship (1) and (2). (1) F≥ρ/27, (2) R≤0.015×ρ-1/2.

More Like This:

WO/2009/145910	LOW BACK PRESSURE POROUS HONEYCOMB AND METHOD FOR PRODUCING THE SAME
JP2001226172	ALUMINA-BASED FORMED BODY
JP4793632	Metal oxide nanoporous material, catalyst carrier and catalyst for hydrogen production reaction using it

Inventors:

Inoue, Mikio

Application Number:

JP14553796A

Publication Date:

April 19, 2004

Filing Date:

June 07, 1996

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TORAY IND INC

International Classes:

C04B38/00; C04B35/83; C25B11/12; D01F9/22; D21H13/50; H01M4/96; (IPC1-7): D21H13/50; C04B35/83; C04B38/00; C25B11/12; H01M4/96

Previous Patent: STEEL SHEET FOR PORCELAIN ENAMELING EXCELLENT IN ADHESION

Next Patent: DETERMINATION OF BIO-COMPONENT