COMPOSITE MATERIAL MEMBER WITH UNIFORM SURFACE RESISTIVITY

Title:

COMPOSITE MATERIAL MEMBER WITH UNIFORM SURFACE RESISTIVITY

Document Type and Number:

Japanese Patent JP2009280746

Kind Code:

A

Abstract:

To easily obtain an injection-molded molding having a good and unifrom electroconductivity.

The composite material comprises carbon fibers dispersed in the matrix as a filler. In the carbon fiber-containing composite material member, the number density of the carbon fibers is uniform in the depth direction and the carbon fibers are not extremely orientated along the flow direction on the surface of the composite member. Preferably, the carbon fibers are carbon nanotubes or gas phase-grown carbon fibers. For example, when a molding material containing the filers and the matrix is flown into the mold, the orientation and density of the carbon fibers are controlled by carrying out the molding as the fountain flow phenomenon on the free surface of the tip of the flow is covered with another resin.

Inventors:

YASUHARA TOSHIYUKI
KAWASE AKIRA
MURAKAMI HIROYA

Application Number:

JP2008136012A

Publication Date:

December 03, 2009

Filing Date:

May 23, 2008

Export Citation:

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Assignee:

TOKYO INST TECH

International Classes:

C08L101/00; C08J3/20; C08K3/00; C08K7/02

Domestic Patent References:

JPH11315149A	1999-11-16
JP2004107534A	2004-04-08
JP2003335871A	2003-11-28
JP2001247772A	2001-09-11
JP2002309006A	2002-10-23
JP2004035826A	2004-02-05

Attorney, Agent or Firm:

Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Yoshihiro Kobayashi
Kazuo Yoshii

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