Fine carbon fiber mixture and composition thereof

A technology of carbon fibers and mixtures, applied in fiber processing, fiber chemical characteristics, textiles and papermaking, etc., can solve problems that are not suitable for large-scale production

Inactive Publication Date: 2004-12-15
SHOWA DENKO KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, the above-mentioned method of producing nanotubes by arc discharge has not been put into practice because the method is not suitable for mass production

Method used

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  • Fine carbon fiber mixture and composition thereof
  • Fine carbon fiber mixture and composition thereof
  • Fine carbon fiber mixture and composition thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0069] The present invention will be described below by way of examples.

[0070] (Example)

[0071] Such as figure 1 As shown schematically, the raw material feed pipe 4 and the carrier gas feed pipe 6 for adding the raw material gasified in the raw material gasification device 5 are arranged on the top of the vertical heating furnace 1 (inner diameter: 170mm, length: 1500mm) .

[0072]Benzene containing ferrocene (4% by mass) and thiophene (5% by mass (1.9% by mass when converted to atomic sulfur)) was gasified, and the gasified product was fed through the raw material feed pipe 4 at a rate of 15 g / min. , while maintaining the temperature of the product at 200°C, and hydrogen gas serving as a carrier gas was fed at a rate of 180 liters / minute, thereby allowing the reaction to proceed.

[0073] The fine carbon fibers produced by the above reaction were heat-treated at 1300° C. in an argon (Ar) atmosphere. The thus-treated fine carbon fibers were further subjected to heat ...

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Abstract

A fine carbon fiber mixture produced through a vapor-growth process, which comprises fine carbon fiber, each fiber filament of the fiber having an outer diameter of 1 to 500 nm and an aspect ratio of 10 to 15,000 and comprising a hollow space extending along its center axis and a multi-layer sheath structure consisting of a plurality of carbon layers; and non-fibrous carbon such as flake-like carbon, granular carbon, or sheet-like carbon. A composition comprising a resin or a rubber and a fine carbon fiber mixture as above contained therein. An electrically conductive article or a sliding article comprising the composition.

Description

[0001] Cross References to Related Applications [0002] This application, filed under 35 U.S.C. §111(a), claims benefit of the filing date of provisional application 60 / 393,428, filed under 35 U.S.C. § 119(e)(1), which was filed under 35 U.S.C. §111(b) filed on July 1, 2002. technical field [0003] The present invention relates to fine carbon fiber mixtures containing non-fibrous carbon such as flaky carbon, granular carbon, or flake carbon; more particularly, to fine carbon fibers having excellent electrical conductivity, thermal conductivity, and frictional properties, and to compositions containing the same Resin or rubber composition. Background technique [0004] Carbon fibers are used in various composite materials due to their excellent properties such as high strength, high elastic modulus, and high electrical conductivity. Since carbon fibers used as carbon materials have excellent mechanical properties in addition to excellent electrical conductivity, carbon fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/04C08K7/06C08K7/24C08K9/02D01F9/127
CPCC08K9/02C08K7/24C08K7/06C08K2201/014B82Y30/00D01F9/127C08K3/04C08K2201/016Y10T428/30Y10T428/2913Y10T428/2975Y10T428/2918
Inventor 森田利夫山本龙之井上齐大嶋哲汤村守雄
Owner SHOWA DENKO KK
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