Carbon fiber nonwoven fabric, and production method and use thereof

Carbon fiber nonwoven fabric, and production method and use thereof

  • CN 1,878,898 B
  • Filed: 11/09/2004
  • Issued: 06/13/2012
  • Est. Priority Date: 11/10/2003
  • Status: Active Grant
First Claim
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1. the manufacturing approach of the nonwoven fabric that is made up of the aggregate of carbon fiber is characterized in that, comprises following operation:

  • (1) utilizes meltblown;

    From being selected from pitch, polyacrylonitrile, polycarbodiimide, polyimides, gathering the mixture that thermoplasticity carbon precursor at least a indoles and the aromatic polyamides forms through melting mixing by the vistanex of 100 weight portions and 1~

    100 weight portion;

    Form the operation of precursor fiber aggregate(2) aggregate to precursor fiber carries out infusible stabilization processes under air-flow, the thermoplasticity carbon precursor in the stable precursor fiber, and the operation of the aggregate of formation stabilisation precursor fiber,(3) from the aggregate of stabilisation precursor fiber, vistanex is removed, form the fibrous carbon precursor aggregate operation and(4) aggregate to the fibrous carbon precursor carries out carbonization or graphited operation.

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