FR2049936A5 - Carbon fibre production by polyacrylonit- - rile filament oxidation - Google Patents

Carbon fibre production by polyacrylonit- - rile filament oxidation

Info

Publication number
FR2049936A5
FR2049936A5 FR7020592A FR7020592A FR2049936A5 FR 2049936 A5 FR2049936 A5 FR 2049936A5 FR 7020592 A FR7020592 A FR 7020592A FR 7020592 A FR7020592 A FR 7020592A FR 2049936 A5 FR2049936 A5 FR 2049936A5
Authority
FR
France
Prior art keywords
oxidation
degrees
pref
polyacrylonit
rile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7020592A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SGL Carbon Corp
Original Assignee
SGL Carbon Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SGL Carbon Corp filed Critical SGL Carbon Corp
Application granted granted Critical
Publication of FR2049936A5 publication Critical patent/FR2049936A5/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
    • D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/32—Apparatus therefor

Abstract

Carbon (graphtie) fibres of high elasticity, modulus and tenacity, suitable for C fibre strips for fibre/resin articles, are produced by subjecting PAN filaments of 1-5 den. to (a) partial oxidation in oxidising atm. pref. air, at 200-300 degrees C for less than 4 hrs; (b) further oxidation at 300-375 degrees C at rate which is at least 10 times faster than in first oxidation, where this rate is measured through dwelling-period under oxidation conditions, until complete infusibility is attained; and (c) quick pyrolysis/graphitising heat treatment in non-oxidising atm. at 1000-2500 degrees C. Pref. filamentary PAN is stretched at 100 degrees C before oxidation, and pref. the continuous filaments are led over cold guide rolls during oxidation.
FR7020592A 1969-06-04 1970-06-04 Carbon fibre production by polyacrylonit- - rile filament oxidation Expired FR2049936A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83025469A 1969-06-04 1969-06-04

Publications (1)

Publication Number Publication Date
FR2049936A5 true FR2049936A5 (en) 1971-03-26

Family

ID=25256626

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7020592A Expired FR2049936A5 (en) 1969-06-04 1970-06-04 Carbon fibre production by polyacrylonit- - rile filament oxidation

Country Status (2)

Country Link
DE (1) DE2026019A1 (en)
FR (1) FR2049936A5 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742925A (en) * 1980-08-22 1982-03-10 Toho Rayon Co Ltd Production of high-performance carbon fiber strand
KR920700318A (en) * 1989-02-23 1992-02-19 나가이 야따로 Flameproofing Device
EP0626548A1 (en) * 1993-05-28 1994-11-30 Akzo Nobel N.V. Process and apparatus for the high speed oxidation of organic fiber

Also Published As

Publication number Publication date
DE2026019A1 (en) 1971-02-25

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Legal Events

Date Code Title Description
ST Notification of lapse