GB1215005A - Making continuous filaments of carbon - Google Patents

Making continuous filaments of carbon

Info

Publication number
GB1215005A
GB1215005A GB843467A GB843467A GB1215005A GB 1215005 A GB1215005 A GB 1215005A GB 843467 A GB843467 A GB 843467A GB 843467 A GB843467 A GB 843467A GB 1215005 A GB1215005 A GB 1215005A
Authority
GB
United Kingdom
Prior art keywords
zone
tow
filaments
inert atmosphere
maintained
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
GB843467A
Inventor
Francis James Higgins
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB843467A priority Critical patent/GB1215005A/en
Publication of GB1215005A publication Critical patent/GB1215005A/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
    • D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
    • 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
    • D01F9/24—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F9/28—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds from polyamides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Inorganic Fibers (AREA)

Abstract

1,215,005. Carbon fibres. COURTAULDS Ltd. 22 April, 1968 [22 Feb., 1967], No. 8434/67. Heading ClA. Continuous carbon filaments are made by (a) passing a tow of man-made organic filaments through a first zone at 200-300‹ C. in an atmosphere of nitrogen, air, or air enriched with oxygen, the residence time being less than 12 hours; (b) passing the tow through a second zone containing an inert atmosphere, most of which zone is at above 1000‹ C., at such a rate that the maximum temperature is maintained for between 30 mins. and 4 hrs. The filaments may be further heated in an inert atmosphere at below 300‹ C/hr. between 1000‹ C. and 1700‹ C., and the temperature then maintained between 1500‹ C. and 1700‹ C. for not more than 3 hours. Graphitization may be effected by further heating to at least 2000‹ C., preferably at 1000‹ C/hour when above 1700‹ C., and maintaining it at the maximum temperature for from 30 mins. to 3 hrs. The length of the tow is preferably maintained constant in the first heating zone, and controlled in the second so that the ratio of entering: leaving lengths is from 1: 0-8 to 1: 1-2. In the third and fourth heatings, the length ratio may be controlled to from 1:0-9 to 1:1-1. The atmospheres are preferably changed frequently to carry away degradation products. The inert atmosphere may be argon, nitrogen or hydrogen.
GB843467A 1967-02-22 1967-02-22 Making continuous filaments of carbon Expired GB1215005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB843467A GB1215005A (en) 1967-02-22 1967-02-22 Making continuous filaments of carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB843467A GB1215005A (en) 1967-02-22 1967-02-22 Making continuous filaments of carbon

Publications (1)

Publication Number Publication Date
GB1215005A true GB1215005A (en) 1970-12-09

Family

ID=9852423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB843467A Expired GB1215005A (en) 1967-02-22 1967-02-22 Making continuous filaments of carbon

Country Status (1)

Country Link
GB (1) GB1215005A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2186429A1 (en) * 1972-06-01 1974-01-11 Toray Industries
US4301136A (en) * 1978-02-27 1981-11-17 Toray Industries, Incorporated Process for continuous graphitization of graphitizable precursor fibers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2186429A1 (en) * 1972-06-01 1974-01-11 Toray Industries
US4301136A (en) * 1978-02-27 1981-11-17 Toray Industries, Incorporated Process for continuous graphitization of graphitizable precursor fibers

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