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GB1194176A - Production of Flexible Carbon Fibres. - Google Patents

Production of Flexible Carbon Fibres.

Info

Publication number
GB1194176A
GB1194176A GB482669A GB482669A GB1194176A GB 1194176 A GB1194176 A GB 1194176A GB 482669 A GB482669 A GB 482669A GB 482669 A GB482669 A GB 482669A GB 1194176 A GB1194176 A GB 1194176A
Authority
GB
United Kingdom
Prior art keywords
inert gas
tunnel
fibres
oxygen
temperature
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
GB482669A
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.)
Lonza Werke GmbH
Original Assignee
Lonza Werke GmbH
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 Lonza Werke GmbH filed Critical Lonza Werke GmbH
Publication of GB1194176A publication Critical patent/GB1194176A/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
    • D01F9/24—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
    • D01F9/26—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 polyesters
    • 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
    • D01F9/21—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Fibers (AREA)

Abstract

1,194,176. Flexible carbon and graphite fibres. LONZA-WERKE G.m.b.H. 29 Jan., 1969 [30 Jan., 1968], No. 4826/69. Heading C1A. Flexible carbon fibres are produced by heating a fibrous carbonizable starting material to a temperature of up to 1200‹ C., at a uniform heating rate under a pressure of less than 50 mm. Hg, and an inert gas containing from 0À5 to 5% by volume of oxygen is passed over or through the material during the heat treatment without any change in pressure. Preferably the inert gas is nitrogen which contains 1À0-2À0% by volume of oxygen. The heating of the carbonizable fibres may be achieved by a preheated inert gas stream. The fibres may be heated by passing through an oven on an endless screen belt, the inlet end of the oven being at the initial ternperature and the outlet at the final heating temperature. The oxygen containing inert gas stream is preferably introduced beneath the fibre supporting run of the endless belt. The oven may be a tunnel the moving belt passing through the tunnel transversely of shafts leading into the tunnel through which the oxygen containing inert gas stream is direct to the underside of the fibre supporting run of the endless belt, the temperature of the gas-streams issuing from adjacent shafts being their lowest at the inlet to the tunnel and highest at the outlet of the tunnel. The inert gas stream may be removed from the tunnel, cooled to condense the volatile condensation products and then reused after the oxygen content has be raised to the required level. The uniform heating rate may be from 50‹ to 250‹ C. preferably 100‹ to 200‹ C. per hour. The carbonized product may be graphitized by heating at a temperature of from 1300-3000‹ C. in an inert gas atmosphere.
GB482669A 1968-01-30 1969-01-29 Production of Flexible Carbon Fibres. Expired GB1194176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH140668A CH488627A (en) 1968-01-30 1968-01-30 Process for the production of textile flexible carbon fibers

Publications (1)

Publication Number Publication Date
GB1194176A true GB1194176A (en) 1970-06-10

Family

ID=4209686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB482669A Expired GB1194176A (en) 1968-01-30 1969-01-29 Production of Flexible Carbon Fibres.

Country Status (4)

Country Link
CH (2) CH140668A4 (en)
DE (1) DE1900243A1 (en)
FR (1) FR1601374A (en)
GB (1) GB1194176A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720536A (en) * 1970-06-18 1973-03-13 United Aircraft Corp Treatment of carbon fibers
US11486059B2 (en) 2018-03-09 2022-11-01 centrotherm international AG Method and device for stabilizing precursor fibers for the production of carbon fibers
US11661063B2 (en) 2019-08-19 2023-05-30 Zf Friedrichshafen Ag Method for determining a lane change, driver assistance system and vehicle
CN118223155A (en) * 2024-04-12 2024-06-21 东华大学 Preparation method of enhanced carbon nanofiber based on ionization pretreatment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106523A (en) * 1982-12-07 1984-06-20 Toray Ind Inc Yarn-guiding method in preoxidation furnace and apparatus therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720536A (en) * 1970-06-18 1973-03-13 United Aircraft Corp Treatment of carbon fibers
US11486059B2 (en) 2018-03-09 2022-11-01 centrotherm international AG Method and device for stabilizing precursor fibers for the production of carbon fibers
US11661063B2 (en) 2019-08-19 2023-05-30 Zf Friedrichshafen Ag Method for determining a lane change, driver assistance system and vehicle
CN118223155A (en) * 2024-04-12 2024-06-21 东华大学 Preparation method of enhanced carbon nanofiber based on ionization pretreatment

Also Published As

Publication number Publication date
DE1900243A1 (en) 1969-09-11
FR1601374A (en) 1970-08-17
CH488627A (en) 1969-12-15
CH140668A4 (en) 1969-12-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees