GB1196599A - Polyacrylonitrile and carbon fibre production - Google Patents

Polyacrylonitrile and carbon fibre production

Info

Publication number
GB1196599A
GB1196599A GB2371/67A GB237167A GB1196599A GB 1196599 A GB1196599 A GB 1196599A GB 2371/67 A GB2371/67 A GB 2371/67A GB 237167 A GB237167 A GB 237167A GB 1196599 A GB1196599 A GB 1196599A
Authority
GB
United Kingdom
Prior art keywords
steam
bath
tow
stretched
fibres
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
GB2371/67A
Inventor
Vera Isabella Furness
Bernard Wilson Marshall
John Baillie
Boleslaw Krzesinski
William Walker
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 GB2371/67A priority Critical patent/GB1196599A/en
Priority to NL6715999A priority patent/NL6715999A/xx
Priority to DE19671669385 priority patent/DE1669385A1/en
Priority to CH1654167A priority patent/CH485036A/en
Priority to BE707024D priority patent/BE707024A/xx
Priority to FR129553A priority patent/FR1547838A/en
Publication of GB1196599A publication Critical patent/GB1196599A/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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • 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
    • D01F9/225—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 from stabilised polyacrylonitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Filaments (AREA)

Abstract

1,196,599. Polyacrylonitrile filaments. COURTAULDS Ltd. 23 Nov., 1967 [24 Nov., 1966; 14 Dec., 1966; 17 Jan., 1967], Nos. 52634/66, 55988/66 and 2371/67. Heading BSB. [Also in Division C1] Polyacrylonitrile fibres of improved tenacity are made by spinning a solution of polyacrylonitrile in an aqueous solution of an inorganic salt into a spin bath containing water or a more dilute solution of that inorganic salt, passing the resultant tow into at least one pre-heating bath containing heated water or a heated aqueous solution wherein the tow is stretched, and further stretching the tow in steam by from 6 to 24 times. Acrylonitrile homo-polymers or copolymers containing at least 80% by weight of acrylonitrile units may be used, e.g. copolymers with such other monomers as styrene, methylacrylate, itaconic acid, methallyl sulphonic acid and its salts, vinyl acetate and vinyl pyridine. Suitable spinning solvents include aqueous solutions of alkali metal and alkaline earth metal halides and of the halides of certain other metals, but the preferred solvent is an aqueous solution of an alkali metal thiocyanate especially sodium thiocyanate. After spinning, the tow may be stretched either in one preheating bath at a temperature of 10‹ to 80‹ C., or in at least two preheating baths the first of which is at a temperature of 10‹ to 80‹ C. and the second of which and any subsequent bath are at a higher temperature within the range from 40‹ to 90‹ C. The tow in the or each preheating bath is suitably stretched by up to 4 times. Such preheating bath may contain e.g. 1 to 10% by weight of sodium thiocyanate. The tow is then stretched in steam, by up to 16 times, or preferably in a mixture of steam and hot air (thus enabling temperatures greater than 100‹ C. to be employed), suitably from 1À5 to 12 times, the amount of stretch applied in the steam bath or steam and hot air bath being sufficient to bring the total stretch within the range of by from 6 to 24 times. When steam alone is used in this stretching stage the amount of stretch applied in the steam is preferably sufficient to bring the total stretch within the range from 12 to 22 times. After these treatments the fibres are washed, finished and dried in known manner. Fibres so made have a tenacity of 4 to 9 grams per denier, an extension of 20 to 30%, a crushing resistance greater than 90% and a drying contraction of from 10 to 20%. Fibres stretched in the second stage in steam alone have an initial modulus greater than 50 gpd. and a hot wet plasticity of from 10 to 20%, while those which have been stretched in a mixture of steam and hot air have initial moduli substantially greater than this, and still lower hot wet plasticities. Fibres having these properties are especially suitable for conversion into filamentary carbon. (For details, see Division Cl.)
GB2371/67A 1966-11-24 1966-11-24 Polyacrylonitrile and carbon fibre production Expired GB1196599A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB2371/67A GB1196599A (en) 1966-11-24 1966-11-24 Polyacrylonitrile and carbon fibre production
NL6715999A NL6715999A (en) 1966-11-24 1967-11-24
DE19671669385 DE1669385A1 (en) 1966-11-24 1967-11-24 Process for the production of polyacrylonitrile fibers
CH1654167A CH485036A (en) 1966-11-24 1967-11-24 Process for the production of acrylonitrile homo- or copolymer fibers
BE707024D BE707024A (en) 1966-11-24 1967-11-24
FR129553A FR1547838A (en) 1966-11-24 1967-11-24 Improvements to textile fibers, especially polyacrylonitrile fibers

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB5263466 1966-11-24
GB2371/67A GB1196599A (en) 1966-11-24 1966-11-24 Polyacrylonitrile and carbon fibre production
GB5598866 1966-12-14

Publications (1)

Publication Number Publication Date
GB1196599A true GB1196599A (en) 1970-07-01

Family

ID=27254068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2371/67A Expired GB1196599A (en) 1966-11-24 1966-11-24 Polyacrylonitrile and carbon fibre production

Country Status (6)

Country Link
BE (1) BE707024A (en)
CH (1) CH485036A (en)
DE (1) DE1669385A1 (en)
FR (1) FR1547838A (en)
GB (1) GB1196599A (en)
NL (1) NL6715999A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106637519A (en) * 2016-11-29 2017-05-10 江西师范大学 Preparation method of oleic acid/acrylonitrile copolymer based carbon fiber
US10407802B2 (en) 2015-12-31 2019-09-10 Ut-Battelle Llc Method of producing carbon fibers from multipurpose commercial fibers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061744B1 (en) * 1969-09-16 1975-02-21 Nat Res Dev
FR2568273B1 (en) * 1983-04-20 1986-12-19 Japan Exlan Co Ltd POLYACRYLONITRILE FIBER WITH HIGH MECHANICAL STRENGTH AND PROCESS FOR PRODUCING THE SAME

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10407802B2 (en) 2015-12-31 2019-09-10 Ut-Battelle Llc Method of producing carbon fibers from multipurpose commercial fibers
US10961642B2 (en) 2015-12-31 2021-03-30 Ut-Battelle, Llc Method of producing carbon fibers from multipurpose commercial fibers
CN106637519A (en) * 2016-11-29 2017-05-10 江西师范大学 Preparation method of oleic acid/acrylonitrile copolymer based carbon fiber

Also Published As

Publication number Publication date
CH485036A (en) 1970-01-31
DE1669385A1 (en) 1969-10-30
FR1547838A (en) 1968-11-29
BE707024A (en) 1968-04-01
NL6715999A (en) 1968-05-27

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Legal Events

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