FR2255399A1 - Polyacrylonitrile threads for carbon fibre prodn - by polymsg acrylonitrile in zinc chloride-sodium chloride soln., and spinning-drawing - Google Patents

Polyacrylonitrile threads for carbon fibre prodn - by polymsg acrylonitrile in zinc chloride-sodium chloride soln., and spinning-drawing

Info

Publication number
FR2255399A1
FR2255399A1 FR7442360A FR7442360A FR2255399A1 FR 2255399 A1 FR2255399 A1 FR 2255399A1 FR 7442360 A FR7442360 A FR 7442360A FR 7442360 A FR7442360 A FR 7442360A FR 2255399 A1 FR2255399 A1 FR 2255399A1
Authority
FR
France
Prior art keywords
soln
spinning
sodium chloride
zinc chloride
acrylonitrile
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.)
Granted
Application number
FR7442360A
Other languages
French (fr)
Other versions
FR2255399B3 (en
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.)
Neumuenstersche Maschinen und Apparatebau GmbH
Original Assignee
Neumuenstersche Maschinen und Apparatebau 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
Priority claimed from DE19732364367 external-priority patent/DE2364367C3/en
Application filed by Neumuenstersche Maschinen und Apparatebau GmbH filed Critical Neumuenstersche Maschinen und Apparatebau GmbH
Publication of FR2255399A1 publication Critical patent/FR2255399A1/en
Application granted granted Critical
Publication of FR2255399B3 publication Critical patent/FR2255399B3/fr
Granted 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

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

Polyacrylonitrile fibres and threads for prodn. of carbon and graphite fibres are prepd. by (a) dissolving acrylonitrile and a comonomer in a highly conc. aqs. soln. of zinc chloride and sodium chloride, (b) polymerising in the presence of formaldehyde and hydrogen peroxide, under the action of 1.v. light, (c) immediately spinning the soln. into a coagulation bath, and (d) drawing during coagulation so that an oriented structure is formed in the membrane at the surface of the thread. The fibres have very high strength e.g. 12-15 g/denier and give high strength carbon and graphite fibres. The draw ratio is pref. 1/3-4. The aqs. soln. pref. also contains copper iron and manganese ions. The aqs. spinning soln. pref. contains 38-40 wt. % zinc chloride, 18-20 wt. % sodium chloride, 40-60 mg/1 manganese ions and 4-6 mg/1 iron ions.
FR7442360A 1973-12-22 1974-12-20 Polyacrylonitrile threads for carbon fibre prodn - by polymsg acrylonitrile in zinc chloride-sodium chloride soln., and spinning-drawing Granted FR2255399A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732364367 DE2364367C3 (en) 1973-12-22 Process for the production of threads from polyacrylonitrile

Publications (2)

Publication Number Publication Date
FR2255399A1 true FR2255399A1 (en) 1975-07-18
FR2255399B3 FR2255399B3 (en) 1977-09-23

Family

ID=5901839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442360A Granted FR2255399A1 (en) 1973-12-22 1974-12-20 Polyacrylonitrile threads for carbon fibre prodn - by polymsg acrylonitrile in zinc chloride-sodium chloride soln., and spinning-drawing

Country Status (6)

Country Link
AT (1) AT335044B (en)
BE (1) BE823556A (en)
ES (1) ES433212A1 (en)
FR (1) FR2255399A1 (en)
IT (1) IT1026115B (en)
NL (1) NL7416551A (en)

Also Published As

Publication number Publication date
DE2364367B2 (en) 1977-05-26
FR2255399B3 (en) 1977-09-23
BE823556A (en) 1975-04-16
NL7416551A (en) 1975-06-24
ES433212A1 (en) 1977-07-01
ATA964774A (en) 1976-06-15
DE2364367A1 (en) 1975-06-26
IT1026115B (en) 1978-09-20
AT335044B (en) 1977-02-25

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Legal Events

Date Code Title Description
ST Notification of lapse