JPS57210018A - Preparation of carbon fiber - Google Patents

Preparation of carbon fiber

Info

Publication number
JPS57210018A
JPS57210018A JP9093881A JP9093881A JPS57210018A JP S57210018 A JPS57210018 A JP S57210018A JP 9093881 A JP9093881 A JP 9093881A JP 9093881 A JP9093881 A JP 9093881A JP S57210018 A JPS57210018 A JP S57210018A
Authority
JP
Japan
Prior art keywords
infusible
fibers
heat
temperature
coal tar
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
JP9093881A
Other languages
Japanese (ja)
Other versions
JPS6030363B2 (en
Inventor
Mikio Oyabu
Kenji Fukuda
Keiichi Hirata
Keisuke Takei
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.)
Mitsui Coke Co Ltd
Original Assignee
Mitsui Coke Co Ltd
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 Mitsui Coke Co Ltd filed Critical Mitsui Coke Co Ltd
Priority to JP56090938A priority Critical patent/JPS6030363B2/en
Publication of JPS57210018A publication Critical patent/JPS57210018A/en
Publication of JPS6030363B2 publication Critical patent/JPS6030363B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Working-Up Tar And Pitch (AREA)
  • Inorganic Fibers (AREA)

Abstract

PURPOSE: To obtain carbon fibers having improved spinning property and infusibility and a high strength, by heat-treating coal tar after the removal of insoluble solid materials at a high temperature in a short time under reduced pressure, melt spinning the resultant tar, making the spun fibers infusible, and carbonizing the infusible fibers.
CONSTITUTION: A coal tar or coal tar pitch after the removal of insoluble solid materials is heat-treated at 420W600°C for 10min or shorter at 20mmHg abs. or below to prepare a heat-treated material, which is then melt spun at 280°C, heated from room temperature to 300°C at a given heating rate in air and kept at the temperature for 15min and made infusible. The resultant infusible fibers are then heated to 1,000°C at a given heating rate in an argon atmosphere, kept at the temperature for 15min and carbonized to give the aimed carbon fibers. Preferably, the heat treatment is carried out in the presence of a heterocyclic compound containing nitrogen, e.g. pyridine, in an amount of 3W50wt%.
COPYRIGHT: (C)1982,JPO&Japio
JP56090938A 1981-06-15 1981-06-15 Carbon fiber manufacturing method Expired JPS6030363B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090938A JPS6030363B2 (en) 1981-06-15 1981-06-15 Carbon fiber manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090938A JPS6030363B2 (en) 1981-06-15 1981-06-15 Carbon fiber manufacturing method

Publications (2)

Publication Number Publication Date
JPS57210018A true JPS57210018A (en) 1982-12-23
JPS6030363B2 JPS6030363B2 (en) 1985-07-16

Family

ID=14012386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090938A Expired JPS6030363B2 (en) 1981-06-15 1981-06-15 Carbon fiber manufacturing method

Country Status (1)

Country Link
JP (1) JPS6030363B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234985A (en) * 1985-08-08 1987-02-14 Idemitsu Kosan Co Ltd Production of pitch for carbonaceous material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386718A (en) * 1973-12-11 1978-07-31 Union Carbide Corp Manufacture of mesoophase pitch by reduced pressure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386718A (en) * 1973-12-11 1978-07-31 Union Carbide Corp Manufacture of mesoophase pitch by reduced pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234985A (en) * 1985-08-08 1987-02-14 Idemitsu Kosan Co Ltd Production of pitch for carbonaceous material

Also Published As

Publication number Publication date
JPS6030363B2 (en) 1985-07-16

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