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Title: Controlled chemical stabilization of polyvinyl precursor fiber, and high strength carbon fiber produced therefrom

Method for the preparation of carbon fiber, which comprises: (i) immersing functionalized polyvinyl precursor fiber into a liquid solution having a boiling point of at least 60.degree. C.; (ii) heating the liquid solution to a first temperature of at least 25.degree. C. at which the functionalized precursor fiber engages in an elimination-addition equilibrium while a tension of at least 0.1 MPa is applied to the fiber; (iii) gradually raising the first temperature to a final temperature that is at least 20.degree. C. above the first temperature and up to the boiling point of the liquid solution for sufficient time to convert the functionalized precursor fiber to a pre-carbonized fiber; and (iv) subjecting the pre-carbonized fiber produced according to step (iii) to high temperature carbonization conditions to produce the final carbon fiber. Articles and devices containing the fibers, including woven and non-woven mats or paper forms of the fibers, are also described.
Inventors:
Issue Date:
OSTI Identifier:
1337674
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN ORNL
Patent Number(s):
9,528,197
Application Number:
13/860,188
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2013 Apr 10
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

Use of sulfonation procedure for the development of thermally stabilized isotactic polypropylene fibers prior to carbonization
journal, July 2011
  • Karacan, Ismail; Benli, Huseyin
  • Journal of Applied Polymer Science, Vol. 123, Issue 1, p. 234-245
  • DOI: 10.1002/app.34454

The effect of diameter on the mechanical properties of amorphous carbon fibres from linear low density polyethylene
journal, March 1991
  • Penning, J. P.; Lagcher, R.; Pennings, A. J.
  • Polymer Bulletin, Vol. 25, Issue 3, p. 405-412
  • DOI: 10.1007/BF00316913

Amorphous carbon fibres from linear low density polyethylene
journal, October 1990
  • Postema, A. R.; De Groot, H.; Pennings, A. J.
  • Journal of Materials Science, Vol. 25, Issue 10, p. 4216-4222
  • DOI: 10.1007/BF00581075

Structure and properties development during the conversion of polyethylene precursors to carbon fibers
journal, October 1996

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