DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method of producing carbon fibers from multipurpose commercial fibers

Abstract

A method of producing carbon fibers includes the step of providing polyacrylonitrile precursor polymer fiber filaments. The polyacrylonitrile precursor filaments include from 87-97 mole % acrylonitrile, and less than 0.5 mole % of accelerant functional groups. The filaments are no more than 3 deniers per filament. The polyacrylonitrile precursor fiber filaments can be arranged into tows of at least 150,000 deniers per inch width. The arranged polyacrylonitrile precursor fiber tows are stabilized by heating the tows in at least one oxidation zone containing oxygen gas and maintained at a first temperature T1 while stretching the tows at least 10% to yield a stabilized precursor fiber tow. The stabilized precursor fiber tows are carbonized by passing the stabilized precursor fiber tows through a carbonization zone. Carbon fibers produced by the process are also disclosed.

Inventors:
;
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1805674
Patent Number(s):
10961642
Application Number:
16/557,309
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
D - TEXTILES D01 - NATURAL OR MAN-MADE THREADS OR FIBRES D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 08/30/2019
Country of Publication:
United States
Language:
English

Citation Formats

Naskar, Amit K., and Jackson, Connie D. Method of producing carbon fibers from multipurpose commercial fibers. United States: N. p., 2021. Web.
Naskar, Amit K., & Jackson, Connie D. Method of producing carbon fibers from multipurpose commercial fibers. United States.
Naskar, Amit K., and Jackson, Connie D. Tue . "Method of producing carbon fibers from multipurpose commercial fibers". United States. https://www.osti.gov/servlets/purl/1805674.
@article{osti_1805674,
title = {Method of producing carbon fibers from multipurpose commercial fibers},
author = {Naskar, Amit K. and Jackson, Connie D.},
abstractNote = {A method of producing carbon fibers includes the step of providing polyacrylonitrile precursor polymer fiber filaments. The polyacrylonitrile precursor filaments include from 87-97 mole % acrylonitrile, and less than 0.5 mole % of accelerant functional groups. The filaments are no more than 3 deniers per filament. The polyacrylonitrile precursor fiber filaments can be arranged into tows of at least 150,000 deniers per inch width. The arranged polyacrylonitrile precursor fiber tows are stabilized by heating the tows in at least one oxidation zone containing oxygen gas and maintained at a first temperature T1 while stretching the tows at least 10% to yield a stabilized precursor fiber tow. The stabilized precursor fiber tows are carbonized by passing the stabilized precursor fiber tows through a carbonization zone. Carbon fibers produced by the process are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {3}
}

Works referenced in this record:

Process of making a carbon fiber precursor fiber bundle
patent, August 2014


Process for the Manufacture of Filamentary Carbon Products
patent, September 1971


Production of Dyeable Polyacrylonitrile Compositions and Articles
patent, September 1971


Process of thermally stabilizing pan fibers
patent, October 1993


Method of making carbon fibers and resin-impregnated carbon fibers
patent, July 1978


Acrylonitrile-based precursor fiber for carbon fiber and method for production thereof
patent, August 2002


Carbon-fiber-precursor Fiber Bundle, Carbon Fiber Bundle, and Uses Thereof
patent-application, November 2013


Method of producing carbon fiber and product thereof
patent, July 1985


Thread of carbon fiber
patent, July 1989


Production of carbon fibers from acrylonitrile based fibers
patent, August 1983


Process for producing carbon fibers
patent, September 1978


Method for Preparing Carbon Fiber Precursor
patent-application, May 2013


Apparatus and method for making carbon fibers
patent, May 2007


Rapid stabilization process for carbon fiber precursors
patent, January 1992


Carbon Nanofibers Derived from Polymer Nanofibers and Method of Producing the Nanofibers
patent-application, March 2012


Process for the preparation of carbon fiber
patent, September 1998


Carbon Fiber Bundle and Method of Producing Carbon Fiber Bundle
patent-application, June 2015


Carbon fibers
patent, April 1991


Process for producing high-strength, high-modulus carbon fibers
patent, April 1990


Production of stabilized non-burning acrylic fibers and films
patent, January 1977


High modulus pan-based carbon fiber
patent, December 1993


Process for producing carbon fiber
patent, October 1988


Process for preparing tows from composite fiber blends
patent, October 1989


Twisted Chute fir Improved Tow Stacking
patent, September 1969


Carbon Fiber-reinforced Thermoplastic Resin Composition, Molding Material, Prepreg, and Methods for Producing Same
patent-application, August 2014


Process for producing carbon fibers
patent, January 1978


Method and apparatus for producing high modulus bixial fabric
patent, March 1976


Acrylic fiber suitable for preparing carbon or graphite fibers
patent, October 1987


Process for producing carbon fibers
patent, October 1975


Process for producing carbon fibers having excellent physical properties
patent, January 1977


Process for producing carbon fibers of high tenacity and modulus of elasticity
patent, September 1991


Linear carbonaceous fiber with improved elongability
patent, April 1996


Process for the production of carbon fibers
patent, May 1979


Process for producing carbon fiber
patent, November 1975


Carbon fiber package and carbon fiber packed member
patent, August 2001


Acrylic precursor fibers suitable for preparing carbon or graphite fibers
patent, June 1982


Carbon Fiber Bundle and Method for Producing Same
patent-application, March 2016


Process of making polymeric fibers
patent, April 2001


Process for producing a precursor fiber bundle and a carbon fiber bundle
patent, October 2003


Production of Carbon Fibres and Compositions Containing Said Fibres
patent, November 1968


Production of carbon fibre
patent, October 1977


Pretreatment of pan fiber
patent, April 1987


Thick acrylic fiber tows for carbon fiber production and methods of producing and using the same
patent, June 2001


Method of simultaneously manufacturing acrylic fibers and nitrates
patent, June 1976


Carbon fiber package and process for producing the same
patent, May 2011


Carbon Fiber, Process for Production Thereof, Prepregs, and Golf Club Shafts
patent-application, August 2007


Carbon Fiber Bundle and Method of Producing Carbon Fibers
patent-application, April 2015


Method and system for producing carbon fibers
patent, September 1986