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Title: Two-step sulfonation process for the conversion of polymer fibers to carbon fibers

Abstract

Disclosed herein are processes for preparing carbon fibers, comprising: sulfonating a polymer fiber with a sulfonating agent that is fuming sulfuric acid, sulfuric acid, chlorosulfonic acid, or a combination thereof; treating the sulfonated polymer with a heated solvent, wherein the temperature of the heated solvent is at least 95.degree. C.; and carbonizing the resulting product by heating it to a temperature of 501-3000.degree. C. Carbon fibers prepared according to these methods are also disclosed herein.

Inventors:
; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1408915
Patent Number(s):
9816207
Application Number:
14/413,454
Assignee:
Dow Global Technologies LLC (Midland, MI)
Patent Classifications (CPCs):
D - TEXTILES D06 - TREATMENT OF TEXTILES OR THE LIKE D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
DOE Contract Number:  
NFE-10-02991
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jul 03
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Barton, Bryan E., Patton, Jasson T., Hukkanen, Eric J., and Bernius, Mark T. Two-step sulfonation process for the conversion of polymer fibers to carbon fibers. United States: N. p., 2017. Web.
Barton, Bryan E., Patton, Jasson T., Hukkanen, Eric J., & Bernius, Mark T. Two-step sulfonation process for the conversion of polymer fibers to carbon fibers. United States.
Barton, Bryan E., Patton, Jasson T., Hukkanen, Eric J., and Bernius, Mark T. Tue . "Two-step sulfonation process for the conversion of polymer fibers to carbon fibers". United States. https://www.osti.gov/servlets/purl/1408915.
@article{osti_1408915,
title = {Two-step sulfonation process for the conversion of polymer fibers to carbon fibers},
author = {Barton, Bryan E. and Patton, Jasson T. and Hukkanen, Eric J. and Bernius, Mark T.},
abstractNote = {Disclosed herein are processes for preparing carbon fibers, comprising: sulfonating a polymer fiber with a sulfonating agent that is fuming sulfuric acid, sulfuric acid, chlorosulfonic acid, or a combination thereof; treating the sulfonated polymer with a heated solvent, wherein the temperature of the heated solvent is at least 95.degree. C.; and carbonizing the resulting product by heating it to a temperature of 501-3000.degree. C. Carbon fibers prepared according to these methods are also disclosed herein.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {11}
}

Patent:

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Works referenced in this record:

Amorphous carbon fibres from linear low density polyethylene
journal, October 1990


The effect of diameter on the mechanical properties of amorphous carbon fibres from linear low density polyethylene
journal, March 1991


Carbon Fibers from Polyethylene-Based Precursors
journal, March 1994


Use of sulfonation procedure for the development of thermally stabilized isotactic polypropylene fibers prior to carbonization
journal, July 2011