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Title: Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix

Abstract

A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said crosslinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.

Inventors:
;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1351078
Patent Number(s):
9617398
Application Number:
14/107,416
Assignee:
UT-BATTELLE, LLC
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 C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 16
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Vautard, Frederic, and Ozcan, Soydan. Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix. United States: N. p., 2017. Web.
Vautard, Frederic, & Ozcan, Soydan. Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix. United States.
Vautard, Frederic, and Ozcan, Soydan. Tue . "Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix". United States. https://www.osti.gov/servlets/purl/1351078.
@article{osti_1351078,
title = {Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix},
author = {Vautard, Frederic and Ozcan, Soydan},
abstractNote = {A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said crosslinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {4}
}

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Works referenced in this record:

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Mechanical and Thermal Properties of Chemically Modified Epoxy Resin
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Theoretical study on reaction mechanism of isocyanate radical NCO with ethene
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Plasma-graft polymerization of a monomer with double bonds onto the surface of carbon fiber and its adhesion to a vinyl ester resin
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