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Title: Method of improving adhesion of carbon fibers with a polymeric matrix

Abstract

A method of making a carbon fiber having on its surface a partially cured sizing agent, the method comprising covalently binding on the surface of said carbon fiber a sizing agent comprised of an epoxy resin, and partially curing said sizing agent by contact thereof with a curing agent such that at least a portion of epoxide groups remain uncrosslinked on said surface, which corresponds to a curing degree of epoxide groups of no more than about 0.6, and further comprising reacting at least a portion of said epoxide groups with a bifunctional molecule that contains first and second reactive groups, the first reactive group being reactive with and forming a covalent bond with the epoxy group, and the second reactive group being unsaturated and accessible for reaction with a carbon-carbon double bond of an unsaturated resin via a vinyl addition reaction.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568596
Patent Number(s):
10,351,683
Application Number:
15/158,036
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/18/2016
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Vautard, Frederic, Ozcan, Soydan, and Paulauskas, Felix Leonard. Method of improving adhesion of carbon fibers with a polymeric matrix. United States: N. p., 2019. Web.
Vautard, Frederic, Ozcan, Soydan, & Paulauskas, Felix Leonard. Method of improving adhesion of carbon fibers with a polymeric matrix. United States.
Vautard, Frederic, Ozcan, Soydan, and Paulauskas, Felix Leonard. Tue . "Method of improving adhesion of carbon fibers with a polymeric matrix". United States. https://www.osti.gov/servlets/purl/1568596.
@article{osti_1568596,
title = {Method of improving adhesion of carbon fibers with a polymeric matrix},
author = {Vautard, Frederic and Ozcan, Soydan and Paulauskas, Felix Leonard},
abstractNote = {A method of making a carbon fiber having on its surface a partially cured sizing agent, the method comprising covalently binding on the surface of said carbon fiber a sizing agent comprised of an epoxy resin, and partially curing said sizing agent by contact thereof with a curing agent such that at least a portion of epoxide groups remain uncrosslinked on said surface, which corresponds to a curing degree of epoxide groups of no more than about 0.6, and further comprising reacting at least a portion of said epoxide groups with a bifunctional molecule that contains first and second reactive groups, the first reactive group being reactive with and forming a covalent bond with the epoxy group, and the second reactive group being unsaturated and accessible for reaction with a carbon-carbon double bond of an unsaturated resin via a vinyl addition reaction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

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Works referenced in this record:

Aqueous, radiation-curable coating compositions
patent, January 2000


Sizing agent for carbon fibers
patent, November 1988


At least trifunctional epoxy resin reacted with solid rubber mixed with epoxy resin and curing agent
patent, January 2000


Carbon fiber multifilamentary tow which is particularly suited for weaving and/or resin impregnation
patent, December 1987


Fiber-reinforced polyphenylene ether molding compositions and process for their preparation
patent, August 1994


Covalently compatible in-mold coating compositions for use with epoxy
patent, October 2008


Epoxy acrylate resins and their uses
patent, October 1997


Improving adhesion of acrylate resins
patent, December 2002