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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:
; ;
Publication 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 = {},
url = {https://www.osti.gov/biblio/1568596}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

Patent:

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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


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


Epoxy acrylate resins and their uses
patent, October 1997


Improving adhesion of acrylate resins
patent, December 2002