Method of improving adhesion of carbon fibers with a polymeric matrix

Vautard, Frederic; Ozcan, Soydan; Paulauskas, Felix Leonard

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:: Vautard, Frederic; Ozcan, Soydan; Paulauskas, Felix Leonard

Issue Date:: 2019-07-16

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1568596

Patent Number(s):: 10351683

Application Number:: 15/158,036

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/249948 - Fiber is precoated

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C08J2363/00 - Characterised by the use of epoxy resins
C08J5/06 - using pretreated fibrous materials

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L63/10 - Epoxy resins modified by unsaturated compounds

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/2918 - including free carbon or carbide or therewith [not as steel]

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C08J2333/04 - esters
C08J5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
C08J2463/00 - Characterised by the use of epoxy resins

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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.

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                    Vautard, Frederic, Ozcan, Soydan, & Paulauskas, Felix Leonard. Method of improving adhesion of carbon fibers with a polymeric matrix.  United States.

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                    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.

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@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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Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix
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Vautard, Frederic; Ozcan, Soydan
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Title: Method of improving adhesion of carbon fibers with a polymeric matrix

Abstract

Citation Formats

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

Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix patent, April 2017

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

Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix
patent, April 2017