Method of improving adhesion of carbon fibers with a polymeric matrix

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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Show more

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C08J2363/00 - Characterised by the use of epoxy resins

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
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

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

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
C08J2463/00 - Characterised by the use of epoxy resins

Show less

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.

Copy to clipboard


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

Copy to clipboard


                    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.

Copy to clipboard


                    
@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}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Aqueous, radiation-curable coating compositions
patent, January 2000

Reich, Wolfgang; Enenkel, Peter; Keil, Edmund
US Patent Document 6,011,078
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6011078

Sizing agent for carbon fibers
patent, November 1988

Saito, Makoto; Toki, Hiroshi; Miyazaki, Makoto
US Patent Document 4,781,947
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4781947

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

McGrail, Patrick; Jenkins, Stephen D.; Carter, Jeffrey T.
US Patent Document 6,013,730
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6013730

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

McAliley, J. Eugene; Daumit, Gene P.; Ethridge, Fredrick A.
US Patent Document 4,714,642
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4714642

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

Grosse-Puppendahl, Thomas; Baron, Christian; Schmidt, Friedrich
US Patent Document 5,338,789
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5338789

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

Mack, Patrick E.; Smith, Mitchell D.
US Patent Document 7,431,789
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7431789

Epoxy acrylate resins and their uses
patent, October 1997

Motoshima, Toshihiro; Karasawa, Akio; Takuma, Keisuke
US Patent Document 5,677,398
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5677398

Improving adhesion of acrylate resins
patent, December 2002

Reich, Wolfgang; Enenkel, Peter; Keil, Edmund
US Patent Document 6,500,878
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6500878

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

Vautard, Frederic; Ozcan, Soydan
US Patent Document 9,617,398
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9617398

Similar Records in DOE Patents and OSTI.GOV collections:

Method of improving adhesion of carbon fibers with a polymeric matrix

Patent Vautard, Frederic; Ozcan, Soydan; Paulauskas, Felix Leonard
Full Text Available
Method of improving adhesion of carbon fibers with a polymeric matrix

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

A method of making a solid composite containing carbon fibers embedded in a polymeric matrix, the method comprising admixing carbon fibers with a polymer precursor resin, and curing the polymer precursor resin to form a cured polymeric matrix that contains said carbon fibers embedded therein, wherein said carbon fibers have covalently bonded on their surfaces a partially cured epoxy-containing or amine-containing sizing agent, wherein at least a portion of epoxide groups or amine groups in the sizing agent are available as uncrosslinked epoxide groups or amine groups, which corresponds to a curing degree of epoxide groups or amine groups ofmore » no more than about 0.6.« less
Full Text Available
Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix

Patent Vautard, Frederic; Ozcan, Soydan

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 ofmore »« less
Full Text Available
Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in polymeric matrix

Patent Vautard, Frederic; Ozcan, Soydan

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 ofmore »« less
Full Text Available
Solid composites containing polymeric matrix with carbon fibers embedded therein

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

A functionalized carbon fiber having covalently bound on its surface a partially cured epoxy or amine-containing sizing agent, wherein at least a portion of epoxide or amine groups in the sizing agent are available as uncrosslinked epoxide or amine groups, which corresponds to a curing degree of epoxide or amine groups of no more than about 0.6. 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.
Full Text Available

Similar Records

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