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Method of improving adhesion of carbon fibers with a polymeric matrix

Patent ·
OSTI ID:1600219
; ;
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 of no more than about 0.6.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
10,457,785
Application Number:
15/158,053
OSTI ID:
1600219
Country of Publication:
United States
Language:
English

References (8)

Plasma-graft polymerization of a monomer with double bonds onto the surface of carbon fiber and its adhesion to a vinyl ester resin journal September 2003
Carbon Fiber—Vinyl Ester Interfacial Adhesion Improvement by the Use of an Epoxy Coating book December 2008
Fatigue performance of carbon fibre/vinyl ester composites: the effect of two dissimilar polymeric sizing agents journal July 1998
Structure—Property Relations of Polyethertriamine-Cured Bisphenol-A-diglycidyl Ether Epoxies book June 1983
Pultruded Carbon Fiber/Vinyl Ester Composites Processed with Different Fiber Sizing Agents. Part II: Enviro-Mechanical Durability journal June 2005
Designed Interphase Regions in Carbon Fiber Reinforced Vinyl Ester Matrix Composites journal December 1999
Enhanced interfacial adhesion of carbon fibers to vinyl ester resin using poly(arylene ether phosphine oxide) coatings as adhesion promoters journal January 2000
Plasma etching and plasma polymerization coating of carbon fibers. Part 1. Interfacial adhesion study journal January 2002

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