Global to push GA events into
skip to main content

Title: Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in a polymeric matrix

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 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.
Inventors:
;
Issue Date:
OSTI Identifier:
1351078
Assignee:
UT-BATTELLE, LLC ORNL
Patent Number(s):
9,617,398
Application Number:
14/107,416
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2013 Dec 16
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Other works cited in this record:

Alkenyl Isocyanate-Substituted Carbamates
patent, November 1960

Triphenylmethane Tetraisocyanate Derivatives
patent, December 1972

Adhesives Containing Diphenylmethane Tetraisocyanate Derivatives
patent, October 1973

Preparation of alkenyl isocyanates
patent, August 1975

Tetraisocyanate compositions
patent, September 1975

Reaction products of alkyl and alkenyl succinic acids and ether diamines
patent, April 1982

Mixtures of alkyl and alkenyl succinic acids and polymer acids
patent, April 1985

Alkylated triamines and higher polyamines as curing agents in polyurethane manufacture
patent, November 1987

Fiber reinforced thermosetting resin compositions with coated fibers for improved toughness
patent, April 1988

Sizing agent for carbon fibers
patent, November 1988

Isocyanurate polyisocyanate and its use as a curing agent for a two-component polyurethane composition
patent, January 1989

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

Prepreg fabric and honeycomb sandwich panel
patent, August 2002

Curable resin composition
patent, September 2009

Epoxy resin composition for carbon-fiber-reinforced composite material, prepreg, integrated molding, fiber-reinforced composite sheet, and casing for electrical/electronic equipment
patent, September 2011

Method for enhancing adherence of carbon fibers with respect to an organic matrix
patent, December 2012

Fatigue performance of carbon fibre/vinyl ester composites: the effect of two dissimilar polymeric sizing agents
journal, July 1998

Mechanical and Thermal Properties of Chemically Modified Epoxy Resin
journal, January 2012
  • Ikram, Sumeera; Munir, Arshad
  • Open Journal of Synthesis Theory and Applications, Vol. 01, Issue 03, p. 36-43
  • DOI: 10.4236/ojsta.2012.13007

Plasma etching and plasma polymerization coating of carbon fibers. Part 1. Interfacial adhesion study
journal, January 2002
  • Kang, H. M.; Kim, N. I.; Yoon, T. H.
  • Journal of Adhesion Science and Technology, Vol. 16, Issue 13, p. 1809-1823
  • DOI: 10.1163/156856102320396157

Effect of solubility and miscibility on the adhesion behavior of polymer-coated carbon fibers with vinyl ester resins
journal, January 2000

Enhanced interfacial adhesion of carbon fibers to vinyl ester resin using poly(arylene ether phosphine oxide) coatings as adhesion promoters
journal, January 2000
  • Kim, Ick-Cheun; Yoon, Tae-Ho
  • Journal of Adhesion Science and Technology, Vol. 14, Issue 4, p. 545-559
  • DOI: 10.1163/156856100742735

Theoretical study on reaction mechanism of isocyanate radical NCO with ethene
journal, March 2009
  • Pang, Jing-Lin; Xie, Hong-Bin; Zhang, Shao-Wen
  • International Journal of Quantum Chemistry, Vol. 109, Issue 4, p. 801-810
  • DOI: 10.1002/qua.21877

Designed Interphase Regions in Carbon Fiber Reinforced Vinyl Ester Matrix Composites
journal, December 1999
  • Robertson, M. A. F.; Bump, M. B.; Verghese, K. E.
  • The Journal of Adhesion, Vol. 71, Issue 4, p. 395-416
  • DOI: 10.1080/00218469908014550

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
  • Yamada, Kenji; Yamane, Hirokazu; Kumada, Kiyoshi
  • Journal of Applied Polymer Science, Vol. 90, Issue 9, p. 2415-2419
  • DOI: 10.1002/app.12897

Similar records in DOepatents and OSTI.GOV collections: