Cure kinetics of neat and graphite‐fiber‐reinforced epoxy formulations

Jovan Mijović, H. T. Wang

Research output: Contribution to journalArticlepeer-review

Abstract

An investigation was carried out into the cure kinetics of neat and graphite fiber‐reinforced epoxy formulation, composed of tetraglycidyl 4,4′‐diaminodiphenyl methane (TGDDM) resin and diaminodiphenyl sulfone (DDS) curing agent. Two experimental techniques were employed: isothermal differential scanning calorimetry (IDSC) and dynamic differential scanning calorimetry (DDSC). An autocatalytic mechanism with the overall reaction rate order of 2 was found to describe adequately the cure kinetics, of the neat resin and the composite. All kinetic parameters, including reaction rate constants, activation energies and preexponential factors, were calculated and reported. The presence of graphite fibers in the composite had only a very small initial effect on the kinetics of cure.

Original languageEnglish (US)
Pages (from-to)2661-2673
Number of pages13
JournalJournal of Applied Polymer Science
Volume37
Issue number9
DOIs
StatePublished - May 5 1989

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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