The effect of postcure time on the fracture properties and nodular morphology of an epoxy resin

Jovan S. Mijovic, James A. Koutsky

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of different postcure times on the fracture properties and morphology of an epoxy resin was studied. The fracture energy for crack initiation and arrest was calculated for each sample and plotted as a function of the postcure time. Nodules (25–35 nm in diameter) were observed on all fracture surfaces. Of considerable interest was the alignment of nodules in the direction of crack propagation. Longer postcure times are thought to alter the fracture energy by causing additional crosslinking in the internodular matrix.

Original languageEnglish (US)
Pages (from-to)1037-1042
Number of pages6
JournalJournal of Applied Polymer Science
Volume23
Issue number4
DOIs
StatePublished - Feb 15 1979

ASJC Scopus subject areas

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

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