Correlations between dynamic mechanical properties and nodular morphology of cured epoxy resins

Jovan Mijović, Leelan Tsay

Research output: Contribution to journalArticlepeer-review

Abstract

Various epoxy resin formulations, based on the diglycidyl ether of bisphenol A (DGEBA) and cured with diethylene triamine (DETA) were studied. Dynamic mechanical measurements were used to characterize changes in mechanical properties as a function of temperature. The morphology of the cured resins was investigated by transmission electron microscopy. Correlations between dynamic mechanical properties and morphology were described and discussed by applying the concept of inhomogeneous (nodular) thermoset morphology. The elastic storage modulus in the glassy state was determined primarily by the internodular matrix, whereas the glass transition of cured resins depended upon the intranodular crosslink density.

Original languageEnglish (US)
Pages (from-to)902-906
Number of pages5
JournalPolymer
Volume22
Issue number7
DOIs
StatePublished - Jul 1981

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Correlations between dynamic mechanical properties and nodular morphology of cured epoxy resins'. Together they form a unique fingerprint.

Cite this