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

Jovan Mijovic, Leelan Tsay

Research output: Contribution to journalArticle

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 - 1981

Fingerprint

Epoxy Resins
Epoxy resins
Mechanical properties
Resins
Thermosets
Glass transition
Ethers
Elastic moduli
Transmission electron microscopy
Temperature

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

Correlations between dynamic mechanical properties and nodular morphology of cured epoxy resins. / Mijovic, Jovan; Tsay, Leelan.

In: Polymer, Vol. 22, No. 7, 1981, p. 902-906.

Research output: Contribution to journalArticle

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