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 language | English (US) |
|---|---|
| Pages (from-to) | 902-906 |
| Number of pages | 5 |
| Journal | Polymer |
| Volume | 22 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 1981 |
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry