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Toughening of trifunctional epoxy system. V. Structure-property relationships of neat resin

journal contribution
posted on 01.07.2000, 00:00 authored by Russell VarleyRussell Varley, J H Hodgkin, G P Simon
This work presents an investigation into the structure-property relationships of a cured highly crosslinked epoxy/amine resin system. The mechanical, physical, and thermal properties of the cured and postcured networks were measured and compared to the chemical structures. Crosslink density was shown to be dependent upon secondary amine conversion and it determined the glass transition temperatures, water uptake, density, toughness, and compressive strength. Other properties such as compressive modulus and yield stress were determined by more short-range molecular motions. Curing at a temperature of 150 °C was shown to be the minimum temperature required to `completely' cure the network and achieve optimum mechanical, physical, and thermal properties.

History

Journal

Journal of applied polymer science

Volume

77

Issue

2

Pagination

237 - 248

Publisher

Wiley

Location

Chichester, Eng.

ISSN

0021-8995

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2000, John Wiley & Sons, Inc.