Elsevier

Polymer

Volume 33, Issue 7, 1992, Pages 1379-1383
Polymer

Polymer paper
The toughening of epoxy resins with thermoplastics: 1. Trifunctional epoxy resin-polyetherimide blends

https://doi.org/10.1016/0032-3861(92)90110-IGet rights and content

Abstract

A series of blends has been prepared by adding a polyetherimide, in varying proportions, to a trifunctional epoxy resin, triglycidylparaaminophenol, cured with 4,4′-diaminodiphenylsulphone. All the materials showed two-phase morphology when characterized by dynamic mechanical thermal analysis and scanning electron microscopy. Addition of the thermoplastic resulted in improved fracture properties (K1C and G1C), as measured by three-point bending experiments, although no obvious correlation with blend morphology was observed.

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