Thermal oxidation of epoxies: Influence of diamine hardener - Archive ouverte HAL Access content directly
Journal Articles Polymer Degradation and Stability Year : 2016

Thermal oxidation of epoxies: Influence of diamine hardener

Abstract

This work reports the thermal oxidation of DGEBA resins totally cured with cycloaliphatic (isophorone diamine) or with linear aliphatic (trioxa-tridecanediamine or TTDA) diamine hardener. Chemical changes (carbonyl build-up) were monitored by FTIR and macromolecular changes (chains scission and crosslinking) from Tg variations measured by DSC. Exposition at several temperatures and under several oxygen pressures showed that DGEBA/IPDA has systematically the highest oxidation rate. It was also observed that DGEBA/IPDA undergoes mainly chain scissions whereas DGEBA/TTDA undergoes a predominant crosslinking under air being partially suppressed under enhanced oxygen pressure. Results were discussed on the basis of the possible influence of the structure of hardener.
Fichier principal
Vignette du fichier
PIMM-PDS-ERNAULT-2016.pdf (1.04 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01473986 , version 1 (22-02-2017)

Identifiers

Cite

Esteve Ernault, Emmanuel Richaud, Bruno Fayolle. Thermal oxidation of epoxies: Influence of diamine hardener. Polymer Degradation and Stability, 2016, 134, pp.76-86. ⟨10.1016/j.polymdegradstab.2016.09.030⟩. ⟨hal-01473986⟩
111 View
1631 Download

Altmetric

Share

Gmail Facebook X LinkedIn More