Thermal oxidation of epoxies: Influence of diamine hardener
Article dans une revue avec comité de lecture
Auteur
ERNAULT, Esteve 
FAYOLLE, Bruno RICHAUD, EmmanuelRésumé
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(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lecture;FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2017)
Thermal oxidation of three epoxy resins differing by the nature of prepolymer (bisphenol A diglycidyl ether and 1,4-butanediol diglycidyl ether) and hardener (isophorone diamine and 4,7,10-Trioxa-1,13-tridecanediamine) was ...
-
Article dans une revue avec comité de lecture;FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2017)
Thermal oxidation of three epoxy resins prepared from flexible or rigid prepolymers and hardeners was studied by monitoring epoxy mechanical and physical changes. The physical changes were followed by mass measurements, ...
-
Article dans une revue avec comité de lecture; ;FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2019)
A methodology to predict the formation of superficial stress during the diffusion-limited oxidation of thick epoxy/amine samples is proposed. This quantitative methodology is based on the understanding of mechanisms ...
-
Article dans une revue avec comité de lecture; ; ;FAYOLLE, Bruno; RICHAUD, Emmanuel (Institut Français du Pétrole, 2015)
This paper deals with polymer-fuel interaction focusing on specific effects of biofuels on polyethylene (PE) in automotive applications. The practical objective is to develop a predictable approach for durability of ...
-
Article dans une revue avec comité de lecture; ;FAYOLLE, Bruno; RICHAUD, Emmanuel (Elsevier, 2016)
The thermal oxidative ageing of vinyl ester and unsaturated polyester was studied at temperatures ranging from 120 to 160°C and oxygen pressures ranging from 0.02 to 2.0 MPa. The oxidation of both materials was shown to ...