Skip to Main content Skip to Navigation
Theses

Systèmes époxy-amine incluant un catalyseur externe phénolique : cinétique de réticulation-vieillissement hydrolytique

Abstract : This work concerns the study of epoxy-amine Systems containing a low content of bisphenol A. The catalytic effect of bisphenol A was studied by differential calorimetric analysis (DSC) in isotherm non-isotherm conditions A new mechanism taking account of the bisphenol A presence was proposed. In spite of ils simplicity relevant values of the kinetic and thermodynamic parameters of the proposed mechanism were obtained. This mechanism also makes it possible to envisage the curing kinetics of the different catalyst content systems. Behaviour of epoxy-amine networks in water immersion was studied by various techniques: gravimetric measurement swelling and mechanical dynamic analyzes (DMA). A curing complement in the partially crosslinked networks was observed during the water immersion at 20°C. That was related to plasticizing and catalytic effect of the water molecules. In addition, the results obtained suggest that, m the case of densely crosslinked networks, the kinetics of sorption is controlled by the distance between the polar sites of the structure. This report cannot be generalized with the whole of the networks epoxy-amine. It is indeed supposed to rise from the fairly polar character of the this study networks.
Document type :
Theses
Complete list of metadata

Cited literature [68 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00136381
Contributor : Toulon Scd <>
Submitted on : Tuesday, March 13, 2007 - 3:31:59 PM
Last modification on : Wednesday, September 19, 2018 - 10:46:02 AM
Long-term archiving on: : Tuesday, April 6, 2010 - 10:27:01 PM

Identifiers

  • HAL Id : tel-00136381, version 1

Collections

Citation

Thi Minh Hanh Nguyen. Systèmes époxy-amine incluant un catalyseur externe phénolique : cinétique de réticulation-vieillissement hydrolytique. Catalyse. Université du Sud Toulon Var, 2007. Français. ⟨tel-00136381⟩

Share

Metrics

Record views

896

Files downloads

13272