Modeling the chemorheological behavior of epoxy/liquid aromatic diamine for resin transfer molding applications
NAFFAKH, Mohammed
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
DUMON, Michel
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Team 1 LCPO : Polymerization Catalyses & Engineering
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Team 1 LCPO : Polymerization Catalyses & Engineering
GÉRARD, Jean-François
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
NAFFAKH, Mohammed
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
DUMON, Michel
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Team 1 LCPO : Polymerization Catalyses & Engineering
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Team 1 LCPO : Polymerization Catalyses & Engineering
GÉRARD, Jean-François
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
< Réduire
Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Macromoléculaires [IMP-LMM]
Langue
en
Article de revue
Ce document a été publié dans
Journal of Applied Polymer Science. 2006, vol. 102, n° 5, p. 4228-4237
Wiley
Résumé en anglais
The analysis of the chemorheological behavior of an epoxy prepolymer based on a diglycidylether of bisphenol-A (DGEBA) with a liquid aromatic diamine (DETDA 80) as a hardener was performed by combining the data obtained ...Lire la suite >
The analysis of the chemorheological behavior of an epoxy prepolymer based on a diglycidylether of bisphenol-A (DGEBA) with a liquid aromatic diamine (DETDA 80) as a hardener was performed by combining the data obtained from Differential Scanning Calorimetry (DSC) with rheological measurements. The kinetics of the crosslinking reaction was analyzed at conventional injection temperatures varying from 100 to 150 degrees C as experienced during a Resin Transfer Molding (RTM) process. A phenomenological kinetic model able to describe the cure behavior of the DGEBA/DETDA 80 system during processing is proposed. Rheological properties of this low reactive epoxy system were also measured to follow the cure evolution at the same temperatures as the mold-filling process. An empirical model correlating the resin viscosity with temperature and the extent of reaction was obtained to carry out later a simulation of the RTM process and to prepare advanced composites. Predictions of the viscosity changes were found to be in good agreement with the experimental data at low extents of cure, i.e., in the period of time required for the mold-filling stage in RTM process< Réduire
Mots clés en anglais
kinetics
rheology
modeling
differential scanning calorimetry (DSC)
curing
Origine
Importé de halUnités de recherche