Kinetics and mechanism of the epoxide-amine polyaddition |
| |
Authors: | H J Flammersheim |
| |
Institution: | a Chemisch-Geowissenschaftliche Fakultät, Institut für Physikalische Chemie, Friedrich-Schiller Universität Jena, Lessingstrasse 10 D 07743 Jena Germany |
| |
Abstract: | The mechanism and kinetics of the epoxide-amine polyaddition reaction have been studied by isothermal and scanning DSC measurements. The initial concentrations of the reactants (epoxides: bisphenol-A-diglycidyl ether (DGEBA) and phenyl glycidyl ether (PGE), amines: N,N′-dibenzylethylenediamine (DBED) and aniline) in our model systems have been strongly varied. The suggested kinetic model describes the reaction behavior of mixtures with any initial epoxide/amine ratios over the whole range of cure by a single parameter set. To find the optimum kinetic parameters, we have solved the set of differential equations numerically by the technique of multivariate non-linear regression (Mult-NLR). Excellent agreement was obtained between calculated and experimental curves. |
| |
Keywords: | Curing DSC Epoxy Kinetics Mechanism |
本文献已被 ScienceDirect 等数据库收录! |
|