Modelling and Prediction of the Diglycidyl Ether Bisphenol-A/2,2′-dimethyl-4,4′-methylenebis (cyclohexylamine) Reaction
| Autor: | J.A.G. Knight, Phill Dickens, Farid Fouchal, Russell A. Harris |
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| Rok vydání: | 2006 |
| Předmět: |
Standard enthalpy of reaction
Diglycidyl ether Materials science Mechanical Engineering Analytical chemistry Epoxy Cyclohexylamine Calorimetry Reaction rate chemistry.chemical_compound chemistry visual_art Polymer chemistry visual_art.visual_art_medium General Materials Science Glass transition Curing (chemistry) |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. 220:79-89 |
| ISSN: | 2041-3076 1464-4207 |
| DOI: | 10.1243/14644207jmda66 |
| Popis: | Differential scanning calorimetry is used for the analysis and quantitative evaluation of the reaction between diglycidyl ether bisphenol-A and 2,2′-dimethyl-4,4′-methylenebis (cyclohexylamine) according to changes in concentrations of reactants and products. First, this concerned determining the variation in enthalpy of reaction over time for different curing temperatures, plotting of glass transition temperatures versus time, calculation of a polynomial for glass transition temperature against fractional conversion, and the production of plots of fractional conversions versus time. Secondly, the fractional conversion data were used for the kinetic analysis. The line of best fit to these data points revealed an essentially logarithmic relationship that was used to evaluate the reaction rate, d x/d t corresponding to the conversion x, then plot the changes in concentrations (in moles) of all the reactants and products involved in the reaction versus time. This produced a quantitative prediction of the reaction over the curing period. |
| Databáze: | OpenAIRE |
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