Mechanistic kinetic model of an epoxy resin cured with a mixture of amines of different functionalities

POLYMER

卷:46

Article

Blanco, M ; Corcuera, MA ; Riccardi, CC ; Mondragon, I

关键词: thermosets;    kinetic;    mechanistic model;   

DOI  :  10.1016/j.polymer.2005.06.117

来源: Elsevier

【 摘 要 】

The polymerization kinetics of a monoamine (p-toluidine), a diamine (4,4-diaminodiphenylmethane) or a mixture of both amines reacted with an epoxy prepolymer, diglycidylether of bisphenol A (DGEBA), was analyzed using differential scanning calorimetry. A simple mechanistic model, consisting of an epoxy-hydroxyl complex formation out of equilibrium, including the possibility that amino hydrogens react with free epoxy groups or with the epoxy-hydroxyl complex, and taking into account the possible difference of the reactivity of amino hydrogens, provided a reasonable fitting of the whole set of experimental results with a lonely set of activation energies. (c) 2005 Elsevier Ltd. All rights reserved.

【 授权许可】

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