Cure kinetics of epoxy/MWCNTs nanocomposites: Isothermal calorimetric and rheological analyses
المؤلف | Vijayan, Poornima |
المؤلف | Puglia, Debora |
المؤلف | Rastin, Hadi |
المؤلف | Saeb, Mohammad Reza |
المؤلف | Shojae, Behrouzi |
المؤلف | Formelaf, Krzysztof |
تاريخ الإتاحة | 2020-08-20T11:44:17Z |
تاريخ النشر | 2017 |
اسم المنشور | Progress in Organic Coatings |
المصدر | Scopus |
الملخص | A combinatorial route has been applied in cure kinetics study of epoxy nanocomposites containing multi-walled carbon nanotubes (MWCNTs) based on differential scanning calorimetry and rheokinetic analyses under isothermal conditions. Pristine and amine-modified MWCNTs bearing primary and secondary amines were used at very low concentrations (0.1 and 0.3wt.% based on epoxy weight). Model-free and model-fitting methods were applied on calorimetric data, and Kamal autocatalytic model revealed good agreement with the experimental data. In case of epoxy filled with amine-modified MWCNTs, activation energy took a value lower than that obtained for sample containing pristine MWCNTs at an identical loading because of less hindrance brought about by curing. Isothermal rheokinetic studies supported formation of a filler network during processing, which hindered epoxy-anhydride cure reaction at higher MWCNTs loadings leading to a highly crosslinked epoxy network. |
اللغة | en |
الناشر | Elsevier B.V. |
الموضوع | Amine functionalization Anhydride Epoxy Isothermal cure kinetics Rheological behavior |
النوع | Article |
الصفحات | 75-83 |
رقم المجلد | 108 |
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