Thermal and photocuring of an acrylate-based coating resin reinforced with nanosilica particles
| Autor: | Sara Bekhradnia, Mousa Ghaemy |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Exothermic reaction
Acrylate Diglycidyl ether Materials science Surfaces and Interfaces General Chemistry Macromonomer Surfaces Coatings and Films chemistry.chemical_compound Colloid and Surface Chemistry Reaction rate constant Photopolymer Differential scanning calorimetry Chemical engineering chemistry visual_art Polymer chemistry visual_art.visual_art_medium Acrylic resin |
| Zdroj: | Journal of Coatings Technology and Research. 9:569-578 |
| ISSN: | 1935-3804 1547-0091 |
| DOI: | 10.1007/s11998-012-9401-2 |
| Popis: | A macromonomer, 1,3-bis[(2-hydroxy-3-acrylate)propyloxy]2-hydroxypropane (BHAPP) was prepared by the reaction of acrylic acid with diglycerol diglycidyl ether (DGE) in the presence of triethyl amine as a catalyst. The progress of the reaction was followed by measuring the decrease in intensity of the epoxide absorption peak at 915 cm−1, and structure of BHAPP was characterized by FTIR and 1H NMR spectroscopy. The effect of nanosilica (NS) particles as catalyst on thermal and photocuring of BHAPP was studied. The photopolymerization was carried out with the visible light using camphorquinone and N,N-dimethylaminoethylmethacrylate (DMAEM) as the photoinitiating system. The kinetic parameters of thermal curing were obtained using nonisothermal differential scanning calorimeter (DSC), and the data indicated that NS particles catalyzed the cure reaction by shifting the exothermic peak toward lower temperatures, decreasing the activation energy (E a), and increasing the rate constant value. The absorption properties of the cured nanocomposites were also studied in different exposure conditions. |
| Databáze: | OpenAIRE |
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