Stabilization effect of potential antioxidants on the thermooxidative stability of styrene–butadiene rubber
| Autor: | Karol Kosár, Zuzana Cibulková, Peter Lehocký, Peter Šimon, Andrea Černá, Jan Uhlar |
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| Rok vydání: | 2011 |
| Předmět: |
Temperature function
Materials science Styrene-butadiene chemistry.chemical_element Condensed Matter Physics Nitrogen chemistry.chemical_compound Differential scanning calorimetry Natural rubber chemistry visual_art Polymer chemistry visual_art.visual_art_medium Organic chemistry Molecule Degradation (geology) Physical and Theoretical Chemistry Triazine |
| Zdroj: | Journal of Thermal Analysis and Calorimetry. 105:607-613 |
| ISSN: | 1572-8943 1388-6150 |
| Popis: | Effects of several heterocyclic compounds containing nitrogen, trisubstituted amines and diamines and molecules based on N,N,N′,N′,N′′,N′′-substituted-[1,3,5]triazine-2,4,6-triamine in preventing thermooxidative degradation of styrene–butadiene rubber (SBR) have been studied using non-isothermal DSC measurements. The aim of this study was to determine and compare the stabilizing effect of individual compounds and to select the structures with the best antioxidative properties. In order to compare the stabilizing effect of the compounds, induction periods and protection factors have been calculated. The treatment of the experimental data was carried out using a method based on a non-Arrhenian temperature function. The results show that better antioxidative properties can be assigned to heterocyclic compounds. On the other hand, molecules containing triazine structures exhibited only negligible stabilizing effect on SBR at lower temperatures and even destabilizing effect at higher temperatures. |
| Databáze: | OpenAIRE |
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