Tire tread rubber compounds with ternary system filler based on carbon black, silica, and metakaolin: Contribution of silica/metakaolin content on the final properties
| Autor: | Alessandra de Alencar Padua Gabino, Ana Maria Furtado de Sousa, Regina C. R. Nunes, Cristina R. G. Furtado, Cléverson Fernandes Senra Gabriel |
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| Rok vydání: | 2019 |
| Předmět: |
Filler (packaging)
Materials science Ternary numeral system Polymers and Plastics Rolling resistance 02 engineering and technology Carbon black 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Natural rubber visual_art Materials Chemistry visual_art.visual_art_medium Binary system Composite material Tread 0210 nano-technology Metakaolin |
| Zdroj: | Journal of Elastomers & Plastics. 51:712-726 |
| ISSN: | 1530-8006 0095-2443 |
| Popis: | Carbon black and high performance silica have been widely employed as binary system filler in tire tread formulations. This study evaluated the total and partial substitution of silica by metakaolin (MK) on the properties of tread rubber composites. Dynamic mechanical thermal analysis and abrasion tests were conducted as typical assessments of tire tread performance: rolling resistance (fuel consumption), wet traction (safety), and abrasion (durability). Further the energy spent by the equipment during the processing of formulations was also analyzed, as well as rheological and mechanical properties. A significant reduction of rolling resistance was obtained with 75% and 100% of silica substitution by MK, which could lead to lower heat buildup in tire tread applications, without showing negative effects on wet traction, although abrasion showed undesired results. The substitution of silica by MK also lowered energy demanded for processing. No major changes were observed in vulcanization parameters and mechanical properties, which is interesting considering the fact that MK is nonreinforce filler. |
| Databáze: | OpenAIRE |
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