Aging properties of styrene-butadiene rubber nanocomposites filled with carbon black and rectorite |
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| Institution: | 1. Beijing Key Laboratory of Novel Thin Film Solar Cells, North China Electric Power University, Beijing, 102206, China;2. Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China;1. LabMAT, Department of Civil and Environmental Engineering, University of Bío-Bío, 4051381 Concepción, Chile;2. Department of Mechanical Engineering, University of the Basque Country, 48013 Bilbao, Spain;1. Universidade Federal do Rio de Janeiro, Instituto de Macromoléculas Professora Eloisa Mano (IMA/UFRJ), Rio de Janeiro, RJ, Brazil;2. Universidade do Estado do Rio de Janeiro, Instituto de Química (IQ/UERJ), Rio de Janeiro, RJ, Brazil;3. Centro de Tecnologia Mineral (CETEM), Rio de Janeiro, RJ, Brazil;4. Universidade do Estado do Rio de Janeiro, Instituto Politécnico do Rio de Janeiro (IPRJ/UERJ), Nova Friburgo, RJ, Brazil;5. Centro de Pesquisa e Desenvolvimento Leopoldo Américo Miguez de Mello - CENPES/PETROBRAS, Rio de Janeiro, RJ, Brazil;6. Universidade Federal do Rio Grande do Sul, Instituto de Química (IQ/UFRGS), Porto Alegre, Rio de Grande do Sul, Brazil;7. Universidade Federal do Rio de Janeiro, Programa de Engenharia Ambiental, Escola Politécnica (PEA/UFRJ), Rio de Janeiro, RJ, Brazil;1. The State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;2. University of Chinese Academy Sciences, Beijing 100049, China |
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| Abstract: | To better understand the effect of rectorite and carbon black (CB) on the aging performance of styrene-butadiene rubber (SBR), SBR/CB, SBR/CB/rectorite and SBR/rectorite nanocomposites with the same total filler loading were prepared. The microstructure of the three SBR nanocomposites was characterized by XRD, TEM and SEM. After thermal aging, oxygen-containing molecules were found to be formed in the SBR nanocomposites, as verified by FTIR analysis. The SBR/rectorite nanocomposite showed the highest aging coefficient and the lowest change rate of tensile strength and stress at 100% strain among the three SBR nanocomposites, indicating that the introduction of nano-dispersed rectorite layers can enhance the thermal aging resistance of the nanocomposites. For the SBR/CB/rectorite nanocomposite, the addition of CB helped to improve the interfacial compatibility between the filler and matrix, resulting in the best crack resistance as the aged SBR/CB/rectorite nanocomposite always demonstrated the least cracks on the surface during either stretching or bending experiments. |
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| Keywords: | Rectorite Carbon black Thermal aging Styrene-butadiene rubber |
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