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Modified calcium silicates as active rubber fillers

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Abstract

The physicochemical characteristics of calcium silicates obtained from the reaction of sodium metasilicate solution with calcium nitrate are given. Further, studies of the modification of the silicate surface with silane and titanate coupling agents are presented. By wettability measurements and an analysis of the chemically adsorbed carbon arising from the coupling agents, the degree of modification of these surfaces was estimated. The modification of the surface of the silicates with the same agents, but in the presence of acid protons, was also performed with a positive effect. The usefulness of modifications is justified by the results of strength studies of vulcanizates filled with the modified silicates.

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Authors and Affiliations

  1. Institute of Chemical Technology and Engineering, Politechnika Poznańska, Sklodowskiej-Curie 2, 60-965, Poznań, Poland

    Andrzej Krysztafkiewicz

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  1. Andrzej Krysztafkiewicz
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Krysztafkiewicz, A. Modified calcium silicates as active rubber fillers. J Mater Sci 22, 478–482 (1987). https://doi.org/10.1007/BF01160756

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  • DOI: https://doi.org/10.1007/BF01160756

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