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Aliphatic polyurethane-silica nanocomposites prepared by the parallel synthesis: Morphology and mechanical characteristics

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Abstract

Films of aliphatic polyurethane-silica composites containing up to 27.3 mol % of SiO2 nanoparticles have been prepared by the parallel synthesis using the sol-gel technology. It has been revealed that the variations in the mechanical properties of these materials with increasing concentration of nanoparticles exhibit a nontrivial behavior: the ultimate strain gradually increases, whereas the elastic modulus and the yield stress decrease. A correlation of the changes observed in the mechanical characteristics with an increase in the free volume of the material with increasing silica concentration has been established. Atomic-force microscopy has confirmed the existence of a developed system of nanopores with characteristic sizes from 15 to 100 nm in the materials under investigation.

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Authors and Affiliations

  1. Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoĭ pr. 31, St. Petersburg, 199004, Russia

    I. V. Gofman, T. E. Sukhanova, M. É. Vylegzhanina, I. V. Abalov, I. S. Stepanova, A. E. Trofimov & A. V. Ten’kovtsev

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  1. I. V. Gofman
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  2. T. E. Sukhanova
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  3. M. É. Vylegzhanina
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  4. I. V. Abalov
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  5. I. S. Stepanova
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  6. A. E. Trofimov
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  7. A. V. Ten’kovtsev
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Correspondence to I. V. Gofman.

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Original Russian Text © I.V. Gofman, T.E. Sukhanova, M.É. Vylegzhanina, I.V. Abalov, I.S. Stepanova, A.E. Trofimov, A.V. Ten’kovtsev, 2010, published in Fizika Tverdogo Tela, 2010, Vol. 52, No. 3, pp. 564–571.

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Gofman, I.V., Sukhanova, T.E., Vylegzhanina, M.É. et al. Aliphatic polyurethane-silica nanocomposites prepared by the parallel synthesis: Morphology and mechanical characteristics. Phys. Solid State 52, 612–619 (2010). https://doi.org/10.1134/S1063783410030248

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  • DOI: https://doi.org/10.1134/S1063783410030248

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