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Properties of waterborne polyurethane/nanosilica composite

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Abstract

Aqueous emulsion of polyurethane (PU) ionomers were reinforced with hydrophobic nanosilica to give composites. The aqueous emulsion was stable and the particle size increased as the content of hydrophobic nanosilica was increased. The reinforcing effect of nanosilica in mechanical properties of these composites were examined by dynamic mechanical and tensile tests, and the Shore A hardness was measured. Enhanced thermal and water resistance and marginal reduction in transparency of these composites were observed compared with pristine polymer. These results were similar with those of our previous studies on waterborne PU/organoclay nanocomposites.

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Authors and Affiliations

  1. Department of Polymer Science and Engineering, Pusan National University, 609-749, Busan, Korea

    Byung Kyu Kim & Jang Won Seo

  2. Research Center for Machine Parts and Materials Processing, Department of Chemistry, University of Ulsan, 680-749, Ulsan, Korea

    Han Mo Jeong

Authors
  1. Byung Kyu Kim
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  2. Jang Won Seo
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  3. Han Mo Jeong
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Kim, B.K., Seo, J.W. & Jeong, H.M. Properties of waterborne polyurethane/nanosilica composite. Macromol. Res. 11, 198–201 (2003). https://doi.org/10.1007/BF03218353

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  • DOI: https://doi.org/10.1007/BF03218353

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