Get access

Effects of freezing conditions on the morphology and mechanical properties of clay and polymer/clay aerogels

Authors

  • Yuxin Wang,

    1. Department of Macromolecular Science & Engineering, Case Western Reserve University, Cleveland, Ohio 44106
    Search for more papers by this author
  • Matthew D. Gawryla,

    1. Department of Macromolecular Science & Engineering, Case Western Reserve University, Cleveland, Ohio 44106
    Search for more papers by this author
  • David A. Schiraldi

    Corresponding author
    1. Department of Macromolecular Science & Engineering, Case Western Reserve University, Cleveland, Ohio 44106
    • Department of Macromolecular Science & Engineering, Case Western Reserve University, Cleveland, Ohio 44106
    Search for more papers by this author

Abstract

Clay aerogels and poly(vinyl alcohol)/clay aerogels were prepared via an environmental friendly freeze-drying process. Both mechanical properties and microstructures of the clay aerogels and polymer/clay aerogels were correlated to the freezing conditions. The compressive moduli of these materials increased as the freezing temperature used to produce the aerogels was decreased. Scanning electron microscopic observations suggest that the morphological variations of clay aerogels can be explained by the mechanism of ice templating that produced these structures. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

Get access to the full text of this article

Ancillary