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Energy absorption of a polyacrylic acid partial sodium salt-modified nanoporous system

Published online by Cambridge University Press:  01 May 2006

Falgun B. Surani  and
Yu Qiao
Falgun B. Surani
Affiliation:
Department of Civil Engineering, University of Akron, Akron, Ohio 44325-3905
Yu Qiao*
Affiliation:
Department of Civil Engineering, University of Akron, Akron, Ohio 44325-3905
*
a) Address all correspondence to this author. e-mail: yqiao@uakron.edu
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Abstract

We experimentally investigated the pressure-induced infiltration of a nanoporous silica-based energy absorption system modified by polyacrylic acid partial sodium salt (sodium polyacrylate). Under ambient conditions, sodium polyacrylate forms a soft matter with water. As the hydrostatic pressure increases, the dehydration of the soft matter occurs and the nanopores are filled by water molecules, accompanied by a significant energy dissipation. This result has fundamental scientific interest for understanding behaviors of confined liquids and great technological importance for developing advanced solid-like protective/damping materials.

Keywords

AbsorptionNanoscaleStructural
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 5 , May 2006 , pp. 1327 - 1330
Copyright
Copyright © Materials Research Society 2006

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