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Int. J. Mol. Sci. 2011, 12(2), 1175-1186; doi:10.3390/ijms12021175

Development of a Chitosan-Based Biofoam: Application to the Processing of a Porous Ceramic Material

Laboratoire d’Ingénierie pour les Systèmes Complexes, CEMAGREF, Campus des Cézeaux 24 avenue des Landais—BP 50085, 63172 Aubière Cedex, France
Laboratoire Groupe d’Etude des Matériaux Hétérogènes (GEMH—ENSCI EA 3178) Centre Européen de la Céramique—12 rue Atlantis, 87068 Limoges Cedex, France
Clermont Université, Laboratoire de Génie Chimique et Biochimique, Université Blaise Pascal, Polytech’ Clermont Ferrand, 24 avenue des Landais BP 206, 63174 Aubière cedex, France
Author to whom correspondence should be addressed.
Received: 10 November 2010 / Revised: 9 February 2011 / Accepted: 11 February 2011 / Published: 16 February 2011
(This article belongs to the Special Issue Chitins)
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Developing biofoams constitutes a challenging issue for several applications. The present study focuses on the development of a chitosan-based biofoam. Solutions of chitosan in acetic acid were dried under vacuum to generate foams with high-order structures. Chitosan concentration influenced significantly the morphology of developed porosity and the organization of pores in the material. Physico-chemical characterizations were performed to investigate the effects of chitosan concentration on density and thermal conductivity of foams. Even if chitosan-based biofoams exhibit interesting insulating properties (typically around 0.06 W·m−1·K−1), it has been shown that their durabilities are limited when submitted to a wet media. So, a way of application consists to elaborate a ceramic material with open porosity from a slurry prepared with an organic solvent infiltrating the porous network of the foam.
Keywords: chitosan; biofoam; ceramic slurry chitosan; biofoam; ceramic slurry
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Mathias, J.-D.; Tessier-Doyen, N.; Michaud, P. Development of a Chitosan-Based Biofoam: Application to the Processing of a Porous Ceramic Material. Int. J. Mol. Sci. 2011, 12, 1175-1186.

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