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Article Dans Une Revue International Journal of Molecular Sciences Année : 2011

Development of a chitosan-based biofoam: Application to the processing of a porous ceramic material

Résumé

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.
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Dates et versions

hal-00615508 , version 1 (19-08-2011)

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Jean-Denis Mathias, Nicolas Tessier-Doyen, Philippe Michaud. Development of a chitosan-based biofoam: Application to the processing of a porous ceramic material. International Journal of Molecular Sciences, 2011, 12 (2), pp.1175-1186. ⟨10.3390/ijms12021175⟩. ⟨hal-00615508⟩
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