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

International Journal of Molecular Sciences

Jean-Denis Mathias¹  Nicolas Tessier-Doyen² 

[1] 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; E-Mail:

关键词: chitosan;    biofoam;    ceramic slurry;   

DOI  :  10.3390/ijms12021175

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.