From Natural Woods to High Density Materials: An Ecofriendly Approach

Recently, different methods have been proposed to develop wood materials, termed “densified woods”, with density increment and improvement in mechanical proprieties. Almost all the involve use of reducing agents strong bases. In this work, a new method has developed involving less polluting agents. The formation densified woods is divided into two steps: delignification involves removal lignin, hemicelluloses, shorter chains cellulose, whereas densification plastering delignified woods. obtained materials showed increase four times. were characterized by spectroscopic, microscopic, thermogravimetric techniques tests. characterizations aimed at determining variations chemical structural compositions samples after processes, showing, respectively, decrease lignin significant force necessary bring yield. final was three times higher reach yield point reached more than initial one for some studied samples. These how woods, properties, comparable densities properties process. increased allow their application place other composite woody materials.