A mild method of wood impregnation with biopolymers and resins using 1-ethyl-3-methylimidazolium chloride as carrier

作者：Croitoru Catalin; Patachia Silvia^*; Lunguleasa Aurel

来源：Chemical Engineering Research and Design, 2015, 93: 257-268.

DOI：10.1016/j.cherd.2014.04.031

• Wood impregnation
• Chitosan
• Zein
• Gelatine
• Alkylimidazolium based ionic liquids

The paper presents a new method of wood surface impregnation with biopolymers and resins, such as chitosan, zein, gelatine and guaiac resin, by using 1-ethyl-3-methylimidazolium chloride ionic liquid as solvent-carrier. The mentioned compounds diffuse into the wood, and by ionic liquid removal and drying, are able to form a uniform coating that confers higher moisture resistance, dimensional stability of wood and greater hardness than non-impregnated material. The main advantages of the proposed method of impregnation are the usage of a new solvent such as 1-ethyl-3-methylimidazolium chloride, and considerably lower temperatures (40 degrees C) than conventional processes of impregnation (100-200 degrees C). Another advantage of the proposed method is the higher solubility in the ionic liquid for the mentioned impregnants, as opposed to water or other molecular solvents.

• 出版日期2015-1