Dissolution and regeneration of lignocellulosic materials with ionic liquidsBMIMCl and ([BMIM] [MeSO4]) and determination some of mechanical andphysical properties

Iranian Journal of Wood and Paper Industries

卷:4

A.Naghi Karimi¹  Ali Abdolkhani²  Ebrahim H.Marvdast³  Yahya Hamzeh⁴ 

[1] استاد،گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران;

[2] استادیار،گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران;

[3] دانشآموخته کارشناسی ارشد،گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران;

[4] دانشیار، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی، دانشگاه تهران;

关键词: Lignocellulosic materials;    Ionic liquid;    BMIMCl;    [BMIM][MeSo4];    Dissolution;    Physical and mechanical properties;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this study two imidazole-based Ionic liquids, 1- butyl -3 - methyl -1 - Imidazoliumchloride (BMIMCl) and 1- butyl -3 - Methyl Imidazolium Methyl sulfate([BMIM][MeSo4]), were used to dissolve wood flour, cellulose and CMP pulp. Theoverall evaluation indicates the inability of ([BMIM][MeSo4]) in full dissolution oflignocellulosic materials and sample treatment with this solvent was lead to watersoluble degradation products. However, dissolution trials using BMIMCl was able todissolve Lignocellulosics. Density, clarity, water absorption and thickness swelling ofregenerated cellulose films were significantly higher than that of CMP and woodflour, and CMP, higher than wood flour. Also, cellulose film have the lowest watervapor permeability compared to wood flour and CMP. Tensile strength, Young'smodulus and strain at breaking point of cellulose film were significantly higher thanthe CMP and wood flour samples.

【 授权许可】

Unknown