Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
596729 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2008 | 4 Pages |
Abstract
The comparison of the FTIR spectra indicated that the sulfonation without caused changes in the main structure of lignin and only in the lignin chains. The surface properties, e.g. the surface free energy and related components, e.g. the Lifshitz–van der Waals and Lewis acid–base interactions components, of lignin and lignosulfonates, LGSs, with different ions, e.g. Na+–, Mg2+–, and Ca2+–, studied and compared by wicking technique indicated that the surface free energy of lignin is lower than that of all used LGSs. This suggests that the sulfonation can enhance the surface property for lignin by increasing of the Lifshitz–van der Waals component and Lewis base component of lignin.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Qing Shen, Tao Zhang, Mei-Fang Zhu,