Dissolving Behavior of Lignin in Polyethylene Glycol Aqueous Solvent
Journal Title: 河南科技大学学报（自然科学版） - Year 2019, Vol 40, Issue 1
Abstract
The eco-friendly and simply preparation solvents ( polyethylene glycol/H2O systems, PEG-200/H2O) were developed by PEG-200 and water blending method for dissolution of lignin without heating. When the mass ratio of water to PEG-200 is within the scope of ( 0 ～ 0. 30) ∶ 1, lignin solubility in the solvent PEG-200/H2O system gradually increase with the increase of mass ratio. Lignin solubility can achieve maximum ( > 105. 0 g) when the mass ratio is 0. 30∶ 1. Then with the mass ratio of water increasing, lignin solubility decreases, even not dissolve. PEG-200 affects dissolution of lignin in PEG-200/H2O solvent. The lignin did not react with the solvent in the process of dissolution and regeneration. The structure of lignin is hardly disrupted during dissolution and regeneration process.
Authors and Affiliations
Lin CHEN, Xin GUO, Airong XU, Jun ZHANG
Keywords
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- EP ID EP427040
- DOI 10.15926/j.cnki.issn1672-6871.2019.01.018
- Views 78
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