Preparation and Surface Properties Investigation of Lignin-Phonls Non-Ionic Surfactant

Abstract:

Surfactants from modified lignin have received growing attention recently. Lignin is an inevitable by-product of the chemical manufacturing processes for cellulose and pulping. Furthermore, this class of chemical has vast availability around the world. Due to the interactions of hydrophobic and hydrophilic groups on the interface, lignin modified surfactants present favorable surfactivity. In this paper, alkali lignin (AL) suffered the liquefaction treatment into liquefid alkali lignin (L-AL), of which major constituents were lignin-phenols. Hydrophilic modified L-AL was synthesized with epoxy chloropropane then with polyglycol. The surface tension, watersolubility and HLB value of the productions were characterized. Then the surfactant was applied to the experiments of foam properties, detergency and emulsifying power. The results showed that the modified surfactant had fine solubility in water, relatively higher HLB value of 16.26 and lower surface tention. The production had lower foaming power and foam stability. Though its decontamination performance was relatively weak，however the emulsifying power presented pretty well.

• Periodical: Advanced Materials Research (Volume 647)
• Pages: 762-768
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.647.762
• Online since: January 2013
• Authors: Cui Ping Mao, Shu Bin Wu
• Keywords: Lignin, Non-Ionic Surfactant, Surface Properties

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