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DOE OSTI · 1651276

A Facile Degumming Method of Kenaf Fibers Using Deep Eutectic Solution

Nie, Kai·Liu, Bingxu·Zhao, Tao·Wang, Hongyan·Song, Yan·Ben, Haoxi·Ragauskas, Arthur J.·Han, Guangting·Jiang, Wei
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Abstract

An eco-friendly and effective degumming method needed to be developed for producing kenaf bast fibers. As such, this study devised a novel deep eutectic solvent (DES) method coupled with microwave and alkaline-ultrasonic treatment. The novel method could effectively remove the gummy matters, providing a smooth and clean fiber surface. The properties of the fibers were assessed including chemical compositions, surface structure, crystallinity index (66.68%) and thermal properties. The residual gum content (9.419%), fiber fineness (4.125tex), breaking tenacity (13.650 cn/tex) of the refined dry fibers produced by the novel treatment were comparable with the fibers produced by the traditional two-step alkali boiling method. Besides, the novel method could reduce the usage of chemical, water and time by 48.9%, by 66.7% and 66.8%, respectively. These results revealed that the novel combined DES pretreatment is a practical and feasible pretreatment method for kenaf bast degumming, demonstrating its facile, green energy-saving and fast properties in the degumming process.

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRYDESkenaffibermicrowavenatural fibersultrasonic

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Nie, Kai, Liu, Bingxu, Zhao, Tao, Wang, Hongyan, Song, Yan, Ben, Haoxi, Ragauskas, Arthur J., Han, Guangting, Jiang, Wei. 2020-08-04. A Facile Degumming Method of Kenaf Fibers Using Deep Eutectic Solution. https://doi.org/10.1080/15440478.2020.1795778

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