Ultrasonic Assisted Alkali-Oxidation Process for the Degumming of Kudzu Fiber

Abstract:

Fibers extracted from Kudzu have unique anti-bacterial, anti-inflammatory functions, and are promising to be fabricated into skin-care textiles. The effective way in de-gumming of the kudzu is the alkali-oxidation process. Firstly, an optimized alkali-oxidation process was proposed in consideration of three parameters including the concentration of NaOH and H₂O₂ and the immersing time. The residual pectin content and the tensile properties of the fiber were tested to characterize the retting degree. The best routine is: 5% NaOH, 4% hydrogen peroxide, treating for 3 hours. In addition, a 30min ultrasonic treatment was added after the initial 30min of alkali-oxidation scouring. The result showed that the introduction of ultrasound can significantly reduce the prop rate amounts of NaOH and H₂O₂ to 3% and 2% respectively to reach the same optimized fiber retting degree.

• Periodical: Advanced Materials Research (Volume 441)
• Pages: 106-110
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.441.106
• Online since: January 2012
• Authors: Dan Zhang, Rui Wang, Peng Cheng Zeng, Ru Quan Zhang, Lei Xu, Li Feng Xu
• Keywords: Alkali-Oxidation Process, Fiber Tensile Strength, Kudzu Fiber, Residual Pectin Content, Ultrasonic

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