Effect of Stretching Slenderization Treatment for Microstructure of Yak Hair

Abstract:

The changes on microstructure, including cortical cell structure, density and degree of crystalline, of yak hair fiber have been analyzed after the stretching slenderization in this paper. It was found that the cortical cell has been elongated and became thinner, which average length-diameter ratio could be raised from 18 to about 40. By means of ultrasonic separation technology, the effect of stretching on packing action of fiber cortical cells has been investigated. It was proved that the stretching slenderization would improve the structure of yak hair cortex, and cortical cells were packed tighter along the fiber. The density and degree of crystalline also increased as raise of stretching rate. At the same time, the results form tensile test indicated that the fiber physical property would be improved through stretching treatment.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 1231-1234
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.1231
• Online since: February 2012
• Authors: Jian Liu, Yi Weng
• Keywords: Cortex Cell, Degree of Crystalline, SEM, Stretching Slenderization, Ultrasonic Separation, Yak Hair Fiber

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