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Frictional properties of natural and chemically-treated flax fibers

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2007 ASAE Annual Meeting  076188.(doi:10.13031/2013.23461)
Authors:   Anthony Opoku, Satya Panigrahi, Lope G Tabil
Keywords:   Flax fiber, friction, frictional properties, static, dynamic, internal, shear box, chemical treatment, silane, alkaline

Frictional properties of the natural and treated flax fiber may be required in the design of storage structures, processing, and handling equipment for the fibers used in biocomposites and other applications. The frictional properties (internal friction, static friction, and dynamic friction coefficients) of chemically-treated and natural flax fibers were determined using Wykeham Farrance shear box apparatus. From statistical analysis, the applied normal pressure did not appear to influence the frictional properties of the flax fiber samples. Chemical treatment significantly increased the frictional properties of the flax. The frictional properties were affected significantly by the alkaline treatment compared to other samples. The effective internal friction coefficient values of the whole flax samples ranged from 0.365 to 0.745 and values for the ground samples varied from 0.424 to 0.819. For the whole fiber samples the effective static friction values ranged from 0.155 to 0.244, and the values for the ground fiber samples varied from 0.132 to 0.244. For the whole fiber samples, the dynamic friction coefficient values ranged from 0.131 to 0.179, and the values for the ground fiber samples varied from 0.123 to 0.197.

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