The Influence of Hot Water Washing Cycles on Tensile Properties of Curauá Fiber


The Influence of Hot Water Washing Cycles on Tensile Properties of Curauá Fiber

B. Zukowski, F. de Andrade Silva, R.D.T. Filho

Abstract. The work in hand presents the preliminary results of an experimental campaign on the influence of hot water treatment on the tensile strength of high performance natural curauá fibers and its dimensional changes. In this work we have studied the monotonic tensile behavior of natural and treated curauá fibers. Tensile tests were performed on a microforce testing system using four different gage lengths: 10, 20, 30 and 40mm. The cross-sectional area of the fiber was measured using scanning electron microscope (SEM) micrographs and image analysis. The measured Young’s modulus was corrected for the machine compliance. Weibull statistics were used to quantify the degree of variability in fiber strength at the different gage lengths. Furthermore, the time length of the used hot water treatment was investigated. The fibers were divided into three groups: reference, 9 hours and 18 hours of treatment in hot water (80° C) with water being changed every 3 hours. This process was applied to remove the wax, impurities and plant residues from the surface of the fibers. The used treatment increased the tensile strength of the fibers and, after 18 hours, caused a notable cross-sectional area reduction.

Curauá Fiber, Mechanical Properties, Fiber Treatment, SEM

Published online , 10 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: B. Zukowski, F. de Andrade Silva, R.D.T. Filho, ‘The Influence of Hot Water Washing Cycles on Tensile Properties of Curauá Fiber’, Materials Research Proceedings, Vol. 7, pp 373-382, 2018


The article was published as article 35 of the book Non-Conventional Materials and Technologies

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