Mercerization Treatment Conditions Effects on Kenaf Fiber Bundles Mean Diameter Variability

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The interest in utilizing natural fiber as reinforce in polymer composites has increased in recent years due to their advantages like availability, cheap, renewable, lightweight, and biodegradable. However, the main challenge of natural fiber to be used as reinforcement in polymer is their hydrophobic nature. One of the solutions is via chemical modification like mercerization treatment. In this study, the effect of alkali concentrations at 2 and 10 w/v %; and soaking temperature at 30°C and 80°C on a kenaf fiber bundles mean diameter was investigated. Untreated kenaf fiber was used as a control unit. Kenaf fiber diameter was measured using a Leica video analyzer. Microstructure change of kenaf fiber before and after mercerization treatment conditions was identified using JOEL scanning electron microscopy (SEM). Finally, an interaction of alkali treatment conditions on kenaf fiber bundles mean diameter value was statistically analyzed using a commercially available statistical software package. The results showed that kenaf fiber bundle mean diameter was reduced by 30.12% to 42.92% after mercerization treatment. From analysis of variance, the main effect of alkali concentration value was 6.075 and the temperature value was 1.135. The main effect plots reveal that alkali concentration had a higher impact on mean diameter changes compared to soaking temperature factor.

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670-674

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April 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] A. K. Bledzki and J. Gassan, Composites reinforced with cellulose based fibres, Progress in Polymer Science, vol. 24, pp.221-274, (1999).

DOI: 10.1016/s0079-6700(98)00018-5

Google Scholar

[2] F. P. La Mantia and M. Morreale, Green composites: A brief review, Composites Part A: Applied Science and Manufacturing, vol. 42, pp.579-588, (2011).

DOI: 10.1016/j.compositesa.2011.01.017

Google Scholar

[3] K. G. Satyanarayana, et al., Biodegradable composites based on lignocellulosic fibers-An overview, Progress in Polymer Science, vol. 34, pp.982-1021, (2009).

DOI: 10.1016/j.progpolymsci.2008.12.002

Google Scholar

[4] N. Sgriccia, et al., Characterization of natural fiber surfaces and natural fiber composites, Composites Part A: Applied Science and Manufacturing, vol. 39, pp.1632-1637, (2008).

DOI: 10.1016/j.compositesa.2008.07.007

Google Scholar

[5] P. A. Sreekumar, et al., Effect of fiber surface modification on the mechanical and water absorption characteristics of sisal/polyester composites fabricated by resin transfer molding, Composites Part A: Applied Science and Manufacturing, vol. 40, pp.1777-1784, (2009).

DOI: 10.1016/j.compositesa.2009.08.013

Google Scholar

[6] D. Bachtiar, et al., The effect of alkaline treatment on tensile properties of sugar palm fibre reinforced epoxy composites, Materials & Design, vol. 29, pp.1285-1290, (2008).

DOI: 10.1016/j.matdes.2007.09.006

Google Scholar

[7] A. M. M. Edeerozey, et al., Chemical modification of kenaf fibers, Materials Letters, vol. 61, pp.2023-2025, (2007).

DOI: 10.1016/j.matlet.2006.08.006

Google Scholar

[8] A. Gomes, et al., Effects of alkali treatment to reinforcement on tensile properties of curaua fiber green composites, JSME International Journal Series A, vol. 47, pp.541-546, (2004).

DOI: 10.1299/jsmea.47.541

Google Scholar

[9] J. L. Thomason, et al., Fibre cross-section determination and variability in sisal and flax and its effects on fibre performance characterisation, Composites Science and Technology, vol. 71, pp.1008-1015, (2011).

DOI: 10.1016/j.compscitech.2011.03.007

Google Scholar

[10] O. I. Chiparus and Y. Chen, An image method to evaluate bagasse fiber dimensions, Bioresource Technology, vol. 90, pp.305-309, (2003).

DOI: 10.1016/s0960-8524(03)00128-7

Google Scholar

[11] N. Defoirdt, et al., Assessment of the tensile properties of coir, bamboo and jute fibre, Composites Part A: Applied Science and Manufacturing, vol. 41, pp.588-595, (2010).

DOI: 10.1016/j.compositesa.2010.01.005

Google Scholar

[12] F. d. A. Silva, et al., Tensile behavior of high performance natural (sisal) fibers, Composites Science and Technology, vol. 68, pp.3438-3443, (2008).

DOI: 10.1016/j.compscitech.2008.10.001

Google Scholar

[13] A. S. Virk, et al., Failure strain as the key design criterion for fracture of natural fibre composites, Composites Science and Technology, vol. 70, pp.995-999, (2010).

DOI: 10.1016/j.compscitech.2010.02.018

Google Scholar

[14] M. Aslan, et al., Strength variability of single flax fibres, Journal of Materials Science, vol. 46, pp.6344-6354, (2011).

DOI: 10.1007/s10853-011-5581-x

Google Scholar

[15] Nor Azowa Ibrahim, et al., Effect of Fiber Treatment on Mechanical Properties of Kenaf Fiber-Ecoflex Composites, Journal of Reinforced Plastics and Composites, vol. 29, pp.2192-2198, July 1, 2010 (2010).

DOI: 10.1177/0731684409347592

Google Scholar

[16] S. Shibata, et al., Flexural modulus of the unidirectional and random composites made from biodegradable resin and bamboo and kenaf fibres, Composites Part A: Applied Science and Manufacturing, vol. 39, pp.640-646, (2008).

DOI: 10.1016/j.compositesa.2007.10.021

Google Scholar

[17] B. F. Yousif, et al., Flexural properties of treated and untreated kenaf/epoxy composites, Materials & Design, vol. 40, pp.378-385, (2012).

DOI: 10.1016/j.matdes.2012.04.017

Google Scholar

[18] L. Y. Mwaikambo and M. P. Ansell, Chemical modification of hemp, sisal, jute, and kapok fibers by alkalization, Journal of Applied Polymer Science, vol. 84, pp.2222-2234, (2002).

DOI: 10.1002/app.10460

Google Scholar

[19] L. Y. Mwaikambo, Tensile properties of alkalised jute fibres, Bioresources, vol. 4, pp.566-588, (2009).

Google Scholar