Effect of Fiber Treatment on the Fiber Strength of Kenaf Bast Fiber as Reinforcing Material in Polymer Composite

Abstract:

The use of natural fibers at high percentages of loading in thermoplastic composites for the production of sustainable and green materials in consumer goods, furniture, automotive industry and construction industry is emerging. Several studies have been conducted by many researchers to improve the mechanical properties of the fibers and the fiber-matrix interface for better bonding and load transfer especially when high fiber loading is used. The natural fiber hydrophilic properties make the poor interface and poor resistance to moisture absorption when used to reinforce hydrophobic matrices. Therefore, this study investigates the effects of different surface treatment namely magnesium chloride (MgCl₂) and sodium hydroxide (NaOH) on the properties of kenaf fiber for different molarities. Morphology using scanning electron microscopy (SEM) and fourier transform infrared (FTIR) spectroscopy and tensile properties of kenaf fibers after different surface treatment are evaluated. Results showed that the treatment on kenaf fibers has removed the hydroxyl group in cellulose and increase the surface roughness which resulted in the improvement of the tensile properties of kenaf fibers as compared to untreated kenaf fibers.

• Periodical: Advanced Materials Research (Volume 795)
• Pages: 360-366
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.795.360
• Online since: September 2013
• Authors: Nurul Faiizin Abdul Aziz, Ibrahim Azmi, Zakiah Ahmad, Rozana Mohd Dahan
• Keywords: Fourier Transform Infrared (FTIR), Kenaf Bast Fiber, Magnesium Chloride (MgCl₂), Scanning Electron Microscope (SEM), Sodium Hydroxide (NaOH)

References

[1] M. M. Kabir, H. Wang, K. T. Lau, and F. Cardona, "Chemical treatments on plant-based natural fibre reinforced polymer composites: An overview," Composites Part B: Engineering, vol. 43, pp.2883-2892, 2012.

DOI: 10.1016/j.compositesb.2012.04.053

[2] H. Ku, H. Wang, N. Pattarachaiyakoop, and M. Trada, "A review on the tensile properties of natural fiber reinforced polymer composites," Composites Part B: Engineering, vol. 42, pp.856-873, 2011.

DOI: 10.1016/j.compositesb.2011.01.010

[3] H. Ismail, A. Hamid Abdullah, and A. Abu Bakar, "Kenaf Core Reinforced High-density Polyethylene/Soya Powder Composites: The Effects of Filler Loading and Compatibilizer " Journal of Reinforced Plastics and Composites, vol. 29, pp.2489-2497, 2010.

DOI: 10.1177/0731684409354392

[4] S. Kalia, B. S. Kaith, and I. Kaur, "Pretreatments of natural fibers and their application as reinforcing material in polymer composites—A review," Polymer Engineering & Science, vol. 49, pp.1253-1272, 2009.

DOI: 10.1002/pen.21328

[5] N. Sgriccia, M. C. Hawley, and M. Misra, "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

[6] L. Y. Mwaikambo and M. P. Ansell, "Chemical modification of hemp, sisal,jute and kapok fibres by alkalisation," Journal of Applied Polymer Science, vol. 84, pp.2222-2234, 2002.

DOI: 10.1002/app.10460

[7] K. Joseph, S. Thomas, and C. Pavithran, "Effect of chemical treatment on the tensile properties of short sisal fibre-reinforced polyethylene composites," Polymer, vol. 37, pp.5139-5149, 1996.

DOI: 10.1016/0032-3861(96)00144-9

[8] L. Y. Mwaikambo and M. P. Ansell, "The effect of chemical treatment on the properties of hemp, sisal, jute and kapok for composite reinforcement," Die Angewandte Makromolekulare Chemie, vol. 272, pp.108-116, 1999.

DOI: 10.1002/(sici)1522-9505(19991201)272:1<108::aid-apmc108>3.0.co;2-9

[9] M. A. Sawpan, K. L. Pickering, and A. Fernyhough, "Effect of various chemical treatments on the fibre structure and tensile properties of industrial hemp fibres," Composites Part A: Applied Science and Manufacturing, vol. 42, pp.888-895, 2011.

DOI: 10.1016/j.compositesa.2011.03.008

[10] F. Febrianto, D. Setyawati, M. Karina, E. S. Bakar and Y. S. Hadi,. "Influence of Wood Flour and Modifier Contents on the Physical and Mechanical Properties of Wood Flour-Recycle Polypropylene Composites," Journal of Biological Sciences, vol. 6, pp.337-343, 2006. .

DOI: 10.3923/jbs.2006.337.343

[11] H. P. San, L. A. Nee, and H. C. Meng, "Physical and Bending Properties of Injection Moulded Wood Plastic Composites Boards," Journal of Engineering and Applied Sciences, vol. 3, 2008.

[12] S. H. Aziz and M. P. Ansell, "The effect of alkalization and fibre alignment on the mechanical and thermal properties of kenaf and hemp bast fibre composites: Part 1 – polyester resin matrix," Composites Science and Technology, vol. 64, pp.1219-1230, 2004.

DOI: 10.1016/j.compscitech.2003.10.001

[13] A. M. M. Edeerozey, H. M. Akil, A. B. Azhar, and M. I. Z. Ariffin, "Chemical modification of kenaf fibers," Materials Letters, vol. 61, pp.2023-2025, 2007.

DOI: 10.1016/j.matlet.2006.08.006

[14] H. M. Akil, M. F. Omar, A. A. M. Mazuki, S. Safiee, Z. A. M. Ishak, and A. Abu Bakar, "Kenaf fiber reinforced composites: A review," Materials &amp; Design, vol. 32, pp.4107-4121, 2011.

DOI: 10.1016/j.matdes.2011.04.008

[15] L. Y. Mwaikambo and M. P. Ansell, "Hemp fibre reinforced cashew nut shell liquid composites," Composites Science and Technology, vol. 63, pp.1297-1305, 2003.

DOI: 10.1016/s0266-3538(03)00101-5

[16] P. Saha, Manna, S., Chowdhury, S.R,. Sen, R, Roy, D., and Adhikari,, B.,, "Enhancement of Tensile Strength of Lignocellulosic Jute Fibers By Alkali-Steam Treatment,," Bioresource Technology vol. 101, pp.3182-3187, 2010.

DOI: 10.1016/j.biortech.2009.12.010

[17] E. Sinha and S. K. Rout, "Influence of fibre-surface treatment on structural, thermal and mechanical properties of jute," Journal of Materials Science vol. 43, pp.2590-2601, 2009.

DOI: 10.1007/s10853-008-2478-4

[18] J. M. Fang, R. C. Sun, and J. Tomkinson, "Isolation and characterization of hemicelluloses and cellulose from rye straw by alkaline peroxide extraction," Cellulose, vol. 7, pp.87-107, 2000.