Effects of Alkaline Treatments on the Tensile Strength of Napier Grass Fibres

Abstract:

This paper presents the experiment test of the Napier grass fibres to determine the tensile strength of the Napier grass fibre. . Napier grass fibre is a natural source of fibre which is extracted from the internodes of Napier grass stems. Napier grass fibres were extracted trough conventional water retting process. However, the main disadvantages of natural fibres in composites are the poor compatibility between fibre and matrix and the relative high moisture absorption. These Napier grass fibre then undergoes alkaline chemical treatment using sodium hydroxide (NaOH) to improve the surface roughness and to minimize the water absorption into the cellulose. The treatment is conducted with different concentration of NaOH at 5%, 10%, 15% and 20% respectively. The single fibre tensile test was conducted using Instron micro tester. Based on the tests conducted, the results show that the fibre treated 10% concentrations yield the strongest tensile test compared to untreated Napier grass fibre.

• Periodical: Applied Mechanics and Materials (Volume 695)
• Pages: 340-343
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.695.340
• Online since: November 2014
• Authors: J.A. M. Haameem, M.S. Abdul Majid, M. Haslan, Mohd Afendi, E.A. Helmi, Fahmi Idris
• Keywords: Napier Grass Fibre, Natural Fibre, Single Fibre Tensile Test, Sodium Hydroxide

References

[1] Joshi SV, Drzal LT, Mohanty AK, Arora S. Are natural fiber composite environmentally superior to glass fiber reinforced composites. Composites: Part A 2004; 35: 371–6.

DOI: 10.1016/j.compositesa.2003.09.016

[2] Bledzki AK, Gassan J. Composites reinforced with cellulose based fibres. Progr Polym Sci 1999; 24: 221–74.

[3] Zafeiropoulos NE, Williams DR, Baillie CA, Matthews FL. Engineering and characterisation of the interface in flax fibre/polypropylene composite materials. Part I. Development and investigation of surface treatments. Composite: Part A 2002; 33: 1083–93.

DOI: 10.1016/s1359-835x(02)00082-9

[4] Bos HL, Molenveld K, Teunissen W. Compressive behaviour of unidirectional flax fibre reinforced composites. J Mater Sci 2004; 39: 2159–68.

DOI: 10.1023/b:jmsc.0000017779.08041.49

[5] Geethamma VG, Thomas Mathew K, Lakshminarayanan R, Sabu Thomass. Composite of short coir fibres and natural rubber: effect of chemical modification, loading and orientation of fibre. Polymer 1998; 39(6–7): 1483–91.

DOI: 10.1016/s0032-3861(97)00422-9

[6] Herrera-Franco P J, Valadez-Gonzalez A. A study of the mechanical properties of short natural fibre reinforced composites. Composite: Part B 2005; 36: 597–608.

DOI: 10.1016/j.compositesb.2005.04.001

[7] Sreekala MS, Kumaran MG, Seena Joseph, Maya Jacop, Sabu Thomas. Oil palm fibre reinforced phenol formaldehyde composites: influence of fibre surface modifications on the mechanical performance. Appl Compos Mater 2000; 7: 295–329.

[8] Valadez-Gonzalez A, Cervantes-Uc JM, Olayo R., 1999. Compos B: Eng 30: 321.

[9] M.J.A. Haameem, M.S. Abdul Majid , E.A.H. Engku Ubaidillah, Mohd Afendi, R. Daud, N.A.M. Amin et al., Tensile Strength of Untreated Napier Grass Fibre Reinforced Unsaturated Polyester Composites 2014, Applied Mechanics and Materials, 554, 189.

DOI: 10.4028/www.scientific.net/amm.554.189

[10] Goud, G., & Rao, R. (2011). Effect of fibre content and alkali treatment on mechanical properties of Roystonea regia-reinforced epoxy partially biodegradable composites. Bulletin of Materials Science, 34(7), 1575-1581.

DOI: 10.1007/s12034-011-0361-4