The Effect of Alkaline Treatment on Tensile Strength and Morphological Properties of Kenaf Fibres for Yarn Production

Authors: A. Khalina, K. Shaharuddin, M. S. Wahab, M. P. Saiman, H. A. Aisyah

Abstract:

This paper investigates the effect of alkali treatment and mechanical properties of kenaf (Hibiscus cannabinus) fibre for the development of yarn. Two different fibre sources are used for the yarn production. Kenaf fibres were treated with sodium hydroxide (NaOH) in the concentration of 3, 6, 9, and 12% prior to fibre opening process and tested for their tensile strength and Young’s modulus. Then, the selected fibres were introduced to fibre opener at three different opening processing parameters; namely, speed of roller feeder, small drum, and big drum. The diameter size, surface morphology, and fibre durability towards machine of the fibres were characterized. The results show that concentrations of NaOH used have greater effects on fibre mechanical properties. From this study, the tensile and modulus properties of the treated fibres for both types have improved significantly as compared to untreated fibres, especially at the optimum level of 6% NaOH. It is also interesting to highlight that 6% NaOH is the optimum concentration for the alkaline treatment. The untreated and treated fibres at 6% NaOH were then introduced to fibre opener, and it was found that the treated fibre produced higher fibre diameter with better surface morphology compared to the untreated fibre. Higher speed parameter during opening was found to produce higher yield of opened-kenaf fibres.

Keywords: Alkaline treatment, Kenaf fibre, Tensile strength, Yarn production.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1131547

References:

[1] A.K. Mohanty, M. Misra, L.T. Drzal, S.E. Selke, B.R.Harte, and G. Hinrichsen, Natural fibres, biopolymers, and biocomposites: an introduction. In Natural fibres, biopolymers, and biocomposites, CRC Press, Boca Raton, 2005. pp. 1-36.
[2] S. Mishra, S.S. Tripathy, M. Misra, A.K. Mohanty, and S.K. Nayak, “Novel eco-friendly biocomposites: biofibre reinforced biodegradable polyester amide composites—fabrication and properties evaluation”, J. Reinf Plast Compos, vol 21, 2002, pp. 55–70.
[3] S.M. Sapuan and M.A. Maleque, “Design and fabrication of natural woven fabric reinforced epoxy composite for household telephone stand”, Materials and Design, vol 26, 2005, pp. 65-71.
[4] H.P.S. Abdul Khalil, A.F. Ireana Yusra, A.H. Bhat and M. Jawaid, “Cell wall ultrastructure, anatomy, lignin distribution, and chemical composition of Malaysian cultivated kenaf fibre”, Industrial Crops and Products. vol 31(1), 2010, pp. 113-121.
[5] J.C. Villar, E. Revilla, N. Gomez, J.M. Carbajo and J.L Simon, “Improving the use of kenaf for kraft pulping by using mixtures of bast and core fibres”, Ind. Crops Prod, vol 2, 2009, pp 301-307.
[6] M.T. Paridah, and A. Khalina, “Effects of Soda Retting on the tensile strength of kenaf (Hibiscus cannabinus l.) bast fibres”, Project Report Kenaf EPU, 2009, pp. 21.
[7] S. Kawai, (2005). “Development of high-performance kenaf bast oriented fibreboard and kenaf core binderless particleboard”, Sustainable Humanospere, vol 1, 2005, pp.12.
[8] T. A. Calamari, W. Tao, and W.R.Goynes, “A preliminary study of kenaf fibre bundles and their composite cells”, Tappi Journal, vol 80(8), 1997, pp. 149-154.
[9] Y. Kawahara, K. Tadokoro, R. Endo, M. Shioya, Y. Sugimura, and T. Furusawa, “Chemically retted kenaf fibres” SEN’I GAKKAISHI, vol 61, 2005, pp.115-117.
[10] Y. Nitta, J. Noda, K. Goda, and W.I. Lee, “Effect of alkali-treatment on tensile properties of kenaf long fibres” In: 18th International Conference on Composite Materials, 2012.
[11] S.M. Ishitiaque,S. Chaudhuri, and A. Das, “Influence of fibre opeeness on processibility of cotton and yarn quality : Part II – Effect of carding parameters,” Indian Journal of Fibre & Textile Research, vol. 28, 2003, pp. 405-410.
[12] S.M. Ishitiaque, and P. Kumar, “Impact of rotor and opening roller speeds on configuration of fibres in yarn,” Indian Journal of Fibre & Textile Research, vol. 19, 1994, pp. 71-75.
[13] D. Roy, M. Semsarilar, J.T. Guthrie, and S. Perrier, “Cellulose modification by polymer grafting: A review,” Chemical Society Reviews, vol 38(7), 2009, pp.2046-2064.
[14] M.S. Sreekala, and S.Thomas, S. “Effect of fibre surface modification on water- sorption characteristics of oil palm fibres,” Composite Science Technology, vol 63, 2003, pp. 861-869.
[15] M. Saiful Islam, S.Hamdan, I. Jusoh, M.R. Rahman, and A.S. Ahmed, “The effect of alkali pretreatment on mechanical and morphological properties of tropical wood polymer composites.” Journal Materials and Design, vol 33, 2012, pp. 419-424.
[16] L. Mwaikambo, and M.P. Ansell, “Chemical modification of hemp, sisal, jute and kapok fibres by alkalization,” Journal of Applied Polymer Science, vol 84(12), 2002, pp. 2222-2234.
[17] S. Kalpakjian, and S.R. Schmid, “Manufacturing, Engineering & Technology,” Fifth Edition, Engineering Design Communication, Prentice Hall, 2000.
[18] I. Taha, L. Steuernage, & G. Ziegmann, “Optimization of the alkali treatment process of date palm fibres for polymeric composites,” Compos Interfaces, vol 14, 2007, pp. 669-684.
[19] K. Charlet, C. Baley, C. Morvan, J.P Jernot, M. Gomina, and J.Breard, “Characteristics of Hermes flax fibres as a function of their location in the stem and properties of the derived unidirectional composites,” Composites Part A, vol 38 (8), 2007, pp. 1912–1921.
[20] J. Gassan, and A.K. Bledzki, “Possibilities for improving mechanical properties of jute/epoxy composites by alkali treatment of fibres,” Composites Science and Technology, vol 59, 1999, pp.1303