Document Type : Research Paper


1 Department of Mechanical Engineering, Faculty of Engineering, Federal University Wukari, Taraba State, Nigeria.

2 Department of Production Engineering, Faculty of Engineering, University of Benin, Nigeria.


In composite production, hydrophilic nature of plant fibres results in poor interfacial adhesion between polar-hydrophilic fibre and non-polar-hydrophobic matrix and dimensional instability of the resulting product. Therefore, there is need to reduce the percentage of water absorption of natural fibres before incorporating them in composite. Bamboo fibre polyester composites were subjected to three modification treatments which are mercerization, acetylation and mercerized-acetylation at fibre content levels of 10, 20 30, 40 and 50 wt % in order to reduce the moisture absorption of the composites. Taguchi method was used to optimize the parameter settings for reduced moisture absorption. The diffusion coefficient, absorption coefficient and permeability coefficient of the composites for each fibre treatment was used to study the absorption kinetics. Mercerized-acetylated fibre composites show the best moisture absorption performance among all the considered treatments. The application of optimization techniques and statistical analysis was used to improve the processes of bamboo fibre polyester composite production in order to achieve improved moisture degradation behavior of the composite and promote the expansion of natural fibres application in engineering.


Main Subjects

Das, P. P., & Chaudhary, V. (2021). Moving towards the era of bio fibre based polymer composites. Cleaner engineering and technology, 11,
Paturel, A., & Dhakal, H. N. (2020). Influence of water absorption on the low velocity falling weight impact damage behaviour of flax/glass reinforced vinyl ester hybrid composites. Molecules25(2), 278.
Yang, H. S., Kim, H. J., Son, J., Park, H. J., Lee, B. J., & Hwang, T. S. (2004). Rice-husk flour filled polypropylene composites; mechanical and morphological study. Composite structures63(3-4), 305-312.
Baltazar-Y-Jimenez, A., & Sain, M. (2012). Natural fibres for automotive applications. In Handbook of Natural Fibres(pp. 219-253). Woodhead Publishing.    
Stewart, R. (2010). Reinforced plastics. Retrieved March 10, 2016 from
Akova, E. (2013). Development of natural fiber reinforced polymer composites. Transfer inovácií25, 201.
Grand View Research (2016). Natural fibre composite market analysis. Retrieved July 28, 2016 from grandviewresearch/industry-analysis/natural-fibre-composites
Wang, Z., & Guo, W. (2007). Current status and prospects of new architectural materials from bamboo. Retrieved from
Adedipe, O., Abdullahi, A. A., Ogunwole, O. A., & Ogu, S. I. (2013). Investigation of some mechanical properties of ‘Agaraba’-a native Nigerian bamboo. AU J Technol16(3), 181-186.
Ogunwusi, A. A., & Onwualu, A. P. (2011). Indicative inventory of bamboo availability and utilization in Nigeria. Journal of research in industrial development9(2), 1-9. 
Sharma, P., Dhanwantri, K., & Mehta, S. D. K. M. (2014). Bamboo as a building material. International journal of civil engineering research5(3), 250-254.
John, M. J., & Anandjiwala, R. D. (2008). Recent developments in chemical modification and characterization of natural fiber‐reinforced composites. Polymer composites29(2), 187-207.
Mohanty, S., Nayak, S. K., Verma, S. K., & Tripathy, S. S. (2004). Effect of MAPP as coupling agent on the performance of sisal–PP composites. Journal of reinforced plastics and composites23(18), 2047-2063.
Herrera-Franco, P., & Valadez-Gonzalez, A. (2005). A study of the mechanical properties of short natural-fiber reinforced composites. Composites part B: Engineering36(8), 597-608.
Maya, J., Rajesh, J., Anandjiwala, D. and Sabu T. (2007). Hybrid composites. Journal of bioenergy, I, 317-329.
Bakar, A. A., Hassan, A., & Yusof, A. M. (2005). Effect of oil palm empty fruit bunch and acrylic impact modifier on mechanical properties and processability of unplasticized poly (vinyl chloride) composites. Polymer-plastic technology and engineering44(6), 1125-1137.
Nevell, T. P. and Zeronian, S. H. (1985).Wood Fibres. New York: New York WileyPress.
Huang, K., Zhang, M., Zhang, G. U. A. N. G. Z. H. I., Jiang, X., & Huang, D. (2014). Acetylation modification of rice straw fiber and its thermal properties. Cellulose chemistry and technology48(3-4), 199-207.
Sjöström, E. (1981). Wood Chemistry—Fundamentals and Applications Academic. London: Press Inc. Ltd.   
Jayabal, S., Sathiyamurthy, S., Loganathan, K. T., & Kalyanasundaram, S. (2012). Effect of soaking time and concentration of NaOH solution on mechanical properties of coir–polyester composites. Bulletin of materials science35(4), 567-574.
Shehu, U., Isa, M. T., Aderemi, B. O., & Bello, T. K. (2017). Effects of NaOH modification on the mechanical properties of Baobab POD fiber reinforced LDPE composites. Nigerian journal of technology36(1), 87-95. DOI:4314/njt.v36i1.12
Wong, K. J., Yousif, B. F., & Low, K. O. (2010). The effects of alkali treatment on the interfacial adhesion of bamboo fibres. Proceedings of the institution of mechanical engineers, part L: Journal of materials: design and applications224(3), 139-148.
Prasad, S. V., Pavithran, C., & Rohatgi, P. K. (1983). Alkali treatment of coir fibres for coir-polyester composites. Journal of materials science18(5), 1443-1454.
Somashekar, S. and Shanthakumar, G. C. (2014). Effect of alkali treatment on mechanical properties of sisal -reinforced epoxy polymer matrix composite. International journal of mechanical engineering and robotic research, 3 (4), 441 - 450.
Kusmono, I., Hestiawan, H., & Jamasri, F. (2020). The water absorption, mechanical and thermal properties of chemically treated woven fan palm reinforced polyester composites. Journal of Materials Research and Technology9(3), 4410-4420.
Olorunnisola, A. O., & Agrawal, S. P. (2013). Effects of sodium hydroxide concentration and fibre content on cement-bonded composites from eucalyptus veneer waste. Pro ligno9(4), 504-509.
Kushwaha, P. K., & Kumar, R. (2012). Influence of pre-impregnation treatment on bamboo reinforced epoxy/UPE resin composites. Open journal of composite materials2(4), 139-141. DOI:4236/ojcm.2012.24017 
Onyekwere, O. S., & Igboanugo, A. C. (2019). Optimal parameter setting for mercerization of bamboo fibres. Journal of science and technology research1(1), 12-22.
Onyekwere, O. S., Igboanugo, A. C., & Adeleke, T. B. (2019). Optimisation of acetylation parameters for reduced moisture absorption of bamboo fibre using Taguchi experimental design and genetic algorithm optimisation tools. Nigerian journal of technology38(1), 104-111. DOI:4314/njt.v38i1.14
Phadke, M. (1989). Quality engineering using robust design. Englewood Cliffs: Prentice Hall.
Wysk, R. A., Niebel, B. W., Cohen, P. H., & Simpson, T. W. (2000). Manufacturing processes: integrated product and process design. McGraw, New York.
Khoei, A. R., Masters, I., & Gethin, D. T. (2002). Design optimisation of aluminium recycling processes using Taguchi technique. Journal of materials processing technology127(1), 96-106.
Hassan, M. A., Onyekwere, O. S., Yami, A., & Raji, A. (2014). Effects of chemical modification on physical and mechanical properties of rice husk—stripped oil palm fruit bunch fiber polypropylene hybrid composite. IOSR journal of mechanical and civil engineering (IOSRJMCE)11(4), 1-5.
Onyekwere, O. S., Oladeinde, M. H., & Uyanga, K. A. (2020). Optimization of parameter settings to achieve improved tensile and impact strength of bamboo fibre composites. Journal of applied research on industrial engineering7(4), 344-364. DOI: 22105/JARIE.2020.257974.1207
Chung, T. J., Park, J. W., Lee, H. J., Kwon, H. J., Kim, H. J., Lee, Y. K., & Tai Yin Tze, W. (2018). The improvement of mechanical properties, thermal stability, and water absorption resistance of an eco-friendly PLA/kenaf biocomposite using acetylation. Applied sciences8(3), 376.
Daramola, O. O., Akinwekomi, A. D., Adediran, A. A., Akindote-White, O., & Sadiku, E. R. (2019). Mechanical performance and water uptake behaviour of treated bamboo fibre-reinforced high-density polyethylene composites. Heliyon5(7), e02028.
Carter, H. G., & Kibler, K. G. (1978). Langmuir-type model for anomalous moisture diffusion in composite resins. Journal of composite materials12(2), 118-131.