Flexural Strength of Kenaf Fibers/Epoxy Bio-Composites: Content of Kenaf Fiber, Curing Times and Curing Temperatures

Abstract:

Kenaf fiber possesses the capability for application in bio-composite materials, owing to its appealing mechanical and physical properties. This research aimed to achieve the optimum flexural strength of kenaf fiber/epoxy bio-composites materials with variations in kenaf fiber content, curing time, and curing temperature using a casting process. This study found that kenaf fiber addition increased the flexural strength of kenaf fiber/epoxy bio-composite, by varying curing time (30, 45, and 60 minutes) and curing temperature (60, 90, and 150 °C). The results showed that the highest flexural strength was obtained at 90°C (72.5 MPa) at 20/80 kenaf fiber content, at various curing temperatures. Meanwhile, the same highest flexural strength value (72.5 MPa) was also obtained for 20/80 kenaf fiber content, 45 minutes at various curing times. SEM image shows that 20 Wt.% kenaf fiber content has a better dispersion compared with 10 Wt.% so that affects the flexural strength value.

• Periodical: Materials Science Forum (Volume 1115)
• Pages: 49-54
• DOI: https://doi.org/10.4028/p-j6xjcE
• Online since: February 2024
• Authors: Hendra Suherman*, Idial Vatra, Talitha Amalia Suherman, Irmayani Irmayani
• Keywords: Bio-Composite, Casting Process, Flexural Strength, Kenaf Fiber

References

[1] S. O. Prakash, P. Sahu, M. Madhan, and A. Johnson Santhosh, "A Review on Natural Fibre-Reinforced Biopolymer Composites: Properties and Applications," Int. J. Polym. Sci., vol. 2022, 2022.

DOI: 10.1155/2022/7820731

[2] P. Anand, D. Rajesh, M. Senthil Kumar, and I. Saran Raj, "Investigations on the performances of treated jute/Kenaf hybrid natural fiber reinforced epoxy composite," J. Polym. Res., vol. 25, no. 4, 2018.

DOI: 10.1007/s10965-018-1494-6

[3] M. Jawaid and H. P. S. Abdul Khalil, "Cellulosic/synthetic fibre reinforced polymer hybrid composites: A review," Carbohydr. Polym., vol. 86, no. 1, p.1–18, 2011.

DOI: 10.1016/j.carbpol.2011.04.043

[4] S. W. Ghori and G. S. Rao, "Fiber loading of date palm and kenaf reinforced epoxy composites: tensile, impact and morphological properties," J. Renew. Mater., vol. 9, no. 7, p.1283–1292, 2021.

DOI: 10.32604/jrm.2021.014987

[5] T. Khan, M. T. H. Sultan, A. U. M. Shah, A. H. Ariffin, and M. Jawaid, "The Effects of Stacking Sequence on the Tensile and Flexural Properties of Kenaf/Jute Fibre Hybrid Composites," J. Nat. Fibers, vol. 18, no. 3, p.452–463, 2021.

DOI: 10.1080/15440478.2019.1629148

[6] N. Saba, M. T. Paridah, and M. Jawaid, "Mechanical properties of kenaf fibre reinforced polymer composite: A review," Constr. Build. Mater., vol. 76, p.87–96, 2015.

DOI: 10.1016/j.conbuildmat.2014.11.043

[7] M. Jawaid, S. Awad, H. Fouad, M. Asim, N. Saba, and H. N. Dhakal, "Improvements in the thermal behaviour of date palm/bamboo fibres reinforced epoxy hybrid composites," Compos. Struct., vol. 277, no. June, p.114644, 2021.

DOI: 10.1016/j.compstruct.2021.114644

[8] D. Ray, M. Das, and D. Mitra, "Influence of alkali treatment on creep properties and crystallinity of jute fibres," BioResources, vol. 4, no. 2, p.730–739, 2009.

DOI: 10.15376/biores.4.2.730-739

[9] R. A. Braga and P. A. A. Magalhaes, "Analysis of the mechanical and thermal properties of jute and glass fiber as reinforcement epoxy hybrid composites," Mater. Sci. Eng. C, vol. 56, p.269–273, 2015.

DOI: 10.1016/j.msec.2015.06.031

[10] N. A. Ibrahim, K. A. Hadithon, and K. Abdan, "Effect of fiber treatment on mechanical properties of kenaf fiber-ecoflex composites," J. Reinf. Plast. Compos., vol. 29, no. 14, p.2192–2198, 2010.

DOI: 10.1177/0731684409347592

[11] I. D. Suherman, Hendra;Aksa, kamdini; Irmayani, "Mechanical Properties of Kenaf Fiber / Epoxy Bio-," vol. 040007, no. June, 2023.

DOI: 10.1063/5.0115313

[12] H. Suherman, E. Azwar, Duskiardi, Yovial, and E. Septe, "Properties of Kenaf Fibers/Epoxy Biocomposites: Flexural Strength and Impact Strength," in IOP Conference Series: Materials Science and Engineering, 2019, vol. 652, no. 1.

DOI: 10.1088/1757-899X/652/1/012036

[13] M. K. Gupta, "Thermal and dynamic mechanical analysis of hybrid jute/sisal fibre reinforced epoxy composite," Proc. Inst. Mech. Eng. Part L J. Mater. Des. Appl., vol. 232, no. 9, p.743–748, 2018.

DOI: 10.1177/1464420716646398

[14] A. S. Ismail, M. Jawaid, and J. Naveen, "Void content, tensile, vibration and acoustic properties of kenaf/bamboo fiber reinforced epoxy hybrid composites," Materials (Basel)., vol. 12, no. 13, 2019.

DOI: 10.3390/ma12132094