Mechanical and Functional Performance of PET–Kenaf Fiber Hybrid Composites for Domestic Household Applications

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Year : 2026 | Volume : 14 | 02 | Page :
    By

    Prashant Vijay Thokal,

  • Pravin B. Khatkale,

  • Raje Gowda,

  • Deepak G.B,

  • Sachin W. Manjarawal,

  • Prashant Sunagar,

  • Yogesh Agrawal,

  • Nandkishor Sawai,

  • Anil Singh Yadav,

  1. Assistant Professor, Department of civil engineering, Ramaiah Institute of Technology, Bangalore, Karnataka, India
  2. Assistant Professor, Department of civil engineering, Dr. Ambedkar Institute of Technology, Bangalore, Karnataka, India
  3. Assistant Professor, Department of civil engineering, Dr. Ambedkar Institute of Technology, Bangalore, Karnataka, India
  4. Professor, Department of Civil Engineering, Technocrats Institute of Technology, Bhopal, Madhya Pradesh, India
  5. Assistant Professor, Department of Civil Engineering, Technocrats Institute of Technology, Bhopal, Madhya Pradesh, India
  6. Associate Professor, Department of Civil Engineering, Dayananda Sagar Academy of Technology and Management, Bangalore, Karnataka, India
  7. Associate Professor, Department of Civil engineering, Sandip institute of technology and research, Nashik, Maharashtra, India
  8. Associate Professor, Department of Mechanical Engineering, Sandip institute of technology and research, Maharashtra, India
  9. Associate Professor, Department of Mechanical Engineering, Sandip institute of technology and research, Maharashtra, India

Abstract

This research presents a hybrid composite of recycled polyethylene terephthalate (PET) and Kenaf fibers for sustainable household applications. Polyethylene terephthalate from consumer bottles was reinforced with Kenaf fibers at volume fractions of 10–30% and composites were created through compression molding. Mechanical characterization involved tensile, flexural, impact, and hardness testing where appropriate and was standardized according to ASTM standards, while their interfacial interactions were characterized by imaging through SEM. Linear and shear-lag theoretical prediction models were derived and compared to experimental trends. Results determined an optimum fiber content of 20% increases tensile strength 52% and flexural modulus 47% and impact toughness 35% with respect to neat PET at similar dimensions. Composites showed an increase in hardness across the board. An optimum 20% fiber composite was also characterized by SEM imaging due to lower void content and superior interfacial bonding with fiber pull-out determined to be the highest mode of energy absorption. Higher fiber contents (>30%) performed worse in most mechanical properties due to inferior stress transfer efficiency and compaction.

Keywords: PET composites, Kenaf fiber, sustainable materials, household applications, mechanical properties, hybrid polymer composites.

How to cite this article:
Prashant Vijay Thokal, Pravin B. Khatkale, Raje Gowda, Deepak G.B, Sachin W. Manjarawal, Prashant Sunagar, Yogesh Agrawal, Nandkishor Sawai, Anil Singh Yadav. Mechanical and Functional Performance of PET–Kenaf Fiber Hybrid Composites for Domestic Household Applications. Journal of Polymer & Composites. 2026; 14(02):-.
How to cite this URL:
Prashant Vijay Thokal, Pravin B. Khatkale, Raje Gowda, Deepak G.B, Sachin W. Manjarawal, Prashant Sunagar, Yogesh Agrawal, Nandkishor Sawai, Anil Singh Yadav. Mechanical and Functional Performance of PET–Kenaf Fiber Hybrid Composites for Domestic Household Applications. Journal of Polymer & Composites. 2026; 14(02):-. Available from: https://journals.stmjournals.com/jopc/article=2026/view=242552


References

  1. Al-Maadeed, M. A., Kahraman, R., Khanam, P. N., & Hassan, M. K. (2012). Improvement in mechanical properties of recycled PET/kenaf fiber composites. Journal of Applied Polymer Science, 125(2), 1360–1367. https://doi.org/10.1002/app.36319
  2. Auras, R., Lim, L. T., Selke, S. E., & Tsuji, H. (2011). Poly(lactic acid): Synthesis, structures, properties, processing, and applications. John Wiley & Sons.
  3. Aziz, S. H., & Ansell, M. P. (2004). The effect of alkaline treatment on the mechanical and physical properties of Kenaf and hemp bast fibres. Composites Science and Technology, 64(9), 1231–1240. https://doi.org/10.1016/j.compscitech.2003.10.001
  4. Bledzki, A. K., & Gassan, J. (1999). Composites reinforced with cellulose based fibres. Progress in Polymer Science, 24(2), 221–274. https://doi.org/10.1016/S0079-6700(98)00018-5
  5. Bourmaud, A., & Baley, C. (2010). Investigations on the recycling of hemp and sisal fibre reinforced polypropylene composites. Composites Part A: Applied Science and Manufacturing, 41(4), 478–487. https://doi.org/10.1016/j.compositesa.2009.12.004
  6. Dittenber, D. B., & GangaRao, H. V. S. (2012). Critical review of recent publications on use of natural composites in infrastructure. Composites Part A: Applied Science and Manufacturing, 43(8), 1419–1429. https://doi.org/10.1016/j.compositesa.2011.11.019
  7. Faruk, O., Bledzki, A. K., Fink, H. P., & Sain, M. (2012). Biocomposites reinforced with natural fibers: 2000–2010. Progress in Polymer Science, 37(11), 1552–1596. https://doi.org/10.1016/j.progpolymsci.2012.04.003
  8. George, J., Sreekala, M. S., & Thomas, S. (2001). A review on interface modification and characterization of natural fiber reinforced plastic composites. Polymer Engineering & Science, 41(9), 1471–1485. https://doi.org/10.1002/pen.10846
  9. Herrera-Franco, P. J., & Valadez-Gonzalez, A. (2005). Mechanical properties of continuous natural fibre-reinforced polymer composites. Composites Part A: Applied Science and Manufacturing, 36(5), 597–608. https://doi.org/10.1016/j.compositesa.2004.11.004
  10. Holbery, J., & Houston, D. (2006). Natural-fiber-reinforced polymer composites in automotive applications. Journal of the Minerals, Metals & Materials Society, 58(11), 80–86. https://doi.org/10.1007/s11837-006-0234-2
  11. John, M. J., & Thomas, S. (2008). Biofibres and biocomposites. Carbohydrate Polymers, 71(3), 343–364. https://doi.org/10.1016/j.carbpol.2007.05.040
  12. Joshi, S. V., Drzal, L. T., Mohanty, A. K., & Arora, S. (2004). Are natural fiber composites environmentally superior to glass fiber reinforced composites? Composites Part A: Applied Science and Manufacturing, 35(3), 371–376. https://doi.org/10.1016/j.compositesa.2003.09.016
  13. Khan, M. A., & Alam, M. (2012). Influence of fiber treatment on the performance of Kenaf fiber reinforced PET composites. Materials & Design, 41, 414–419. https://doi.org/10.1016/j.matdes.2012.05.041
  14. Mohanty, A. K., Misra, M., & Drzal, L. T. (2001). Surface modifications of natural fibers and performance of the resulting biocomposites: An overview. Composite Interfaces, 8(5), 313–343. https://doi.org/10.1163/156855401753255422
  15. Thakur RK, Singh KK, Mahesh, Rawat P, Sawai N. Experimental analysis on the influence of graphene nanoplatelets in CFRP composite to explore the hole quality during drilling. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 2025 Jul;239(13):4951-67.
  16. Pickering, K. L., Efendy, M. A., & Le, T. M. (2016). A review of recent developments in natural fibre composites and their mechanical performance. Composites Part A: Applied Science and Manufacturing, 83, 98–112. https://doi.org/10.1016/j.compositesa.2015.08.038
  17. Ramesh, M., Palanikumar, K., & Reddy, K. H. (2017). Plant fibre based bio-composites: Sustainable and renewable green materials. Renewable and Sustainable Energy Reviews, 79, 558–584. https://doi.org/10.1016/j.rser.2017.05.094
  18. Sawpan, M. A., Pickering, K. L., & Fernyhough, A. (2011). Improvement of mechanical performance of industrial hemp fibre reinforced polylactide biocomposites. Composites Part A: Applied Science and Manufacturing, 42(3), 310–319. https://doi.org/10.1016/j.compositesa.2010.12.004
  19. Shen, L., Haufe, J., & Patel, M. K. (2009). Product overview and market projection of emerging bio-based plastics. Utrecht University Copernicus Institute Report.
  20. Thakur, V. K., Thakur, M. K., Raghavan, P., & Kessler, M. R. (2014). Progress in green polymer composites from lignocellulosic fibers. Carbohydrate Polymers, 104, 87–93. https://doi.org/10.1016/j.carbpol.2014.01.081
  21. Yang, H. S., Kim, H. J., Park, H. J., Lee, B. J., & Hwang, T. S. (2007). Water absorption behavior and mechanical properties of lignocellulosic filler–polyolefin bio-composites. Composite Structures, 72(4), 429–437. https://doi.org/10.1016/j.compstruct.2005.11.010
Ahead of Print Subscription Original Research
Volume 14
02
Received 29/12/2025
Accepted 13/03/2026
Published 01/05/2026
Publication Time 123 Days
2

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