Seawater immersion effects on the tensile, flexural, and low-energy impact properties of a basalt/flax hybrid reinforced bio-epoxy
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Abstract
Abstract This study presents a novel hybrid eco-composite comprising a single ply of basalt fibre on the outer layers of a flax-woven fabric-reinforced bio-epoxy laminate. Mechanical performance was assessed via tensile, flexural, and low-energy impact tests, while long-term real seawater immersion experiments evaluated degradation in marine environments. The role of basalt fibre in enhancing mechanical properties and reducing water uptake by flax fibres was investigated. Tensile testing showed that basalt fibre improved stiffness, strength, and elongation at break by 8%, 67%, and 19%, respectively. Additionally, the outer basalt layer acted as a moisture barrier, reducing water absorption and limiting stiffness degradation to 11%. Flexural properties exhibited even greater enhancement, with increases exceeding 100% in both modulus and strength. However, under seawater immersion, the barrier effect was less pronounced, as flexural property losses in basalt–flax hybrid reinforced bio-epoxy (BFRB) composites were comparable to those of pure flax fibre-reinforced bio-epoxy (FFRB) composites. In terms of impact resistance, basalt fibre hybridisation significantly increased penetration and perforation energy thresholds by 140% and 123%, respectively. Notably, seawater immersion did not impair energy dissipation, with BFRB composites maintaining stable impact performance in wet conditions. These findings highlight the potential of BFRB composites as sustainable materials for semi-structural marine applications. Further research is recommended to optimise laminate thickness and stacking sequences for improved structural performance.
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Research context
OpenAlex topics: Natural Fiber Reinforced Composites · Mechanical Behavior of Composites · Structural Behavior of Reinforced Concrete
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
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1. Parveez B, Kittur MI, Badruddin IA, Kamangar S, Hussien M, Umarfarooq MA (2022) Scientific advancements in composite materials for aircraft applications: a review. Polymers 14:5007. https://doi.org/10.3390/polym1422500710.3390/polym14225007 ↗
2. Wazeer A, Das A, Abeykoon C, Sinha A, Karmakar A (2023) Composites for electric vehicles and automotive sector: a review. Green Energy Intell Transp 2:1–23. https://doi.org/10.1016/j.geits.2022.10004310.1016/j.geits.2022.100043 ↗
3. Reddy SSP, Suresh R, Mb H, Shivakumar BP (2021) Use of composite materials and hybrid composites in wind turbine blades. Materials Today: Proceedings 46:2827–2830. https://doi.org/10.1016/j.matpr.2021.02.74510.1016/j.matpr.2021.02.745 ↗
4. Dolz M, Martinez X, Sá D, Silva J, Jurado A (2024) Composite materials, technologies and manufacturing: current scenario of European union shipyards. Sh Offshore Struct 19:1157–1172. https://doi.org/10.1080/17445302.2023.222916010.1080/17445302.2023.2229160 ↗
5. Yadav K, Dutta K, Poudel R, Karak N (2024) Biocomposites for automotive applications. In: Karak N (ed) Advances in biocomposites and their applications. Woodhead Publishing, Cambridge, pp 257–284. https://doi.org/10.1016/B978-0-443-19074-2.00009-510.1016/B978-0-443-19074-2.00009-5 ↗
6. Ramanan G, Akshatha RD, Manvi AU, Suhas BA, Pruthvi DK (2022) Investigation of bio degradable natural fibers reinforced hybrid composites for aircraft structures. Mater Today: Proc 52:1211–1215. https://doi.org/10.1016/j.matpr.2021.11.03910.1016/j.matpr.2021.11.039 ↗
7. Elfaleh I, Abbassi F, Habibi M, Ahmad F, Guedri M, Nasri M, Garnier C (2023) A comprehensive review of natural fibers and their composites: an eco-friendly alternative to conventional materials. Results Eng 19:1–31. https://doi.org/10.1016/j.rineng.2023.10127110.1016/j.rineng.2023.101271 ↗
8. Khalid MY, Al Rashid A, Arif ZU, Ahmed W, Arshad H, Zaidi AA (2021) Natural fiber reinforced composites: sustainable materials for emerging applications. Results Eng 11:1–12. https://doi.org/10.1016/j.rineng.2021.10026310.1016/j.rineng.2021.100263 ↗
9. Lotfi A, Li H, Dao DV, Prusty G (2021) Natural fiber–reinforced composites: a review on material, manufacturing, and machinability. J Thermoplast Compos Mater 34:238–284. https://doi.org/10.1177/089270571984454610.1177/0892705719844546 ↗
10. Velasco-Parra JA, Valencia FR, Lopez-Arraiza A, Ramón-Valencia B, Castillo-López G (2023) Jute fibre reinforced biocomposite: seawater immersion effects on tensile properties and its application in a ship hull design by finite-element analysis. Ocean Eng 290:1–7. https://doi.org/10.1016/j.oceaneng.2023.11630110.1016/j.oceaneng.2023.116301 ↗
11. More AP (2022) Flax fiber–based polymer composites: a review. Adv Compos Hybrid Mater 5:1–20. https://doi.org/10.1007/s42114-021-00246-910.1007/s42114-021-00246-9 ↗
12. Moudood A, Rahman A, Öchsner A, Islam M, Francucci G (2019) Flax fiber and its composites: an overview of water and moisture absorption impact on their performance. J Reinf Plast Compos 38:323–339. https://doi.org/10.1177/073168441881889310.1177/0731684418818893 ↗
13. Wang J, Li Y, Li Q, Long Y, Yu T, Li Z (2024) Evolution of stiffness in flax yarn within flax fiber reinforced composites during moisture absorption. Compos B Eng 268:1–12. https://doi.org/10.1016/j.compositesb.2023.11109610.1016/j.compositesb.2023.111096 ↗
14. Pisupati A, Bonnaud L, Deléglise-Lagardère M, Park CH (2021) Influence of environmental conditions on the mechanical properties of flax fiber reinforced thermoset composites. Appl Compos Mater 28:633–649. https://doi.org/10.1007/s10443-021-09885-z10.1007/s10443-021-09885-z ↗
15. Mahmud SH, Akram MW, Ahmed MF, Habib MAB (2023) Preparation and investigation of mechanical and physical properties of flax/glass fabric reinforced polymer hybrid composites. J Text Sci Technol 9:165–182. https://doi.org/10.4236/jtst.2023.9301110.4236/jtst.2023.93011 ↗
16. Wang A, Wang X, Xian G (2020) Mechanical, low-velocity impact, and hydrothermal aging properties of flax/carbon hybrid composite plates. Polym Test 90:1–10. https://doi.org/10.1016/j.polymertesting.2020.10675910.1016/j.polymertesting.2020.106759 ↗
17. Fiore V, Scalici T, Calabrese L, Valenza A, Proverbio E (2016) Effect of external basalt layers on durability behaviour of flax reinforced composites. Compos B Eng 84:258–265. https://doi.org/10.1016/j.compositesb.2015.08.08710.1016/j.compositesb.2015.08.087 ↗
18. Živković I, Fragassa C, Pavlović A, Brugo T (2017) Influence of moisture absorption on the impact properties of flax, basalt and hybrid flax/basalt fiber reinforced green composites. Compos B Eng 111:148–164. https://doi.org/10.1016/j.compositesb.2016.12.01810.1016/j.compositesb.2016.12.018 ↗
19. Sutherland LS (2018) A review of impact testing on marine composite materials: part I – marine impacts on marine composites. Compos Struct 188:197–208. https://doi.org/10.1016/j.compstruct.2017.12.07310.1016/j.compstruct.2017.12.073 ↗
20. Papa I, Ricciardi MR, Antonucci V, Pagliarulo V, Lopresto V (2018) Impact behaviour of hybrid basalt/flax twill laminates. Compos B Eng 153:17–25. https://doi.org/10.1016/j.compositesb.2018.07.02510.1016/j.compositesb.2018.07.025 ↗
21. Panico M, Cozzolino E, Papa I, Taha I, Lopresto V (2024) An investigation of the mechanical properties of flax/basalt epoxy hybrid composites from a sustainability perspective. Polymers 16:1–21. https://doi.org/10.3390/polym1619283910.3390/polym16192839 ↗
22. Dogar MMA, Mubashar A, Masud M, Ayub U, Anwar S, Wang X (2025) Influence of fibre stacking sequence on impact resistance and residual strength in flax/basalt hybrid laminates. Appl Compos Mater 32:681–702. https://doi.org/10.1007/s10443-024-10294-110.1007/s10443-024-10294-1 ↗
23. Yorseng K, Mavinkere Rangappa S, Parameswaranpillai J, Siengchin S (2022) Towards green composites: bioepoxy composites reinforced with bamboo/basalt/carbon fabrics. J Clean Prod 363:1–13. https://doi.org/10.1016/j.jclepro.2022.13231410.1016/j.jclepro.2022.132314 ↗
24. Ead AS, Appel R, Alex N, Ayranci C, Carey JP (2021) Life cycle analysis for green composites: a review of literature including considerations for local and global agricultural use. J Eng Fiber Fabr 16:1–20. https://doi.org/10.1177/1558925021102694010.1177/15589250211026940 ↗
25. Moudood A, Rahman A, Huq NML, Öchsner A, Islam MM, Francucci G (2020) Mechanical properties of flax fiber-reinforced composites at different relative humidities: experimental, geometric, and displacement potential function approaches. Polym Compos 41:4963–4973. https://doi.org/10.1002/pc.2576610.1002/pc.25766 ↗
26. Wang W, Zhang Y, Mo Z, Chouw N, Jayaraman K, Xu Z (2023) A critical review on the properties of natural fibre reinforced concrete composites subjected to impact loading. J Build Eng 77:107497. https://doi.org/10.1016/j.jobe.2023.10749710.1016/j.jobe.2023.107497 ↗
27. Roy-Barman M, Jeandel C (2016) 206Development and Limitations of Biological Activity in Surface Waters. In: Roy-Barman M, Jeandel C (eds) Marine Geochemistry: Ocean Circulation, Carbon Cycle and Climate Change. Oxford University Press, pp 0-[object Object]10.1093/acprof:oso/9780198787495.003.0007 ↗
28. Yan L, Chouw N (2015) Effect of water, seawater and alkaline solution ageing on mechanical properties of flax fabric/epoxy composites used for civil engineering applications. Constr Build Mater 99:118–127. https://doi.org/10.1016/j.conbuildmat.2015.09.02510.1016/j.conbuildmat.2015.09.025 ↗
29. Feraboli P, Kedward KT (2006) A new composite structure impact performance assessment program. Compos Sci Technol 66:1336–1347. https://doi.org/10.1016/j.compscitech.2005.09.00910.1016/j.compscitech.2005.09.009 ↗
30. Valencia FR, Castillo-López G, Aurrekoetxea J, Lopez-Arraiza A (2022) Fibre–wood laminate biocomposites: seawater immersion effects on flexural and low energy impact properties. Polymers 14:4038–4051. https://doi.org/10.3390/polym1419403810.3390/polym14194038 ↗
31. Fiore V, Sanfilippo C, Calabrese L (2019) Influence of sodium bicarbonate treatment on the aging resistance of natural fiber reinforced polymer composites under marine environment. Polym Test 80:1–9. https://doi.org/10.1016/j.polymertesting.2019.10610010.1016/j.polymertesting.2019.106100 ↗
32. Paturel A, Dhakal HN (2020) Influence of water absorption on the low velocity falling weight impact damage behaviour of flax/glass reinforced vinyl ester hybrid composites. Molecules. https://doi.org/10.3390/molecules2502027810.3390/molecules25020278 ↗
33. Ravandi M, Teo WS, Tran LQN, Yong MS, Tay TE (2017) Low velocity impact performance of stitched flax/epoxy composite laminates. Compos B Eng 117:89–100. https://doi.org/10.1016/j.compositesb.2017.02.00310.1016/j.compositesb.2017.02.003 ↗
34. Liu Z, Zheng X, Zhang H, Li W, Jiang R, Zhou X (2022) Review on formation of biofouling in the marine environment and functionalization of new marine antifouling coatings. J Mater Sci 57:18221–18242. https://doi.org/10.1007/s10853-022-07791-810.1007/s10853-022-07791-8 ↗
35. Osa-uwagboe N, Silberschmidt VV, Demirci E (2024) Review on mechanical performance of fibre-reinforced plastics in marine environments. Appl Compos Mater 31:1991–2018. https://doi.org/10.1007/s10443-024-10247-810.1007/s10443-024-10247-8 ↗
36. Lopez-Arraiza A, Essamari L, Iturrondobeitia M, Boullosa-Falces D, Justel D (2025) Life cycle assessment of glass fibre versus flax fibre reinforced composite ship hulls. Sci Rep 15:16283. https://doi.org/10.1038/s41598-025-00811-y10.1038/s41598-025-00811-y ↗
37. Jang J, Maydison, Kim Y, Han Z, Oh D (2023) Effect of void content on the mechanical properties of GFRP for ship design. J Mar Sci Eng 11. https://doi.org/10.3390/jmse1106125110.3390/jmse11061251 ↗
38. Gunoz A, Ozaltay UO (2025) Penetration and perforation thresholds of GnPs reinforced Carbon/Glass fiber epoxy hybrid composites. Polym Compos 46:10647–10664. https://doi.org/10.1002/pc.7002410.1002/pc.70024 ↗
39. Ashby MF, Shercliff H, Cebon D (2019) Materials: engineering, science, processing and design. Butterworth-Heinemann, Oxford
40. Yalçınkaya S, Mertgenç Yoldaş D, Yoldaş MF (2025) Experimental investigation of the effect of seawater on glass and carbon fiber composites via mechanical characterization. J Compos Sci. https://doi.org/10.3390/jcs903010710.3390/jcs9030107 ↗