Compression and water absorption behaviour of banana and sisal hybrid fiber polymer composites

Badyankal, Pramod V; Manjunatha, T.; Vaggar, Gurushanth B; Praveen, Keerthi

doi:10.1016/j.matpr.2020.02.695

Cited by 25 publications

(8 citation statements)

References 8 publications

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“…The results revealed improved mechanical properties and reduced water absorption effects in comparison to the nonhybrid epoxy composites derived from a single fiber. The water absorption behavior for banana‐ and sisal‐reinforced hybrid polymeric composites was investigated by Badyankal et al 20 It was reported that the hybrid composites comprising 10 wt% banana and 30% sisal has the minimum water absorption capacity. An investigation into water uptake of kenaf‐ and pineapple‐reinforced polymeric composites was carried out by Feng et al 21 The superiority of hybrid composites consisting the kenaf and pineapple in 25:75 was revealed over the nonhybrid kenaf‐based polymeric composites.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Saha

Kumar

Zindani³

2021

Polymer Composites

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The recent development of natural fiber-reinforced polymer composites have shown innumerable economic and environmental benefits for a vast array of engineering applications. It is quintessential to investigate the effect of water absorption on the composites that remain in the water for a maximum of their intended service period. This study is an effort in this direction that investigates the effect of water absorption on thermo-mechanical properties of flaxhemp-reinforced epoxy composites fabricated using compression hand layup technique with different weight fraction of fiber. The fabricated composites have been characterized physically (density and water absorption), thermomechanically (tensile, flexural, thermal conductivity, and dynamical mechanical analysis), and morphologically (scanning electron microscopy [SEM]). The analysis revealed that hemp-reinforced composites (S1) had the highest water absorption capabilities in comparison to the flax-reinforced composites (S5).Higher water absorption capability had an adverse effect on the mechanical properties of fabricated composites. However, hybrid composites (S2, S3, and S4) reported better performance with regard to S1. The increased water content, however, increased the thermal conductivity of composites and maximum has been revealed for S1 (0.82 W/mK) and minimum for S5 (0.48 W/mK). The water molecules showed detrimental effects on the viscoelastic properties and revealed S3 have better interlocking bond with the lowest reduction in storage modulus (12%) and glass transition temperature (4 C) in comparison to S1 (30%) under wet conditions. A comparative analysis of the thermo-mechanical properties was also made for developed composites under dry, saturated, and re-dried conditions. The SEM has been used to characterize the morphological and fracture behavior of the fabricated composites under the influence of water uptake. The effects of water molecules on the hygrothermal aging index and diffusion co-efficient have also been discussed. Overall, the hybridization of

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Section: Introductionmentioning

confidence: 99%

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Saha

Kumar

Zindani³

2021

Polymer Composites

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“…It is mainly due to its high cellulose, high hemicellulose, and low lignin concentration. 29 The composition with less ACSP filler absorbs the least amount of water, with values of 6.27% and 5.27%, respectively. This is due to high lignin concentration, which has fewer hydrogen bonding sites.…”

Section: Water Absorption Behavior Analysismentioning

confidence: 99%

Influence of Acacia concinna and Vachellia nilotica seed nanopowder on the properties of short Turkish hemp–reinforced epoxy composites

Kanimozhi¹,

Pandian²,

Gokulkumar

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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The study intends to examine the physical, mechanical, and moisture (water) absorption properties of Acacia concinna seed powder (ACSP) and Vachellia nilotica seed powder (VNSP) individually incorporated with short Turkish hemp (STH) natural fiber–reinforced composites (NFRCs) hybridized with epoxy matrix. ACSP and VNSP of size 30–40 nm were amalgamated with epoxy matrix in varying weight proportions (0, 2.5, 5, 7.5, and 10 wt%), and the composite laminates were stacked manually followed by hydraulic compression molding. The fabricated NFRC nano-filled samples were tested for their density and void content, tensile, compression, flexural, and impact strengths along with hardness and water absorption characteristics. The incorporation of 7.5% ACSP and VNSP improved physicomechanical properties viz., 15.27% and 16.64% increase in the tensile strength, 16.39% and 16.41% increase in the flexural strength, 20.15% and 20.19% increase in the impact strength, 11.38% and 11.41% increase in the compressive strength, as well as 15.17% and 15.21% increase in the hardness, compared to non-filler composites. On the basis of the results acquired from various compositions of ACSP and VNSP, STH-based NFRCs were fabricated with the best proportion (7.5 wt%) of both the seed powders, and their physiomechanical properties were determined. The composites were analyzed using an atomic force microscope and energy-dispersive X-ray spectroscope to determine their suitability for diverse applications. Using scanning electron microscopy, we analyzed the bonding nature at the fiber/matrix interface. On the basis of the results obtained, it was found that the combination of ACSP and VNSP improved the performance of the fabricated STH-based NFRCs. In addition, these composites had a higher moisture resistance, which might have implications for marine and automobile structural applications.

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“…This is attributed to the removal of hydroxyl groups because of NaOH treatment and it reduces the hydrophilic behavior of banana and sisal fiber. [ 86 ] Das and Biswas (2016) [ 87 ] studied the effect of fiber length and fiber percentage on the water absorption behavior of coir/epoxy polymer composite. The water intake percentage was increased with increasing fiber length and fiber percentage.…”

Section: Assessment Of Natural Fiber Compositesmentioning

confidence: 99%

Recent developments and challenges in natural fiber composites: A review

et al. 2022

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The continuous demands for reducing environmental impact and energy consumption are the major driving factors for the development of natural fiber (NF)-reinforced composites (NFRCs). The huge demand for sustainable materials in industries leads to the usage of NFs in product developments. These NFs are more attractive due to their lightweight, cost-effectiveness, ease of availability, and environmentally friendly aspects. Green composites are the best alternatives in place of petroleum-based composites which meet the current industrial requirements. In recent years, researchers are more focused on the development of NF composites as a potential candidate in real-life applications due to economic advantages. This review gives a brief overview of NFs introduction, types, economic aspects, and the recent developments in NFRCs with an analysis of mechanical, thermal, and dielectric properties. Moreover, the water absorption behavior, applications, and challenges in using NFs are also studied in this review. Additionally, this review will motivate the researchers for further developments and exist as foundation literature for upcoming researchers.

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Compression and water absorption behaviour of banana and sisal hybrid fiber polymer composites

Cited by 25 publications

References 8 publications

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Investigation of the effect of water absorption on thermomechanical and viscoelastic properties of flax‐hemp‐reinforced hybrid composite

Influence of Acacia concinna and Vachellia nilotica seed nanopowder on the properties of short Turkish hemp–reinforced epoxy composites

Recent developments and challenges in natural fiber composites: A review

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