Thermal Degradation and Mechanical Behavior of Banana Pseudo-Stem Reinforced Composites

Hassan, Mohamad Zaki; Salit, Mohd Sapuan; Rasid, Zainudin A.

doi:10.35940/ijrte.d8812.118419

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…However, the appropriate use of this biomass can provide significant economic advantages too [3]. The fibres extracted from the banana pseudostem have good mechanical strength, are biodegradable, and are compatible with polymer resin in composite processing [6,7].…”

Section: Introductionmentioning

confidence: 99%

Influence of Layering Pattern, Fibre Architecture, and Alkalization on Physical, Mechanical, and Morphological Behaviour of Banana Fibre Epoxy Composites

Gebremaryam,

Shahapurkar,

Chenrayan

et al. 2023

International Journal of Polymer Science

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In the current investigation, the mechanical properties of epoxy composites reinforced with banana pseudostem fibres, specifically focusing on tensile and impact behaviour, are investigated. The manufacturing process employed the meticulous hand-lay-up technique to fabricate six distinct samples. These samples included various combinations of short and woven banana fibres, treated and untreated, as well as a hybrid configuration involving layers of woven and short fibres. A fixed weight ratio of 60% fibres to 40% epoxy matrix was maintained for consistency. To ensure optimal material integrity, a careful application of resin and hardener in a 10 : 1 weight ratio was layered, with each addition of fibre followed by thorough rolling to eliminate any potential bubbles. The density and void fraction of the resulting composites were meticulously assessed to gauge the influence of this layering approach. Additionally, an X-ray diffraction (XRD) analysis was conducted to ascertain the impact of the chemical treatment on the cellulose content of the fibres. Our findings revealed that the tensile and impact properties were notably superior in the woven fibre composites. In particular, the chemically treated woven banana fibre epoxy composite displayed impressive values of 64.95 MPa for tensile strength and 24.37 KJ/m2 for impact strength. To gain deeper insights into the structure-property relationship, test specimens were analyzed using scanning electron micrographs. Lastly, comparative analysis by mapping the tensile properties from our present work with those from existing studies was carried out.

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Section: Introductionmentioning

confidence: 99%

Influence of Layering Pattern, Fibre Architecture, and Alkalization on Physical, Mechanical, and Morphological Behaviour of Banana Fibre Epoxy Composites

Gebremaryam,

Shahapurkar,

Chenrayan

et al. 2023

International Journal of Polymer Science

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“…P‐20 and P‐30 composites show better elongation to loading as compared to E and P‐10 composites mainly attributed to the stiffer pumice particles. Further, this enhancement may also be due to the improved pumice surface and matrix interaction as a result of the coarseness of the pumice surface 27,28 . Nevertheless, the highest tensile strength of 48 MPa is depicted by P‐30 composites that are noted to be higher than all other compositions.…”

Section: Resultsmentioning

confidence: 98%

“…Further, this enhancement may also be due to the improved pumice surface and matrix interaction as a result of the coarseness of the pumice surface. 27,28 Nevertheless, the highest tensile strength of 48 MPa is depicted by P-30 composites that are noted to be higher than all other compositions.…”

Section: Densitymentioning

confidence: 88%

Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites

Shahapurkar,

Zelalem,

Chenrayan

et al. 2023

Polymer Engineering & Sci

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Pumice, which is prevalent in Ethiopia, is formed naturally during the quick cooling and solidifying of molten lava. Pumice is a naturally occurring mineral that, due to its high thermal resistance and lightweightness, can be an excellent candidate for reinforcing material for polymers. The present study investigates epoxy‐based composites reinforced with pumice particles by varying the pumice content (0, 10, 20, and 30 vol%). The densities of all composites reduce in comparison with neat epoxy as the volume proportion of pumice increases credited to the low density pumice particles. Tensile stress–strain curves depict neat epoxy with higher deformation than other pumice particulate‐filled composites in the linear elastic area followed by rapid brittle failure. Tensile modulus of all the composites increases in the range of 13%–67% in comparison with neat epoxy. The compressive characteristics of composites are greatly improved by the addition of pumice. Compressive moduli and specific compressive moduli of all composites increase with increasing volume fraction of pumice by 54%–58% and 65%–93%, respectively, in comparison with neat epoxy. The fracture toughness of P‐10, P‐20, and P‐30 composites improved by 18%, 54%, and 59%, respectively, as compared with neat epoxy mainly attributed to the foam‐like structure of pumice particles. SEM micrographs are used to analyze the morphology of compression‐tested specimens. Property mapping highlights the advantages of utilizing composites from present work over numerous syntactic foams.

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Investigating thermal and free vibrational properties of fabric sandwich composite materials for car hood application

Shiferaw Kebede,

Tegegne Abebe,

Asmare Tsegaw

et al. 2024

Journal of Reinforced Plastics and Composites

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Textile fabric wastes are the second most polluting materials in the world after plastic. This study investigated the thermal and free vibrational properties of the sandwich composites prepared from recycled fabric materials. Grey cotton fabric(C) and wool garment waste (G) reinforced a polyester matrix in a different layer arrangement (CCCC, CGCG, CGGC, GCCG, GGGG, and chopped). Thermogravimetric analysis (TGA) and dilatometry were performed to determine the thermal properties. TGA results showed similar initial weight loss for GCCG, CCCC, and CGGC (within a range of 25 °C–800°C) and for GCGC, GGGG, and chopped arrangements. All composites exhibited thermal stability up to 305°C. Between 310°C and 405°C, a gradual mass loss was observed, followed by more significant degradation above 405°C and residual mass loss observed at 655°C. Dilatometry tests reveal minimal volume change up to a heating temperature of 300°C for all durations (20 min, 40 min, and 60 min). In addition, the free-vibration analysis indicated poor energy-absorbing properties for CCCC, while CGGC sandwich composite specimen exhibited better energy-absorbing properties. Based on these results, it can be concluded that these composite materials are suitable for applications such as car hoods, which typically function below 105°C temperatures.

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Thermal Degradation and Mechanical Behavior of Banana Pseudo-Stem Reinforced Composites

Cited by 4 publications

References 20 publications

Influence of Layering Pattern, Fibre Architecture, and Alkalization on Physical, Mechanical, and Morphological Behaviour of Banana Fibre Epoxy Composites

Influence of Layering Pattern, Fibre Architecture, and Alkalization on Physical, Mechanical, and Morphological Behaviour of Banana Fibre Epoxy Composites

Investigation on the mechanical and fracture properties of lightweight pumice epoxy composites

Investigating thermal and free vibrational properties of fabric sandwich composite materials for car hood application

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