Eco-friendly treatment and coating for improving the performance of sisal composites

Sahu, Parul; Gupta, Manju Lata

doi:10.1016/j.polymertesting.2020.106923

Cited by 31 publications

(19 citation statements)

References 39 publications

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“…17–21 Thus, Ghazter et al 22 experimented with the effect of various viscosities of epoxy coating solutions (1:4, 1:5, and 1:6) on the physical, mechanical, and morphological properties of kenaf/epoxy composites, and obtained optimum results at 1:6 (epoxy: diluent) coating solution. Similar research studies have been conducted, 23,24 and the findings are somewhat in line with observations of Ghazter et al 22…”

Section: Introductionsupporting

confidence: 92%

“…[17][18][19][20][21] Thus, Ghazter et al 22 experimented with the effect of various viscosities of epoxy coating solutions (1:4, 1:5, and 1:6) on the physical, mechanical, and morphological properties of kenaf/epoxy composites, and obtained optimum results at 1:6 (epoxy: diluent) coating solution. Similar research studies have been conducted, 23,24 and the findings are somewhat in line with observations of Ghazter et al 22 This study explored a novel approach to applying different concentrations of epoxy coating on the silane-treated kenaf fiber for utilization as the reinforcing fillers in recycled PET composite. Thus, in this study, kenaf fibers were treated with aminopropyl silane to reduce the propensity for moisture absorption and as well enhance its adhesion property.…”

Section: Introductionsupporting

confidence: 85%

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Effect of epoxy concentrations on thermo-mechanical properties of kenaf fiber – recycled poly (ethylene terephthalate) composites

Owen

Achukwu

Akil

et al. 2022

Journal of Industrial Textiles

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The effect of different concentrations of epoxy surface coating treatment on the thermal and mechanical properties of kenaf fiber reinforced recycled poly (ethylene terephthalate) (RPET) composites was studied. Silane-treated kenaf fibers (SKF) were epoxy-coated with optimized coating concentrations (in the ratios of 1:4, 1:5, and 1:6 epoxy to acetone solutions) to improve the thermal degradation/decomposition resistance and interfacial bonding with RPET matrix. The different epoxy coated-silane treated kenaf fibers 1:4 ESKF, 1:5 ESKF, and 1:6 ESKF were compounded with RPET at an optimized temperature of 240°C, and their constituents’ composites KF/RPET, 1:4 ESKF/RPET, 1:5 ESKF/RPET, and 1:6 ESKF/RPET were subjected to thermal, mechanical and microstructural investigation. The obtained results showed some remarkable effects of epoxy concentrations on the chemical and surface structures of the treated fibers. Thermal properties of both ESKF and ESKF/RPET composites were more stable and improved with different concentrations of epoxy treatment compared to the untreated counterparts. 1:4 ESKF and 1:5 ESKF were the most thermally stable with onset degradation and DTG decomposition temperatures of 331.6°C and 381.7°C, and 324.0°C and 388.7°C respectively. Mechanical properties of the epoxy-coated composites were higher and further improved with epoxy concentrations and fiber loadings compared to uncoated composites. Hence, the epoxy concentration of 1:4 gave the maximum tensile and impact properties, and at 10 wt. % fiber loading within the lower loading regions, followed by 1:5 with outstanding flexural properties. The coated-treated composites showed strong fiber/matrix bonding with no evidence of fiber decomposition compared to the untreated composites with poor fiber/matrix interaction. The current research findings are original and valid for improving the thermal degradation resistance and stability of natural fibers, and the mechanical properties of natural fiber reinforced engineering thermoplastic composites. The epoxy coated – silane-treated textile kenaf fibers reinforced with recycled PET composites have the potentials to be utilized in high-temperature industrial and engineering applications.

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Section: Introductionsupporting

confidence: 92%

Section: Introductionsupporting

confidence: 85%

Effect of epoxy concentrations on thermo-mechanical properties of kenaf fiber – recycled poly (ethylene terephthalate) composites

Owen

Achukwu

Akil

et al. 2022

Journal of Industrial Textiles

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“…They showed that exposing a plant fiber composite to a humid environment results in a decrease in mechanical properties when water leaks into the material. For different composites of plant fibers, such as composites with fibers of bamboo, 12 jute, 13 sisal, 14 hemp, 15 or flax, [16][17][18] this loss of properties due to water absorption was observed. This decrease in mechanical properties with the rate of moisture absorption may be minimized with the aid of chemical surface treatments or fiber treatments.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydric aging on the static and vibration behavior of 3D printed bio-based flax fiber reinforced poly-lactic acid composites

Kesentini

Mahi

Rebière

et al. 2022

Polymers and Polymer Composites

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Moisture accumulation and life span in a hydric setting are major concerns for natural fibers used for the reinforcement of bio-based composites. This article discusses the effect of water aging on the mechanical properties of poly-lactic acid composites reinforced with flax fibers produced by 3D printing. Water absorption of composites is measured and it was observed that the bio-based composite seems to be Fick’s model with a percentage of absorption at saturation equal to 1.2%. To determine the effect of water absorption on static and vibration mechanical properties, various immersion periods are chosen. Water aging obviously influences the stiffness and tensile failure; so, a decline in the Young’s modulus from 2.2 to 1.7 GPa and in strength from 36 to 30.5 MPa is seen. Nevertheless, the damping factor shows an increase by about 16% as a function of the immersion period. These results could be explained by the plasticizing effect of water on bio-based composites, stimulated by moisture absorption.

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“…5 International Journal of Polymer Science consequence of surface modification by eco-friendly treatment (i.e., sodium bicarbonate treatment) and eco-friendly coating (i.e., PLA coating) of sisal fibres was perceived in terms of improvement in tensile and flexural properties of its composite. The tensile strength of the sisal composite was found lower than those of modified sisal composites as mentioned in Figures 4-6, but the trend of the impact test result was found reverse to the results of tensile and flexural test as illustrated in Figure 7 [11].…”

Section: Structure Of Natural Fibresmentioning

confidence: 74%

“…In this context, the researchers have successfully tried to replace these nonbiodegradable and noneco-friendly synthetic fibres with natural fibres which can replace these synthetic fibres in many cases. These natural fibres over synthetic fibres have many advantages; an effective comparison between the natural and the synthetic fibres is given in Table 1 [8][9][10][11]. Polymeric composites that are reinforced by the biomass (i.e., natural fibres) in orientations, different sizes, shapes, and in wt.%/vol.% are biocomposites.…”

Section: Introductionmentioning

confidence: 99%

A Review on Natural Fibre-Reinforced Biopolymer Composites: Properties and Applications

Prakash

Sahu

Mohankumar³

et al. 2022

International Journal of Polymer Science

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In ongoing decades, material researchers and scientists are giving more consideration towards the improvement of biobased polymer composites as various employments of items arranged by natural fibres and petrochemical polymers prompt natural awkwardness. The goal of this review paper is to provide an intensive review and applications of the foremost appropriate commonly used biodegradable polymer composites. It is imperative to build up the completely/incompletely biodegradable polymer composites without bargaining the mechanical, physical, and thermal properties which are required for the end-use applications. This reality roused to create biocomposite with better execution alongside the least natural effect. The utilization of natural fibre-reinforced polymer composites is concerned with the mechanical properties that are highly dependent on the morphology, hydrophilic tendency, aspect ratio, and dimensional stability of the natural fibre. With this in-depth consideration of eco-friendly biocomposites, structural application materials in the infrastructure, automotive industry, and consumer applications of the following decade are attainable within the near future.

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Eco-friendly treatment and coating for improving the performance of sisal composites

Cited by 31 publications

References 39 publications

Effect of epoxy concentrations on thermo-mechanical properties of kenaf fiber – recycled poly (ethylene terephthalate) composites

Effect of epoxy concentrations on thermo-mechanical properties of kenaf fiber – recycled poly (ethylene terephthalate) composites

Effect of hydric aging on the static and vibration behavior of 3D printed bio-based flax fiber reinforced poly-lactic acid composites

A Review on Natural Fibre-Reinforced Biopolymer Composites: Properties and Applications

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