Leather fibres as reinforcement for epoxy composites: A novel perspective

Senthil, R.; Vedakumari, Sathyaraj Weslen; Hemalatha, Thiagarajan; Das, B.; Sastry, T. P.

doi:10.1007/s12221-015-0181-z

Cited by 14 publications

(6 citation statements)

References 17 publications

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“…The sample with a fiber content of 30% showed a better tensile strength and a higher modulus compared to the other composites, due to the better distribution of the fibers in the matrix and thus to a better adhesion between them [ 116 ]. Leather fibers have also been used as reinforcing materials for epoxy resin laminates in combination with carbon nanoparticles [ 117 ]. The composites showed enhanced mechanical properties, such as tensile, flexural, and impact strength, along with an improved elongation at break and a higher modulus as well as electrical conductivity [ 117 ].…”

Section: Direct Utilization Of Chrome-tanned Leather In Polymer-bamentioning

confidence: 99%

“…Leather fibers have also been used as reinforcing materials for epoxy resin laminates in combination with carbon nanoparticles [ 117 ]. The composites showed enhanced mechanical properties, such as tensile, flexural, and impact strength, along with an improved elongation at break and a higher modulus as well as electrical conductivity [ 117 ].…”

Section: Direct Utilization Of Chrome-tanned Leather In Polymer-bamentioning

confidence: 99%

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Recycling of Chrome-Tanned Leather and Its Utilization as Polymeric Materials and in Polymer-Based Composites: A Review

2021

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Tanneries generate large amounts of solid and liquid wastes, which contain harmful chemical compounds in the environment, such as chromium, that is used in the tanning process. Until now, they have been almost completely dumped in landfills. Thus, finding eco-sustainable and innovative alternatives for the management and disposal of these wastes is becoming a huge challenge for tanneries and researchers around the world. In particular, the scientific and industrial communities have started using wastes to produce new materials exploiting the characteristics of leather, which are strongly connected with the macromolecular structure of its main component, collagen. None of the reviews on leather waste management actually present in the scientific literature report in detail the use of leather to make composite materials and the mechanical properties of the materials obtained, which are of fundamental importance for an effective industrial exploitation of leather scraps. This comprehensive review reports for the first time the state of the art of the strategies related to the recovery and valorization of both hydrolyzed collagen and leather waste for the realization of composite materials, reporting in detail the properties and the industrial applications of the materials obtained. In the conclusion section, the authors provide practical implications for industry in relation to sustainability and identify research gaps that can guide future authors and industries in their work.

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Section: Direct Utilization Of Chrome-tanned Leather In Polymer-bamentioning

confidence: 99%

Section: Direct Utilization Of Chrome-tanned Leather In Polymer-bamentioning

confidence: 99%

Recycling of Chrome-Tanned Leather and Its Utilization as Polymeric Materials and in Polymer-Based Composites: A Review

2021

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“…The conversion of leather wastes generated from leather industries into valuable products is a growing interest among researchers because of the large amount of wastes generated from the leather and footwear industry which constitute environmental pollution. 9 Polymer composites of leather wastes based fillers have been reported to be useful for many applications such as in construction materials, automobile interior mouldings, heat and sound insulating boards, shoe soles and flooring materials. 10 Waste leather buff filled polycaprolactone (PCL) biocomposites were also developed, and they could be used to produce low cost materials suitable for applications in footwear, bags and suitcase industries.…”

Section: Introductionmentioning

confidence: 99%

Effect of processing temperatures on the thermal and mechanical properties of leather waste-ABS composites

Owen

Achukwu

Arukalam

et al. 2021

Composites and Advanced Materials

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The effect of varying processing temperatures (200, 220 and 240°C) on the thermal and mechanical properties of uncoated and epoxy-coated chrome-tanned leather wastes-ABS composites has been studied. The results obtained showed that the mechanical properties of the composites decreased as the processing temperature increased. Epoxy-coated leather wastes fibre-ABS (CLWABS) composite yielded better mechanical properties compared to the uncoated leather wastes-ABS composite (LWABS). These results were obtained at an optimized processing temperature of 200°C. Furthermore, the results were confirmed by the field emission scanning electron microscopy (FESEM) studies. The differential scanning calorimetry (DSC) studies revealed that the epoxy-coated leather wastes fibres (CLW) showed higher onset and melting temperatures of 131.8 and 179.35°C than the uncoated leather wastes fibres (LW) with glass transition (Tg) and melting (Tm) temperatures of 128.2 and 169.4°C, respectively. When the LW and CLW fibres were mixed with Acrylonitrile butadiene styrene (ABS), the Tg and Tm of CLWABS composite were found to be 94.9 and 269.8°C, respectively, higher than the LWABS composite with Tg and Tm of 89.1 and 261.6°C, respectively. Thus, this study has demonstrated that utilization of epoxy-coated chrome-tanned leather wastes fibres as fillers in the design of ABS-based composites will help a great deal in addressing the problem of solid waste pollutants in our environment.

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“…The COOH-MWCNT performs as a conductive bridge connecting WCFS layers. The electrical conductivity of composites including WCFS depends upon the weave pattern as well as the contacts between the adjacent tows with different directions of high-aspect-ratio fillers in a polymer matrix [ 32 , 74 ]. In other words, WCFS can promote the isotropic conductivity of composite BPs.…”

Section: Resultsmentioning

confidence: 99%

Performance Evaluation for Ultra-Lightweight Epoxy-Based Bipolar Plate Production with Cycle Time Reduction of Reactive Molding Process

et al. 2022

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The commercial viability of fuel cells for vehicle application has been examined in the context of lightweight material options, as well as in combination with improvements in fuel cell powertrain. Investigation into ultra-lightweight bipolar plates (BPs), the main component in terms of the weight effect, is of great importance to enhance energy efficiency. This research aims to fabricate a layered carbon fiber/epoxy composite structure for BPs. Two types of carbon fillers (COOH-MWCNT and COOH-GNP) reinforced with woven carbon fiber sheets (WCFS) have been utilized. The conceptual idea is to reduce molding cycle time by improving the structural, electrical, and mechanical properties of BPs. Reducing the reactive molding cycle time is required for commercial production possibility. The desired crosslink density of 97%, observed at reactive molding time, was reduced by 83% at 140 °C processing temperature. The as-fabricated BPs demonstrate excellent electrical conductivity and mechanical strength that achieved the DOE standard. Under actual fuel cell operation, the as-fabricated BPs show superior performance to commercial furan-based composite BPs in terms of the cell potential and maximum power. This research demonstrates the practical and straightforward way to produce high-performance and reliable BPs with a rapid production rate for actual PEMFC utilization.

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Leather fibres as reinforcement for epoxy composites: A novel perspective

Cited by 14 publications

References 17 publications

Recycling of Chrome-Tanned Leather and Its Utilization as Polymeric Materials and in Polymer-Based Composites: A Review

Recycling of Chrome-Tanned Leather and Its Utilization as Polymeric Materials and in Polymer-Based Composites: A Review

Effect of processing temperatures on the thermal and mechanical properties of leather waste-ABS composites

Performance Evaluation for Ultra-Lightweight Epoxy-Based Bipolar Plate Production with Cycle Time Reduction of Reactive Molding Process

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