Potential of natural fibers in the modification of mechanical behavior of polypropylene hybrid composites

Mahesh, A.; Rudresh, B. M.; Reddappa, H.N.

doi:10.1016/j.matpr.2021.08.195

Cited by 7 publications

(6 citation statements)

References 15 publications

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“…The impact strength results of PLA/BioPE/POE-g-GMA and PLA/BioPE/SEBS-g-MA bioblends are relevant from a technological point of view, as they surpass the impact strength values of widely used commodity polymers in the development of products such as polypropylene (PP) [45][46][47], polystyrene (PS) [48,49] and polyamide 6 (PA6) [50][51][52]. From a sustainable point of view, it is extremely important, as polymers from renewable sources such as PLA and BioPE are being used in the bioblend, being an alternative for the use of the aforementioned polymers.…”

Section: N E a T P L A N E A T B Io P E P L A /B Io P E P L A /B Io P E /P O E -G -G M A P L A /B Io P E /E E -G -G M A P L A /B Io P E /mentioning

confidence: 99%

Production of Eco-Sustainable Materials: Compatibilizing Action in Poly (Lactic Acid)/High-Density Biopolyethylene Bioblends

et al. 2021

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Motivated by environment preservation, the increased use of eco-friendly materials such as biodegradable polymers and biopolymers has raised the interest of researchers and the polymer industry. In this approach, this work aimed to produce bioblends using poly (lactic acid) (PLA) and high-density biopolyethylene (BioPE); due to the low compatibility between these polymers, this work evaluated the additional influence of the compatibilizing agents: poly (ethylene octene) and ethylene elastomer grafted with glycidyl methacrylate (POE-g-GMA and EE-g-GMA, respectively), polyethylene grafted with maleic anhydride (PE-g-MA), polyethylene grafted with acrylic acid (PE-g-AA) and the block copolymer styrene (ethylene-butylene)-styrene grafted with maleic anhydride (SEBS-g-MA) to the thermal, mechanical, thermomechanical, wettability and morphological properties of PLA/BioPE. Upon the compatibilizing agents’ addition, there was an increase in the degree of crystallinity observed by DSC (2.3–7.6% related to PLA), in the thermal stability as verified by TG (6–15 °C for TD10%, 6–11 °C TD50% and 112–121 °C for TD99.9% compared to PLA) and in the mechanical properties such as elongation at break (with more expressive values for the addition of POE-g-GMA and SEBS-g-MA, 9 and 10%, respectively), tensile strength (6–19% increase compared to PLA/BioPE bioblend) and a significant increase in impact strength, with evidence of plastic deformation as observed through SEM, promoted by the PLA/ BioPE phases improvement. Based on the gathered data, the added compatibilizers provided higher performing PLA/BioPE. The POE-g-GMA compatibilizer was considered to provide the best properties in relation to the PLA/BioPE bioblend, as well as the PLA matrix, mainly in relation to impact strength, with an increase of approximately 133 and 100% in relation to PLA and PLA/BioPE bioblend, respectively. Therefore, new ecological materials can be manufactured, aiming at benefits for the environment and society, contributing to sustainable development and stimulating the consumption of eco-products.

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Section: N E a T P L A N E A T B Io P E P L A /B Io P E P L A /B Io P E /P O E -G -G M A P L A /B Io P E /E E -G -G M A P L A /B Io P E /mentioning

confidence: 99%

Production of Eco-Sustainable Materials: Compatibilizing Action in Poly (Lactic Acid)/High-Density Biopolyethylene Bioblends

et al. 2021

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“…And the low density of the plant fibers used (about 1.5 g/cm 3 ) results in a lower density and higher specific strength of the resulting FRC compared to composites prepared from talc (density about 2.78 g/cm 3 ), carbon fibers (density about 1.8 g/cm 3 ) and glass fibers (density about 2.5 g/cm 3 ). Compared to, for example, the extrusion and injection molding methods currently used in most studies [75][76][77][78][79][80][81][82] (Figure 11A and Table S2)of FRC materials, the method in this experiment is more suitable for the preparation of FRC with high fiber content due to the fact that both the plant and PP are prepared in fiber form and mixed using a carding machine, which is less abrasive on the machine and has lower experimental requirements compared to blending using an extruder or injection molding machine. Figure 11B and Table S3 detail and compare the mechanical properties of some of the products prepared by the above methods.…”

Section: Comparison Of Frc With Other Pp Composites and Its Potential...mentioning

confidence: 99%

Study on the mechanical properties of ramie fiber/polypropylene composites prepared by hot pressing after the carding machine mixing

Jin,

Huang,

Guo

et al. 2024

Polymer Composites

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A growing variety of composites utilize natural plant fibers with naturally occurring veins structured hierarchically in an effort to reduce dependence on petroleum‐based materials. In this article, ramie fibers were extracted by alkaline delignification. Then, ramie fibers and PP matrix, were prepared in filament form and an amino‐silane coupling agent KH550, and maleic anhydride grafted polypropylene were added to improve interfacial compatibility. Ramie fiber/polypropylene fiber‐reinforced polymer composites (FRC) were prepared by hot pressing after using a carding machine. This method preserves the structure and length of ramie fibers to a large extent, thus greatly improving the mechanical properties of the material. After optimization, the FRC prepared from plant fibers of 2 cm length and 60% content had a density of 0.95 g/cm3, showed an increase in tensile and flexural strength of 276% and 339%, respectively, compared to the pure PP matrix. The specific strength of the FRC in the work was higher than galore FRC prepared from talc, carbon fiber, other plant fibers, and so forth. The FRC has a wide range of potential applications due to its own low‐cost, lightweight, and high‐performance, and is highly feasible in replacing the current polymers in the preparation of numerous everyday items.Highlights The preparation method of FRC resulted in a more complete fiber length and structure. The mechanism to improve the interfacial compatibility of RF and PP is discussed. The effect of varying fiber length on the FRC mechanical properties was investigated.

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“…Due to its qualities as an anti‐bacterial, anti‐UV, anti‐static, absorbent material, and more, bamboo has been used in a variety of industries including textiles, paper, construction, packaging, and healthcare. [ 19,21,22 ]…”

Section: Introductionmentioning

confidence: 99%

“…Due to its qualities as an anti-bacterial, anti-UV, anti-static, absorbent material, and more, bamboo has been used in a variety of industries including textiles, paper, construction, packaging, and healthcare. [19,21,22] Based on the available literature, it is inferred that there are no works related to hybrid composites consisting of moringa oleifera and bamboo fibers. In the present investigation, moringa oleifera and bamboo fibers extracted from Ethiopia are studied to understand their mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Investigation of tensile and flexural properties of habesha moringa‐bamboo fiber reinforced epoxy hybrid composite

et al. 2023

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In the present investigation, moringa oleifera and bamboo fibers extracted from Ethiopia are studied to understand their mechanical properties. Three types of woven composites namely moringa/epoxy, bamboo/epoxy and moringa/bamboo/epoxy (hybrid) are fabricated by maintaining 60 vol% fiber content. Additionally, neat epoxy samples are prepared for comparison. Tensile and flexural properties are investigated in terms of strength and modulus. Tensile test results depict brittle failure for all composites and infer increase in fracture strain of woven composites as compared with neat epoxy. Tensile modulus and strength of woven composites increase in the range of 19%–39% and 18%–281%, respectively as compared with neat ones. Flexural stress–strain profiles of neat epoxy, moringa/epoxy and moringa/bamboo/epoxy composites linear curves until failure indicating brittle mode while bamboo/epoxy composites shows non‐linear stress–strain profiles revealing non‐brittle mode of failure. Flexural properties exhibited by bamboo/epoxy and moringa/bamboo/epoxy reveal comparable properties to each other yet superior than moringa/epoxy and neat epoxy composites mainly attributed to the good bonding of constituents and compatibility. All the woven composites reveal an increase in flexural modulus and strength and are in the range of 31%–96% and 5.79%–51.12%, higher than the neat epoxy. Finally, fractured surfaces of specimens are analyzed using scanning electron microscope to understand the structure property correlations.

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Potential of natural fibers in the modification of mechanical behavior of polypropylene hybrid composites

Cited by 7 publications

References 15 publications

Production of Eco-Sustainable Materials: Compatibilizing Action in Poly (Lactic Acid)/High-Density Biopolyethylene Bioblends

Production of Eco-Sustainable Materials: Compatibilizing Action in Poly (Lactic Acid)/High-Density Biopolyethylene Bioblends

Study on the mechanical properties of ramie fiber/polypropylene composites prepared by hot pressing after the carding machine mixing

Investigation of tensile and flexural properties of habesha moringa‐bamboo fiber reinforced epoxy hybrid composite

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