Improving the Compatibility and Mechanical Properties of Natural Fibers/Green Polyethylene Biocomposites Produced by Rotational Molding

Robledo‐Ortíz, Jorge R.; González‐López, Martín Esteban; Rodrigue, Denis; Gutiérrez-Ruiz, Juan F.; Prezas-Lara, Fernando; Pérez‐Fonseca, Aida Alejandra

doi:10.1007/s10924-020-01667-1

Cited by 53 publications

(31 citation statements)

References 25 publications

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“…This density reduction is due to voids formation owing to fiber agglomeration, weak fiber-matrix interface, and extractable vaporization (Mahfoudh et al 2013). Also, the decrease in the density is more evident in RM biocomposites due to the rotational molding process's low-shear nature, which produces their morphology observed in Figure 1 (Robledo-Ortíz et al 2020). The treated samples' density is not presented since no changes were observed by the thermal annealing treatment.…”

Section: Morphology and Densitymentioning

confidence: 99%

Crystallinity and impact strength improvement of wood-polylactic acid biocomposites produced by rotational and compression molding

Pérez‐Fonseca

Ramírez-Herrera

Talavera

et al. 2021

Maderas, Cienc. tecnol.

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Section: Morphology and Densitymentioning

confidence: 99%

Crystallinity and impact strength improvement of wood-polylactic acid biocomposites produced by rotational and compression molding

Pérez‐Fonseca

Ramírez-Herrera

Talavera

et al. 2021

Maderas, Cienc. tecnol.

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“…Samples were fabricated by using the extrusion process and, to find out the fiber orientation effectiveness, composites are cut by various off-set angles for comparison purposes and the results showed that at zero angle, composites showed the best mechanical properties whereas at 90 degrees some deviation was observed. Robledo-Ortiz et al developed green polyethylene natural fiber bio composites by using a rotational molding technique [ 57 ]. In this work, composites were prepared by using the rotomolded (rotational molding) technique to develop the bio composites.…”

Section: Selection Of Matrix Materials For Fabricationmentioning

confidence: 99%

Review of Hybrid Fiber Based Composites with Nano Particles—Material Properties and Applications

et al. 2020

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The present review article provides an overview of the properties of various natural and synthetic fibers for the fabrication of pure natural composites and the combination of both natural/synthetic fibers-based hybrid composites, bio-based resins, various fabrication techniques, chemical and mechanical properties of fibers, the effect of chemical treatment and the influence of nanoparticles on the composite materials. Natural fibers are becoming more popular and attractive to researchers, with satisfactory results, due to their availability, ease of fabrication, cost-effectiveness, biodegradable nature and being environmentally friendly. Hybrid composites made up of two different natural fibers under the same matrix material are more popular than a combination of natural and synthetic fibers. Recent studies relevant to natural fiber hybrid composites have stated that, due to their biodegradability and the strength of individual fibers causing an impact on mechanical properties, flame retardancy and moisture absorption, natural fibers need an additional treatment like chemical treatment for the fibers to overcome those drawbacks and to enhance their better properties. The result of chemical treatment on composite material properties such as thermal, mechanical and moisture properties was studied. Researchers found that the positive influence on overall strength by placing the filler materials (nanoparticles) in the composite materials. Hybrid composites are one of the fields in polymer science that are attracting consideration for various lightweight applications in a wide range of industries such as automobile, construction, shipping, aviation, sports equipment, electronics, hardware and biomedical sectors.

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“…21 Also, the agave fibers have relatively high crystallinity (70%), good mechanical properties, and thermal stability up to 220 C, 22 which make them appropriate as reinforcements for petroleum-based and bio-based polymers. 23,24 Based on the limited literature available on rotomolded PLA-natural fiber biocomposites, the main objective of this study is to determine the effect of chemical surface treatment of agave fibers with GMA-g-PLA to improve the fiber-matrix compatibility and to achieve better mechanical properties, especially at the higher fiber content. From the samples produced, a comparison with one of the most used rotomolded resins, linear medium density polyethylene (LMDPE), is made.…”

Section: Introductionmentioning

confidence: 99%

Fiber-matrix interface improvement via glycidyl methacrylate compatibilization for rotomolded poly(lactic acid)/agave fiber biocomposites

Robledo‐Ortíz

González‐López

Campo

et al. 2020

Journal of Composite Materials

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The growing interest in research and development of eco-friendlier materials makes attractive the use of bio-based and biodegradable polymers such as polylactic acid (PLA). However, the higher cost of PLA compared to conventional polymers limits its applications. Moreover, raw materials for rotational molding must be in a powder form, which further increases their cost. So, the main objective of this study was to use agave fibers to produce lower-cost PLA based rotomolded biocomposites (BC) without compromising its bio-sourced origin and to compare with a standard rotomolding resin: linear medium density polyethylene (LMDPE). To improve the fiber-matrix interface, a chemical surface treatment of the fibers with glycidyl methacrylate grafted polylactic acid (GMA-g-PLA) in solution was evaluated. The results showed that a better biocomposites’ morphology was obtained, especially with the fibers treated twice. The surface treatment was also shown to substantially improve the flexural and tensile properties of treated fiber biocomposites at higher fiber content (25% wt.) compared to those with untreated fiber. The surface treatment also led to a substantial reduction of the biocomposites porosity and water absorption. Overall, the samples were shown to have better mechanical properties than neat LMDPE while being eco-friendlier due to their bio-nature.

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Improving the Compatibility and Mechanical Properties of Natural Fibers/Green Polyethylene Biocomposites Produced by Rotational Molding

Cited by 53 publications

References 25 publications

Crystallinity and impact strength improvement of wood-polylactic acid biocomposites produced by rotational and compression molding

Crystallinity and impact strength improvement of wood-polylactic acid biocomposites produced by rotational and compression molding

Review of Hybrid Fiber Based Composites with Nano Particles—Material Properties and Applications

Fiber-matrix interface improvement via glycidyl methacrylate compatibilization for rotomolded poly(lactic acid)/agave fiber biocomposites

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