Starch-Based Biopolymer Reinforced with High Yield Fibers from Sugarcane Bagasse as a Technical and Environmentally Friendly Alternative to High Density Polyethylene

Jiménez, Ana; Espinach, Francesc X.; Delgado-Aguilar, Marc; Reixach, Rafel; Quintana, Germán; Palmer, Pere Fullana; Pujol, Pere Mutjé

doi:10.15376/biores.11.4.9856-9868

Cited by 14 publications

(13 citation statements)

References 35 publications

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“…A possible measure of the quality of the interphase is the evaluation of the net contribution of the reinforcements to the tensile strength and the Young’s modulus of the composite. The literature shows that this contribution is considerably impacted by the nature of the matrix [50,51]. Similar contributions were obtained for the same reinforcement used with different polyolefin like PP or high density polyethylene (HDPE), but when this reinforcement was used with another polymer chemical family, the contributions changed drastically [43,51].…”

Section: Resultsmentioning

confidence: 69%

Bleached Kraft Eucalyptus Fibers as Reinforcement of Poly(Lactic Acid) for the Development of High-Performance Biocomposites

et al. 2018

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Poly(lactic acid) (PLA) is one of the most well-known biopolymers. PLA is bio-based, biocompatible, biodegradable, and easy to produce. This polymer has been used to create natural fiber reinforced composites. However, to produce high-performance and presumably biodegradable composites, the interphase between PLA and natural fibers still requires further study. As such, we aimed to produce PLA-based composites reinforced with a commercial bleached kraft eucalyptus pulp. To become a real alternative, fully biodegradable composites must have similar properties to commercial materials. The results found in this research support the competence of wood fiber reinforced PLA composites to replace other glass fiber reinforced polypropylene composites from a tensile property point of view. Furthermore, the micromechanics analysis showed that obtaining strong interphases between the PLA and the reinforcement is possible without using any coupling agent. This work shows the ability of totally bio-based composites that fulfill the principles of green chemistry to replace composites based on polyolefin and high contents of glass fiber. To the best knowledge of the authors, previous studies obtaining such properties or lower ones involved the use of reagents or the modification of the fiber surfaces.

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Section: Resultsmentioning

confidence: 69%

Bleached Kraft Eucalyptus Fibers as Reinforcement of Poly(Lactic Acid) for the Development of High-Performance Biocomposites

et al. 2018

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“…This value is in the range 280 and 618 MPa, being computed for SGW-reinforced PP composites [58]. The literature shows a relation between the chemical nature of the matrix and the intrinsic tensile strength of the reinforcements [90]. The intrinsic tensile strength of a reinforcement that was obtained by using micromechanics is related with the exploitation of the strengthening abilities of the fibers instead of its tensile properties as single fibers.…”

Section: Micromechanal Analysis Of the Interface Of The Nanocompositesmentioning

confidence: 99%

Research on the Strengthening Advantages on Using Cellulose Nanofibers as Polyvinyl Alcohol Reinforcement

et al. 2020

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The present work aims to combine the unique properties of cellulose nanofibers (CNF) with polyvinyl alcohol (PVA) to obtain high-performance nanocomposites. CNF were obtained by means of TEMPO-mediated ((2,2,6,6-Tetramethylpiperidin-1-yl)oxyl) oxidation, incorporated into the PVA matrix by means of compounding in a single-screw co-rotating internal mixer and then processed by means of injection molding. It was found that CNF were able to improve the tensile strength of PVA in 85% when 4.50 wt % of CNF were added. In addition, the incorporation of a 2.25 wt % of CNF enhanced the tensile strength to the same level that when 40 wt % of microsized fibers (stone groundwood pulp, SGW) were incorporated, which indicated that CNF possessed significantly higher intrinsic mechanical properties than microsized fibers. SGW was selected as reference for microsized fibers due to their extended use in wood plastic composites. Finally, a micromechanical analysis was performed, obtaining coupling factors near to 0.2, indicating good interphase between CNF and PVA. Overall, it was found that the use of CNF is clearly advantageous to the use of common cellulosic fibers if superior mechanical properties are desired, but there are still some limitations that are related to processing that restrict the reinforcement content at low contents.

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“…The mean orientation angles were 28.05º ± 0.871 and 39.4º ± 1.191, for the rectangular and triangular distribution, respectively. If the value is compared with orientation angle obtained from the micromechanical analysis of the tensile strength (41.9º), the most similar orientation belongs to the triangular distribution hypothesis (Jimenez et al 2004;Jiménez et al 2016a).…”

Section: Micromechanical Analysis Of the Young's Modulusmentioning

confidence: 99%

Sugarcane Bagasse Reinforced Composites: Studies on the Young’s Modulus and Macro and Micro-Mechanics

et al. 2017

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The stiffness of a material greatly influences its possible use as an engineering material. Thus, despite the theoretical environmental advantages of natural fiber reinforced composites, or fully biodegradable composites, if certain mechanical properties are not achieved, a material can have fewer engineering uses. In this work, sugarcane bagasse fibers, a by-product of the sugarcane-juice extraction process, were used to obtain reinforcing fibers. Two polyolefins, a polypropylene and a highdensity polyethylene, and a starch-based polymer were used as matrices. The composite materials were prepared and tested to obtain their tensile properties such as the Young's moduli. Some micromechanical models were used to obtain the intrinsic Young's moduli of the fibers and the efficiency factors. The dependence of such parameters on the matrix and fibers characteristics was studied. The fiber orientation efficiency factor was used to compute the orientation angle of the fibers inside the composite under three different distributions. Finally, the Tsai and Pagano models, and the Halpin and Tsai equations were used to compute the theoretical values of the Young's moduli of the composites.

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Starch-Based Biopolymer Reinforced with High Yield Fibers from Sugarcane Bagasse as a Technical and Environmentally Friendly Alternative to High Density Polyethylene

Cited by 14 publications

References 35 publications

Bleached Kraft Eucalyptus Fibers as Reinforcement of Poly(Lactic Acid) for the Development of High-Performance Biocomposites

Bleached Kraft Eucalyptus Fibers as Reinforcement of Poly(Lactic Acid) for the Development of High-Performance Biocomposites

Research on the Strengthening Advantages on Using Cellulose Nanofibers as Polyvinyl Alcohol Reinforcement

Sugarcane Bagasse Reinforced Composites: Studies on the Young’s Modulus and Macro and Micro-Mechanics

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