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Micromechanics of Tensile Strength of Thermo-mechanical Pulp Reinforced Poly(lactic) Acid Biodegradable Composites

Journal of natural fibers, 2022-01, Vol.19 (15), p.9931-9944 [Peer Reviewed Journal]

2022 Taylor & Francis 2022 ;2022 Taylor & Francis ;ISSN: 1544-0478 ;EISSN: 1544-046X ;DOI: 10.1080/15440478.2021.1993419

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Title:
Micromechanics of Tensile Strength of Thermo-mechanical Pulp Reinforced Poly(lactic) Acid Biodegradable Composites
Author: Tarrés, Q. ; Melbø, J. Kvakland ; Delgado-Aguilar, M. ; Espinach, F.X. ; Mutjé, P. ; Chinga-Carrasco, G.
Subjects: Background noise ; Bio-based ; biobased: mechanical properties ; Biobased: mechanical property ; Biocomposite ; Biodegradability ; Biodegradable composites ; Biodegradation ; Biomedical materials ; Cellulose ; Composite materials ; current ; Environmental sounds ; Feasible alternatives ; Fiber reinforced polymers ; Fibers ; Glass fiber reinforced plastics ; Glass fibers ; Interfacial shear strength ; matrix ; Mechanical properties ; Micromechanics ; Mineral fibers ; Natural fiber biocomposite ; natural fiber biocomposites ; Natural fibers ; PLA ; Poly lactic acid ; Polylactic acid ; Polypropylene ; Polypropylenes ; Pulp ; Pulp materials ; Reinforced plastics ; Reinforcement ; Shear strength ; Sustainable development ; Tensile strength ; Wood products ; Wood pulp ; 天然纤维生物复合材料 ; 机械性能 ; 生物基
Is Part Of: Journal of natural fibers, 2022-01, Vol.19 (15), p.9931-9944
Description: Development of materials that are biobased and environmental sound is one of the goals within the current bioeconomy. This goal comes from an increasing conscientious society that pushes manufacturers and regulators toward a sustainable development. However, to be a feasible alternative, biobased materials should also match or outperform the mechanical performance of fossil-based materials. In this study, wood pulp fiber-reinforced polylactic acid (PLA) biocomposites were prepared, tested, and compared with glass fiber reinforced polypropylene. Pre-extrusion with a kinetic mixer and subsequent injection processing ensured correct dispersion of the reinforcement. The biocomposites showed mechanical properties in line with commercial materials, comparable to composites reinforced with 20% w/w of glass fiber. Micromechanics of PLA-based biocomposites showed the existence of strong interphase between the matrix and the pulp fibers. The interfacial shear strength was around 29 MPa and with a intrinsic tensile strength of the fibers 729 MPa. These materials offer a reliable alternative to oil-based matrices reinforced with mineral fibers.
Publisher: Abingdon: Taylor & Francis
Language: English
Identifier: ISSN: 1544-0478
EISSN: 1544-046X
DOI: 10.1080/15440478.2021.1993419
Source: DOAJ Directory of Open Access Journals

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Micromechanics of Tensile Strength of Thermo-mechanical Pulp Reinforced Poly(lactic) Acid Biodegradable Composites

2022 Taylor & Francis 2022 ;2022 Taylor & Francis ;ISSN: 1544-0478 ;EISSN: 1544-046X ;DOI: 10.1080/15440478.2021.1993419

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