Investigation of Alkaline Surface Treatment Effected on Flax Fibre Woven Fabric with Biodegradable Polymer Based on Mechanical Properties

Laziz, Aâ€TMliya Abdul; Mazlan, Norkhairunnisa; Yusoff, Mohd Zuhri Mohd; Ariff, Azmah Hanim Mohamed

doi:10.5614/j.eng.technol.sci.2020.52.5.6

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…Generally, improved mechanical properties have been reported in PLA/flax composites [20]. In a very similar study, Laziz et al [21] investigated the surface treatment of PLA/flax fiber. The authors reported better flexural strength, higher energy, and good surface properties.…”

Section: Introductionmentioning

confidence: 95%

Development of Polylactic Acid Films with Alkali- and Acetylation-Treated Flax and Hemp Fillers via Solution Casting Technique

Pokharel,

Falua,

Babaei-Ghazvini

et al. 2024

Polymers

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This study aims to enhance value addition to agricultural byproducts to produce composites by the solution casting technique. It is well known that PLA is moisture-sensitive and deforms at high temperatures, which limits its use in some applications. When blending with plant-based fibers, the weak point is the poor filler–matrix interface. For this reason, surface modification was carried out on hemp and flax fibers via acetylation and alkaline treatments. The fibers were milled to obtain two particle sizes of <75 µm and 149–210 µm and were blended with poly (lactic) acid at different loadings (0, 2.5%, 5%, 10%, 20%, and 30%) to form a composite film The films were characterized for their spectroscopy, physical, and mechanical properties. All the film specimens showed CO/OH groups and the π-π interaction in untreated flax fillers showed lignin phenolic rings in the films. It was noticed that the maximum degradation temperature occurred at 362.5 °C. The highest WVPs for untreated, alkali-treated, and acetylation-treated composites were 20 × 10−7 g.m/m2 Pa.s (PLA/hemp30), 7.0 × 10−7 g.m/m2 Pa.s (PLA/hemp30), and 22 × 10−7 g.m/m2 Pa.s (PLA/hemp30), respectively. Increasing the filler content caused an increase in the color difference of the composite film compared with that of the neat PLA. Alkali-treated PLA/flax composites showed significant improvement in their tensile strength, elongation at break, and Young’s modulus at a 2.5 or 5% filler loading. An increase in the filler loadings caused a significant increase in the moisture absorbed, whereas the water contact angle decreased with an increasing filler concentration. Flax- and hemp-induced PLA-based composite films with 5 wt.% loadings showed a more stable compromise in all the examined properties and are expected to provide unique industrial applications with satisfactory performance.

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Section: Introductionmentioning

confidence: 95%

Development of Polylactic Acid Films with Alkali- and Acetylation-Treated Flax and Hemp Fillers via Solution Casting Technique

Pokharel,

Falua,

Babaei-Ghazvini

et al. 2024

Polymers

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“…Though the modification caused reduction in the flexural modulus of composite, the flexural strength of composite could be improved. Laziz et al 24 used the treated and un-treated polylactic acid (PLA) to manufacture flax reinforced composites. The composite, which was produced with the wet PLA, indicated higher bending resistance than dry PLA composite.…”

Section: Introductionmentioning

confidence: 99%

Mechanical characterization and low-velocity impact behavior of flax woven fabric-reinforced polymer composites

Korkmaz

Karakuzu

Korkmaz

2022

Journal of Composite Materials

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Man–made fibers like carbon or glass are main components for fiber-reinforced polymer composites thanks to their high strength and stiffness values. However, man-made fibers are not eco-friendly and can hardly be recycled in the nature. Using a high amount of man-made fibers threatens our nature and poses a significant risk for the future of world. Natural fiber reinforced composite (NFRC) is considered as a good alternative for traditional composites. Therefore, NFRC has been examined to develop materials, which have comparable mechanical properties with the man-made fiber reinforced composites, for last decades. Although lots of studies were carried out on the mechanics of NFRC, a few of them focused on the structural design of reinforcement and their effects on composites performance. In this study, the number of weft densities of reinforcements were differentiated and their effects on the mechanical properties of composites were investigated. Fabrics were produced from flax yarns and composites were manufactured by vacuum assisted resin infusion molding method. The tensile, compression, shear and impact tests were carried out to characterize the manufactured composites. Results show that while increasing number of weft density of reinforcement improves the tensile and compressive strength of NFRC in the weft direction, the tensile strength and elastic modulus of composites in the warp direction were characterized by the crimp percentage values of warp yarns. Moreover, it was determined that the number of weft density in the reinforcement affect the contact force and energy absorption capacity of NFRC.

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“…Sodium silicate (commonly known as water glass),is a traditional stabilizer for ax ber bleaching, its structure is similar to that of a porous sponge, and it can absorb the Cu 2+ and Fe 3 + in the bleaching bath.Sodium silicate and magnesium ions form magnesium silicate, which rarely dissolves in water, and acts as a protective colloid. Under the in uence of temperature and time, the protective lm gradually decomposes, releasing HOO − in a linear rather than geometric order, so as to achieve mild bleaching(Fakin et al 2006;Laziz et al 2020). But it can form insoluble salt with Ca 2+ and Mg 2+ during the production, that is so called silica scale.…”

mentioning

confidence: 99%

Bleaching flax roving with poly(acrylic acid) magnesium salt as oxygen bleaching stabilizer for hydrogen peroxide

et al. 2021

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Investigation of Alkaline Surface Treatment Effected on Flax Fibre Woven Fabric with Biodegradable Polymer Based on Mechanical Properties

Cited by 5 publications

References 23 publications

Development of Polylactic Acid Films with Alkali- and Acetylation-Treated Flax and Hemp Fillers via Solution Casting Technique

Development of Polylactic Acid Films with Alkali- and Acetylation-Treated Flax and Hemp Fillers via Solution Casting Technique

Mechanical characterization and low-velocity impact behavior of flax woven fabric-reinforced polymer composites

Bleaching flax roving with poly(acrylic acid) magnesium salt as oxygen bleaching stabilizer for hydrogen peroxide

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