Enhancing hydrophilicity of bioscoured flax fabric by emulsification post-treatment

Abdel-Halim, E.S.; Konczewicz, W.; Zimniewska, Małgorzata; Al‐Deyab, Salem S.; El‐Newehy, Mohamed H.

doi:10.1016/j.carbpol.2010.04.065

Cited by 29 publications

(8 citation statements)

References 28 publications

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“…These results were as expected due to the abundance of hydroxyl groups in the cellulose structure of flax fabrics. Moreover, the fabrics pretreatment before the experiments led to a removal of several impurities, including lignin, fat, and waxes contributing to the hydrophilic character of the flax surface [46].…”

Section: Resultsmentioning

confidence: 99%

Multifunctional Flax Fibres Based on the Combined Effect of Silver and Zinc Oxide (Ag/ZnO) Nanostructures

Costa

Ferreira

et al. 2018

Nanomaterials

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Cellulosic fibre-based smart materials exhibiting multiple capabilities are getting tremendous attention due to their wide application areas. In this work, multifunctional flax fabrics with piezoresistive response were developed through the combined functionalization with silver (Ag) and zinc oxide (ZnO) nanoparticles (NPs). Biodegradable polyethylene glycol (PEG) was used to produce AgNPs, whereas ZnONPs were synthetized via a simple and low-cost method. Flax fabrics with and without NPs were characterized by Ground State Diffuse Reflectance (GSDR), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Spectroscopy (EDS), X-ray Diffraction (XRD), Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR), and Thermogravimetric analysis (TGA). After creating a conductive surface by flax functionalization with AgNPs, ZnONPs were synthetized onto these fabrics. The developed fibrous systems exhibited piezoresistive response and the sensor sensitivity increased with the use of higher ZnO precursor concentrations (0.4 M). Functionalized fabrics exhibited excellent antibacterial activity against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria, higher hydrophobicity (WCA changed from 00 to >1000), UV radiation resistance, and wash durability. Overall, this work provides new insights regarding the bifunctionalization of flax fabrics with Ag/ZnO nanostructures and brings new findings about the combined effect of both NPs for the development of piezoresistive textile sensors with multifunctional properties.

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Section: Resultsmentioning

confidence: 99%

Multifunctional Flax Fibres Based on the Combined Effect of Silver and Zinc Oxide (Ag/ZnO) Nanostructures

Costa

Ferreira

et al. 2018

Nanomaterials

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“…1d) showed the optimal efficiency after a treatment period of 60 min at 50 C and 50 rpm (data not shown). Ossola and Galante (2004) performed the enzymatic scouring of flax fibers at 55 C for 30 min, at a material to liquor ratio of 1:10 (w/v) in the presence of a surfactant (1 g/l) and mild chelator (2 g/l) while Abdel-Halim et al (2010) have done the enzymatic scouring of flax fabric for 2 h at 60 C using a material to liquor ratio of 1:20 (w/v) in the presence of a surfactant (0.1%). Csiszar et al (2004) scoured linen fabric with pectinase at pH 5.0 (50 mM acetate buffer) for 1 h at 50 C, 40 rpm and material to liquor ratio of 1:50 (w/v) in the presence of nonionic surfactant (1 ml/l).…”

Section: Resultsmentioning

confidence: 99%

Cost-effective scouring of flax fibers using cellulase-free xylano-pectinolytic synergism from a bacterial isolate

Kaur

Singh

Patra³

et al. 2016

Journal of Cleaner Production

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“…The differences between the surface morphology of neat and modified flax yarns using the Peclyve solution at 5 wt % for 6 h are reported in Figure 2. One of the main effects observed after the enzymatic treatment was the removal of a substantial part of the impurities present on the untreated fibres-such as fat and waxes-that bind the flax bundles together, ensuring good mechanical properties of the yarn [36]. The FE-SEM micrographs reported in Figure 3 show the morphologies of the flax yarns after the different enzymatic treatments.…”

Section: Characterization Of Flax Yarns After Enzymatic Treatmentmentioning

confidence: 99%

Surface Modification of Flax Yarns by Enzymatic Treatment and Their Interfacial Adhesion with Thermoset Matrices

et al. 2020

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The aim of this study was to assess the effects of commercially available and relatively inexpensive enzyme preparations based on endo 1,4-β-xylanase, pectinase and xyloglucanase on the thermal (TGA), morphological (SEM), chemical (FT-IR) and mechanical (single yarn tensile tests) properties of flax yarns. The preparation based on pectinase and xyloglucanase provided the best results, resulting in the effective removal of hydrophilic components such as hemicellulose and pectin, the individualization of yarns and increased thermal stability at the expense of a reduction in mechanical properties, depending on the treatment parameters. Single yarn fragmentation tests pointed out an improved interfacial adhesion after enzymatic treatment, with reduced debonding length values of 18% for an epoxy matrix and up to 36% for a vinylester resin compared to untreated flax yarns.

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Enhancing hydrophilicity of bioscoured flax fabric by emulsification post-treatment

Cited by 29 publications

References 28 publications

Multifunctional Flax Fibres Based on the Combined Effect of Silver and Zinc Oxide (Ag/ZnO) Nanostructures

Multifunctional Flax Fibres Based on the Combined Effect of Silver and Zinc Oxide (Ag/ZnO) Nanostructures

Cost-effective scouring of flax fibers using cellulase-free xylano-pectinolytic synergism from a bacterial isolate

Surface Modification of Flax Yarns by Enzymatic Treatment and Their Interfacial Adhesion with Thermoset Matrices

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