Extraction and characterization of Alfa fibers and their use to produce Alfa/wool woven fabrics for composite reinforcement / Kawtar Lamhour in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 210-225 Titre : Extraction and characterization of Alfa fibers and their use to produce Alfa/wool woven fabrics for composite reinforcement Type de document : texte imprimé Auteurs : Kawtar Lamhour, Auteur ; Marwane Rouway, Auteur ; Ouahiba Mrajji, Auteur ; Abdeslam Tizliouine, Auteur ; Lhaj El Hachemi Omari, Auteur ; Hayat Salhi, Auteur ; Nabil Chakhchaoui, Auteur ; Omar Cherkaoui, Auteur ; Mohamed El Wazna, Auteur Année de publication : 2022 Article en page(s) : p. 210-225 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Composites à fibres naturelles Fibres d'alfa Fibres textiles -- Propriétés mécaniques Laine Tissés Traitement chimique Index. décimale : 668.4 Plastiques, vinyles Résumé : Because of their appealing properties, such as biodegradability, high basic stiffness, low density, and low cost, natural fibers have begun to be used in a variety of applications. In comparison to synthetics, they are also reusable. The aim of this work is to develop new woven materials made of wool and Alfa fibers (Stipa-tenacissima). The extraction of Alfa fibers was achieved via alkaline treatment. The chemical composition, mechanical and physical properties of the extracted fibers were determined. Wovens were produced using the weaving of taffetas technique. This study presents a chemical, physical, morphological and mechanical characterization of Alfa/wool yarns and fabrics. The results show that the fabric made of fibers treated with 2 mol concentration of NaOH presents the greatest morphological structure and a higher degree of crystallinity due to the reorganization of the molecular chains that results in a better orientation of the fibers compared to other concentrations. On the other hand, the results of the tensile test show that the Young’s modulus of the Alfa/Alfa woven fabric is 8 ± 1.157 MPa in the weft direction, compared to the Alfa/wool woven fabric which has 6.06 ± 0.196 MPa and wool/wool woven fabric with 14.10 ± 1.369 MPa. Note de contenu : - Materials and methods - Results and discussion : Mechanical properties of Alfa and wool yarns - Physical properties of woven materials - Mechanical properties of woven materials - Table 1 : Weights of the initial and extracted Alfa fibers and the yield of the extraction - Table 2 : Fibers diameters - Table 3 : Degree of crystallinity from XRD data - Table 4 : Water absorption coefficient of different natural fibers and of fiber and fabric samples produced in this work - Table 5 : Mechanical properties of Alfa and wool yarns - Table 6 : Composition of woven fabrics - Table 7 : Physical properties of woven fabrics. - Table 8 : Average results of mechanical properties of wovens in the weft direction - Table 9 : Comparison of mechanical properties for fabrics and yarns in the weft direction - Table 10 : Comparison of mechanical properties of yarns DOI : https://doi.org/10.1515/ipp-2022-4199 En ligne : https://drive.google.com/file/d/1NNIGeTq8aViWxlIVPaYLF1I07Mp2JrMB/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37626 [article]

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