Preparation of cationic fluorinated acrylate copolymer latex and its application on cotton fabric / Yicong Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 4 (07/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 4 (07/2020) . - p. 875-885 Titre : Preparation of cationic fluorinated acrylate copolymer latex and its application on cotton fabric Type de document : texte imprimé Auteurs : Yicong Chen, Auteur ; Fujin Fu, Auteur ; Guifang Yang, Auteur ; Yifan Liu, Auteur ; Yuancai Lv, Auteur ; Minghua Liu, Auteur Année de publication : 2020 Article en page(s) : p. 875-885 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère acrylate fluoré cationique Coton Le coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles). Fluoropolymères Hydrophobie Latex Polymérisation en émulsion Revêtements organiques Textiles et tissus Index. décimale : 667.9 Revêtements et enduits Résumé : Coupled with the improvement in people’s living standards, the demand for textiles having a special performance like water repellency is mushrooming. In this study, the cationic fluorinated acrylate copolymer latex particles with a core–shell structure were synthesized via semicontinuous seed emulsion polymerization process, using Span 80, Tween 80, and dodecyltrimethylammonium chloride as composite emulsifier and (2-(acryloyloxy)ethyl)trimethylammonium chloride as a cationic monomer. Cationic fluorinated acrylate copolymers were successfully confirmed through the FTIR, 1H NMR, and XPS analyses. In addition, the homogeneous latex particles (~ 132 nm of average size) with an evident core–shell structure were observed by TEM analysis, and a stable positive charge (48 ± 5 mV) on the surface of latex particles was demonstrated by zeta potential analysis. Meanwhile, the results showed that the dosage of dodecafluoroheptyl methacrylate (DFMA) played a vital role in the hydrophobicity of the latex films and the one with the best water repellency was identified with 10 g of DFMA dosage. Furthermore, the cotton fabric finishing experiments demonstrated that, after finishing by the cationic fluorinated acrylate copolymer emulsion, the treated cotton fabric exhibited excellent hydrophobicity even at low concentration, with > 130° of the water contact angle and > 60 min of the static absorbing time. Note de contenu : - EXPERIMENTAL SECTION : Materials - Preparation of core-phase and shell-phase preemulsion - Synthesis of cationic fluorinated acrylate copolymer emulsions - Fabric treatment - Characterizations - RESULTS AND DISCUSSION : Synthesis and characterization of CFE emulsions - XPS analysis of the CFA latex films - Hydrophobicity of the CFA latex films - Zeta potential and DLS of CFA emulsions - The molecular weight distribution of the CFA - Morphology of the latex particles and their films - Hydrophobicity of the finished cotton fabric - Surface morphology of the finished cotton fabric DOI : https://doi.org/10.1007/s11998-019-00306-2 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00306-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34377 [article]

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