Synthesis and application of novel glucose derived nonionic gemini surfactant / Zhiwei Xu in COLORATION TECHNOLOGY, Vol. 138, N° 5 (10/2022)  

[article]  inCOLORATION TECHNOLOGY > Vol. 138, N° 5 (10/2022) . - p. 565-578 Titre : Synthesis and application of novel glucose derived nonionic gemini surfactant Type de document : texte imprimé Auteurs : Zhiwei Xu, Auteur ; Qianqian Cheng, Auteur ; Xiangdong Zhou, Auteur Année de publication : 2022 Article en page(s) : p. 565-578 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique Caractérisation Colorants dispersés Catégorie de colorants très peu solubles dans l'eau, utilisés à l'origine comme colorants pour l'acétate, et qui généralement sont appliqués sous forme de suspensions aqueuses de faible concentration.Les colorants dispersés sont largement utilisés dans la teinture de la plupart des fibres manufacturées, surtout le polyester. Fibres polyesters Mesure Surfactants -- Synthèse Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : A novel group of nonionic gemini surfactant (GTPEA) with ethylidene spacer structure was prepared from glucose-lactone, triethylenetetramine, alkyl epoxy polyether and acyl chloride of different alkyl chain lengths. The chemical structure of GTPEA were characterised by Fourier-transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). The thermal properties of the three surfactants were characterised by thermogravimetric analysis (TGA). The critical micelle concentrations (cmc values) of GTPEA with different hydrophobic chain lengths were measured using the Wilhelmy plate method (cmc: 1.58 × 10−5 to 5.01 × 10−6 mol/L). The solubilisation, emulsification and solubilisation performance tests showed the excellent surface properties of nonionic gemini surfactants. GTPEA-12 with a hydrophobic carbon chain length of 12 carbon atoms was selected to explore the dispersing performance of surfactants on disperse dyes and the levelling performance of polyester fibre disperse dyes. The test results have shown that the dispersion force was 96%, and the particle size of 0.1 g disperse dye was 196 nm in 100 ml of 4 g/L GTPEA-12 solutions. Finally, GTPEA-12 was used as a levelling agent in the dispersion dyeing of polyester fabrics. GTPEA-12 of 0.1 g/L can provide an excellent levelling effect of S(λ) = 0.026 for polyester and has little impact on the colour yield (K/S = 5.0) of polyester fabric. Note de contenu : - EXPERIMENTAL SECTION : Materials - Synthesis of nonionic gemini surfactant - Dyeing process of polyester fabric - Measurements - RESULTS AND DISCUSSION : Thermal analysis - Surface performance - Used in the dyeing of polyester disperse dyes - Table 1 : Surface active parameters of GTPEA - Table 2 : Maximum solubilisation volume and solubilisation power of different surfactants - Table 3 : The effect of K/S value and levelness S(λ) by levelling agent DOI : https://doi.org/10.1111/cote.12614 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12614 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38129 [article]

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