Application of solvent dye in the field of biodiesel preservation / Ana Caroline Dias de Souza in COLORATION TECHNOLOGY, Vol. 133, N° 2 (04/2017)  

[article]  inCOLORATION TECHNOLOGY > Vol. 133, N° 2 (04/2017) . - p. 165-169 Titre : Application of solvent dye in the field of biodiesel preservation Type de document : texte imprimé Auteurs : Ana Caroline Dias de Souza, Auteur ; Marina Comin, Auteur ; Luiz Henrique de Oliveira, Auteur ; Cinthia Aparecida de Andrade Silva, Auteur ; Rozanna Marques Muzzi, Auteur ; Antonio Rogério Fiorucci, Auteur ; Anderson Rodrigues Lima Caires, Auteur ; Magno Aparecido Gonçalves Trindade, Auteur Année de publication : 2017 Article en page(s) : p. 165-169 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antioxydants Biocarburants -- Conservation Carburants diésel Colorants solvants Index. décimale : 667.2 Colorants et pigments Résumé : In this study, biodiesel (OSRB) from degummed oilseed radish oil (OSR) was obtained by transesterification, and the effect on its thermal stability of a binary compound containing a conventional antioxidant and a solvent dye was evaluated. A combination of the traditional antioxidant tert-butylhydroquinone (TBHQ) and a solvent dye, so-called CI Solvent Blue 35 (SB-35), was prepared and incorporated into OSR and OSRB prior to analysis. The acid value, peroxide value, and induction period were measured, and it was found that TBHQ and SB-35 were highly effective in stabilising OSR and OSRB when used in combination. The TBHQ/SB-35 blend had strong antioxidation activity, even at very low concentrations, when compared with the addition of the individual compounds. In summary, the results showed that a TBHQ/SB-35 blend may be successfully used as an alternative additive for improving oil and biodiesel preservation. Note de contenu : - MATERIALS AND METHODS : Instrumentation - Reagents, solutions, and biodiesel samples - Accelerated storage study - Procedure for stability studies by classical analytical titration - Determination of oxidative stability by the Rancimat method - RESULTS AND DISCUSSION : Physicochemical characterisation of OSR and OSRB - Stability of OSR and OSRB in the accelerated storage study - Determination of oxidation stability by Rancimat method DOI : 10.1111/cote.12263 En ligne : https://drive.google.com/file/d/1Ryk6jzuJQPTHZpDSBWwA6f2MldDVOeyS/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28230 [article]

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Non-aqueous dyeing of cotton fibre with reactive dyes : A review / Alan Y. L. Tang in COLORATION TECHNOLOGY, Vol. 136, N° 3 (06/2020)  

[article]  inCOLORATION TECHNOLOGY > Vol. 136, N° 3 (06/2020) . - p. 214-223 Titre : Non-aqueous dyeing of cotton fibre with reactive dyes : A review Type de document : texte imprimé Auteurs : Alan Y. L. Tang, Auteur ; Chi-Wai Kan, Auteur Année de publication : 2020 Article en page(s) : p. 214-223 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs Colorants solvants 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). Dispersions et suspensions Micelles solvants Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : This study reviews the evolution of and recent developments in non-aqueous reactive dyeing systems for cotton fibre. As conventional water-based reactive dyeing causes adverse effects to the environment because of the need for huge quantities of water and chemicals, as well as generating a substantial amount of effluents, one of the alternative ways to alleviate pressure on the environment is to switch the dyeing medium from an aqueous water-based approach to a non-aqueous solvent-assisted approach. Among a wide variety of non-aqueous dyeing methods, this review focuses on several non-aqueous dyeing systems, including dyeing textile fibres with chlorinated solvents, dyeing cotton with the use of reverse micellar systems, a dye/solvent suspension system and a non-nucleophilic solvent-assisted dyeing system. Note de contenu : - Early development of a solvent-assisted dyeing system of cotton fibre - Development of a reverse micellar dyeing system - Development of a dye solvent suspension system - Non-nucleophilic solvent-assisted dyeing system - Comparisons between different non-aqueous dyeing methods - Future research recommendations and directions DOI : https://doi.org/10.1111/cote.12459 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12459 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34294 [article]

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