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Electrostatic self-assembly dyeing of cotton fabrics / Sule S. Ugur in COLORATION TECHNOLOGY, Vol. 127, N° 6 (2011)
[article]
Titre : Electrostatic self-assembly dyeing of cotton fabrics Type de document : texte imprimé Auteurs : Sule S. Ugur, Auteur ; Merih Sariisik, Auteur Année de publication : 2011 Article en page(s) : p. 372-375 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : 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).
Electrostatique
Teinture -- Fibres textilesTags : 'Teinture coton' 'Coton auto-assemblé' Cation 'chlorure époxypropyltriméthylammonium' électrostatique' 'Colorant réactif' acide' 'Polychlorure diallyldiméthylammonium' 'Stabilité lavage' lumière' frottement' Index. décimale : 667.3 Teinture et impression des tissus Résumé : A new approach to the dyeing of cotton fabrics using an electrostatic self-assembly method was evaluated. Cotton fabrics were pretreated with 2,3-epoxypropyltrimethylammonuium chloride and cationic charges were produced on the fabric surfaces. For the dyeing of cotton fabric, reactive and acid dyes were used. Oppositely charged anionic reactive/acid dyes and cationic poly(diallyldimethylammonium chloride) were alternately deposited on the surface of cationised cotton fabrics. Ten multilayer films of dye/poly(diallyldimethylammonium chloride) were deposited on the cotton fabric surfaces using a padder. The build-up of the multilayer films and the level of colour strength (K/S) achieved are discussed. Samples of cotton fabrics were also dyed with the same dyes, but using the exhaust method, and both types of dyed samples were compared. The washing, rubbing and light fastness properties were evaluated for the dyed fabrics. DOI : 10.1111/j.1478-4408.2011.00328.x Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12650
in COLORATION TECHNOLOGY > Vol. 127, N° 6 (2011) . - p. 372-375[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13476 - Périodique Bibliothèque principale Documentaires Disponible ESTRIM - a fast-demoulding injection technology for epoxy composites / Antonio Cossolo in JEC COMPOSITES MAGAZINE, N° 59 (08-09/2010)
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Titre : ESTRIM - a fast-demoulding injection technology for epoxy composites Type de document : texte imprimé Auteurs : Antonio Cossolo, Auteur Année de publication : 2010 Article en page(s) : p. 63-66 Langues : Anglais (eng) Tags : 'Condition mise en oeuvre' 'Equipement mis Démoulage 'Moulage injection réactif' Stratifié 'Fibre continue' 'Matériau renforcé fibre' 'Paroi mince' composite' Epoxy Index. décimale : 668.4 Plastiques, vinyles Résumé : The Cannon Group recently announced the development of ESTRIM - a fast-demoulding injection technology for epoxy resin-based composites for automotive and other mass-production markets. Lightweight thin-walled composite mouldings of complex shape and medium-to-large dimension made with epoxy resins and carbon or other continuous fibres can be produced a significantly reduced cycle times. A part-to-part cycle of 3 to 5 minutes - a demand from the automotive industry - can now be achieved. Note de contenu : - THE PROBLEM
- THE SOLUTION
- THE INNOVATIVE APPROACH : High pressure : how does it work ? - Dedicated preformers - Smart chemistry - Successful trialsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13789
in JEC COMPOSITES MAGAZINE > N° 59 (08-09/2010) . - p. 63-66[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012405 - Périodique Bibliothèque principale Documentaires Disponible PU coatings : From raw materials to end products / Arjun Sen in PAINTINDIA, Vol. XLVIII, N° 2 (02/1998)
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Titre : PU coatings : From raw materials to end products : Part 2 - Raw materials Type de document : texte imprimé Auteurs : Arjun Sen, Auteur Année de publication : 1998 Article en page(s) : p. VII-XIV Note générale : Bibliogr. Langues : Anglais (eng) Tags : Peinture Polyuréthane Isocyanates Polyols Diluants 'Hydrogène réactif' Index. décimale : 667.9 Revêtements et enduits Résumé : Part 1 of this article was published in the inaugural 'Polyurethane coatings' supplement of PAINTINDIA in September 1997 This part 2 of the article, which will discuss the main raw materials that find use in Polyurethane coatings. The Chemical Structures of all the raw materials are well documented and will not be repeated in this article. Readers are requested to refer to the many textbooks, journals and several publications available. Note de contenu : - ISOCYANATES : Toluene diisocyanate - Diphenylmethane diisocyanate (MDI) - 4,4 dicyclohexylmethane diisocyanate (H12MDI) - Isophorone diisocyanate (IPDI) - Hexamethylene diisocyanate (HDI) - Conversion products of polyisocyanates
- ISOCYANATES BLENDS
- REACTIVE HYDROGEN DONORS (POLYOLS) : Polyol molecular structure - Polyester polyols - Acrylic polyols - Polyether polyols - Polycaprolactone polyols - Oleochemical polyols
- DILUENTS
- SOLVENTS
- PIGMENTS AND FILLERS
- ADDITIVESPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13122
in PAINTINDIA > Vol. XLVIII, N° 2 (02/1998) . - p. VII-XIV[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006474 - Périodique Bibliothèque principale Documentaires Disponible Sucrose octaesters as reactive diluents for alkyd coatings / Andriy Popadyuk in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
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Titre : Sucrose octaesters as reactive diluents for alkyd coatings Type de document : texte imprimé Auteurs : Andriy Popadyuk, Auteur ; Austin Breuer, Auteur ; James Bahr, Auteur ; Ihor Tarnavchyk, Auteur ; Andriy Voronov, Auteur ; Bret J. Chisholm, Auteur Année de publication : 2018 Article en page(s) : p. 481-488 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Diluants
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Polyalkydes
RevêtementsTags : 'Diluant réactif' 'Revêtement alkyde' 'Sucrose polyester' de soja' 'Ester d'acide gras saccharose' 'Haute teneur en solides' Index. décimale : 667.9 Revêtements et enduits Résumé : Sucrose octasoyate (SS8) was investigated as a reactive diluent for a medium oil alkyd (MOA). SS8, which is derived from sugar and soybean oil, is 100% biobased, nontoxic, and biodegradable. As a result of its unique molecular architecture, it was expected that SS8 would be an excellent reactive diluent for alkyd coatings. The experiment conducted basically involved the incremental replacement of the MOA with SS8, while maintaining essentially equivalent solution viscosity. The properties of cured coatings were determined using industry standard methods. In general, it was found that SS8 could be used to reduce volatile organic compound content of the coatings, while also reducing drying time (i.e., tack-free time), increasing solvent resistance, and increasing impact resistance. Of the properties measured, the only cured film property that was negatively affected by the use of SS8 was the König pendulum hardness. However, the reduction in König pendulum hardness was only observed when the amount of MOA replaced by SS8 was greater than 10 wt%. Overall, these initial results suggest that SS8 is a very good reactive diluent for alkyd coatings. Note de contenu : - Fig. 1 : The chemical structure of a number of molecules that have been described in the literature as potential reactive diluents for alkyd coating
- Fig. 2 : representative chemical structure of an SS8 molecule. It should be understood that the chemical structure of the soy-based fatty acid ester molecules around a single sucrose core will vary and the distribution will depend on the fatty acid ester profile of the soybean oil used as a starting material
- Fig. 3 : Tack-free time as a function of SS8 content in the coating. Tack-free time was determined according to ASTM D1640
- Fig. 4 : Pendulum hardness as a function of SS8 content for the MOA/SS8 coatings
- Fig. 5 : The variation in solvent resistance with SS8 content for the MOA/SS8 coatings
- Fig. 6 : Direct impact resistance as a function of SS8 content for the MOA/SS8 coatings
- Fig. 7 : The variation in reverse impact resistance with SS8 content for the MOA/SS8 coatings
- Fig. 8 : relative comparison of the properties of coatings 90/10 MOA/SS8 and 75/25 MOA/SS8 to coating 100/0 MOA/ SS8. The spider chart shown in this figure was constructed such that the data point farthest from the center along any given axis is given a value of 1.0 and corresponds to the coating that had the most desired value for that property. For example, coating 75/25 MOA/SS8 exhibited the highest
solvent resistance, highest direct impact resistance, highest reverse impact resistance, lowest VOC content, and shortest drying time (i.e., tack-free time). As a result, a value of 1.0 was assigned to each of these properties for coating 75/25 MOA/SS8. However, for pendulum hardness, coating 100/0 MOA/SS8 exhibited the highest pendulum hardness, and, thus, a value of 1.0 was assigned to this coating on the hardness axis. The other two data points on each axis represent the magnitude of the property for the other two coatings as a fraction relative to the coating with the most desirable value for the property
- Table 1 : A description of the raw materials used for the study
- Table 2 : Compositions of the coating solutions produced
- Table 3 : The coating properties measured and the ASTM methods used to test them
- Table 4 : The solids and VOC content of the coating solutions produced and the biobased content of the cured films derived from the coating solutions
- Table 5 : Drying/curing characteristics of the coatings as determined using ASTM D1640DOI : 10.1007/s11998-017-0016-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0016-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30744
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 3 (05/2018) . - p. 481-488[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20024 - Périodique Bibliothèque principale Documentaires Disponible