Durable UV-protective cotton fabric by deposition of multilayer TiO2 nanoparticles films on the surface / Deshan Cheng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 3 (05/2018) . - p. 603-610 Titre : Durable UV-protective cotton fabric by deposition of multilayer TiO2 nanoparticles films on the surface Type de document : texte imprimé Auteurs : Deshan Cheng, Auteur ; Mantang He, Auteur ; Guangming Cai, Auteur ; Xin Wang, Auteur ; Jianhua Ran, Auteur ; Jihong Wu, Auteur Année de publication : 2018 Article en page(s) : p. 603-610 Note générale : Bibliogr. Langues : Américain (ame) 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). Couches minces multicouches Dioxyde de titane Fibres végétales -- Propriétés mécaniques Fourier, Spectroscopie infrarouge à transformée de Nanoparticules Potentiel zeta Protection contre le rayonnement ultraviolet Revêtements multicouches Spectrométrie à énergie dispersive Systèmes auto-assemblés Thermogravimétrie Index. décimale : 667.9 Revêtements et enduits Résumé : Abstract Durable ultraviolet (UV)-protective cotton fabric has great application potential in outdoor cotton clothing. In this study, oppositely charged TiO2 nanoparticles were deposited onto cotton fabric through the layer-by-layer self-assembly technique, resulting in multilayer films with UV-protective properties. The mechanism of the technology has been investigated through characterization of the structure and properties using different techniques including FTIR, UV–Vis spectroscopy, and a scanning electron microscope with an energy-dispersive X-ray spectrum. The results showed that TiO2 nanoparticles distributed uniformly on the surface of cotton fibers. The TGA results indicated that the TiO2 nanoparticles deposit on cotton fabrics had little effect on the thermal stability of cotton fabrics. The tensile strength and air permeability of the cotton samples were tested by a universal material testing machine and automatic ventilation instrument. The UV protection property of cotton fabric after assembled multilayer films was measured by an ultraviolet transmittance analyzer, and the laundering experiments were carried out to determine the durability of TiO2 nanoparticles on cotton fabric. The results showed that the UV protection property of cotton fabrics after assembled TiO2 nanoparticles was still maintained at a high level after five launderings. Note de contenu : - EXPERIMENTAL : Materials - Preparation of TiO2 nanoparticle suspension - Pretreatment of cotton fabrics - Multilayer assembly on cotton fabrics - Measurements and characterization - RESULTS AND DISCUSSION : FTIR analysis - Zeta potential measurement - UV-Vis spectroscopy - Surface morphology - EDX analysis - TG analysis - Mechanical properties - UV-protective property DOI : 10.1007/s11998-017-0021-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0021-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30756 [article]

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Low-temperature dyeing of meta-aramid fabrics pretreated with 2-phenoxyethanol / Dan Sheng in COLORATION TECHNOLOGY, Vol. 133, N° 4 (08/2017)  

[article]  inCOLORATION TECHNOLOGY > Vol. 133, N° 4 (08/2017) . - p. 320-324 Titre : Low-temperature dyeing of meta-aramid fabrics pretreated with 2-phenoxyethanol Type de document : texte imprimé Auteurs : Dan Sheng, Auteur ; Yunli Wang, Auteur ; Xin Wang, Auteur ; Xuefeng Lu, Auteur ; Jiang Shan, Auteur ; Heng Pan, Auteur ; Genyang Cao, Auteur ; Weilin Xu, Auteur Année de publication : 2017 Article en page(s) : p. 320-324 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique Basses températures Fibre aramide Fourier, Spectroscopie infrarouge à transformée de Phénoxyéthanol Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, meta-aramid fibres were pretreated with 2-phenoxyethanol under different conditions to investigate the effect of 2-phenoxyethanol on the dyeing of aramid at low temperature (95 °C). Structural alteration of the pretreated fibres was reflected by thermogravimetry and Fourier transform infrared spectroscopy, indicating more H-bonds, lower crystallinity, and slightly lower thermal stability. The change in structure showed that 2-phenoxyethanol combined with the fibre macromolecules and resulted in swelling of the fibre. Creation of a biphasic system through the addition of 2-phenoxyethanol to the dyeing solution resulted in the cationic dye being partitioned more towards the 2-phenoxyethanol-rich phase than the aqueous phase. The cross-sections of the dyed fibre suggested that the meta-aramid fibre could be dyed more thoroughly with an appropriate concentration of 2-phenoxyethanol. The colour value of aramid fabric was tested by varying the concentration of 2-phenoxyethanol and the temperature of pretreatment, indicating a dramatic improvement in dyeing performance to aramid after 2-phenoxyethanol pretreatment. 2-Phenoxyethanol pretreatment and low-temperature dyeing can overcome the problems of chemical and energy waste while producing a satisfying colour. Note de contenu : - EXPERIMENTAL : Materials - Preparation - Pretreatment - Dyeing - Measurements and characterisations - RESULTS AND DISCUSSION : Thermal analysis - FTIR analysis - Partitionning of dye in a 2-phenoxyethanol-water biphasic mixture - Dye diffusivity - Effect of experimental parameters DOI : 10.1111/cote.12283 En ligne : https://drive.google.com/file/d/160xmjrbmkre8FwTq-Z4EjsOKGP65u2vo/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28885 [article]

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A novel anti-condensation coating / Guiseng Wang in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 70, N° 883 (08/1998)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 70, N° 883 (08/1998) . - p. 55-59 Titre : A novel anti-condensation coating Type de document : texte imprimé Auteurs : Guiseng Wang, Auteur ; Daoyong Chen, Auteur ; Lude Lu, Auteur ; Xin Wang, Auteur Année de publication : 1998 Article en page(s) : p. 55-59 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bateaux -- Habitacles Bateaux -- Revêtements:Bateaux -- Peinture Champignons microscopiques Condensation Formulation (Génie chimique) Humidité -- Absorption Revêtements Rosée Index. décimale : 667.9 Revêtements et enduits Résumé : A novel anti-condensation ship coating is discussed, and equipment designed for evaluating the performance of the coating quantitatively is described. An isobutylene-anhydride based copolymer was synthesized and used as a water-absorbing resin instead ofa starch-based water-absorbing resin currently used in the coatings. Expanded perlite was used as the heat insulation material. The optimum formulation was determined to be titanium dioxide powder 5.1 g (8.26%); perlite 12 g (19.44%); zeolite 13 g (21.06%); water-absorbing resin 3 g (4.86%); tributyl-phosphate 0.3 g (0.49%); emulsifier OP-10 0.3 g (0.49%); and styrene-acrylate copolymer emulsion 28 g (45.38%). Note de contenu : - EXPERIMENTAL : Material - Synthesis of water-absorbing resin - Preparation of anti-condensation coating - Determination of anti-condensation properties - RESULTS AND DISCUSSION : Binder - Filler - Water-absorbing resin - Heat insulation material - Mold inhibitor - Effect of coating thickness - Optimization of the formulation Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18040 [article]

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Structural and dyeing properties of aramid treated with 2-phenoxyethanol / Genyang Cao in COLORATION TECHNOLOGY, Vol. 131, N° 5 (10/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 5 (10/2015) . - p. 384-388 Titre : Structural and dyeing properties of aramid treated with 2-phenoxyethanol Type de document : texte imprimé Auteurs : Genyang Cao, Auteur ; Dan Sheng, Auteur ; Weilin Xu, Auteur ; Xin Wang, Auteur Année de publication : 2015 Article en page(s) : p. 384-388 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse structurale (ingénierie) Fibre aramide Phénoxyéthanol Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, 2-phenoxyethanol was used as a carrier to realise the bright-colour dyeing of aramid fibre. Fourier transform infrared, X-ray diffraction, and thermal analyses were used to characterise the modification of 2-phenoxyethanol on the aramid fibre structure. The dyeing performance, including the K/S value and the dye uptake, was tested by varying the concentration of 2-phenoxyethanol and related experimental parameters. Structural analysis suggests strengthened H-bonds, lower crystallinity, and slightly lower thermal stability after 2-phenoxyethanol treatment, which can be explained by the swelling effect of 2-phenoxyethanol, enlarging the amorphous structure through the reassembly of hydroxyl bonding to the aramid fibre. The dyeing performance can be improved by increasing the dyeing time, the temperature, and the concentration of sodium nitrate under slightly acidic condition. Colour fastness tests showed that 2-phenoxyethanol treatment does not affect the rubbing fastness but lowers the wash fastness slightly. Dyeing of aramid is crucial under special environmental conditions in which the products must withstand a harsh environment while retaining a bright colour. Note de contenu : - EXPERIMENTAL : Materials - Dyeing - Measurements and characterisations - RESULTS AND DISCUSSIONS : Structural analysis - Dyeing performance DOI : 10.1111/cote.12165 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12165 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24666 [article]

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A study of spectral reflectance reconstruction using the weighted fitting algorithm based on the Sino Colour Book / Yuexin Liu in COLORATION TECHNOLOGY, Vol. 140, N° 1 (02/2024)  

[article]  inCOLORATION TECHNOLOGY > Vol. 140, N° 1 (02/2024) . - p. 61-74 Titre : A study of spectral reflectance reconstruction using the weighted fitting algorithm based on the Sino Colour Book Type de document : texte imprimé Auteurs : Yuexin Liu, Auteur ; Juan Li, Auteur ; Xin Wang, Auteur ; Xuetong Li, Auteur ; Yang Song, Auteur ; Rong Li, Auteur Année de publication : 2024 Article en page(s) : p. 61-74 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Algorithmes Couleur -- Analyse Spectroscopie de réflectance Index. décimale : 535.6 Couleur Résumé : The spectral reflectance of a colour is its most essential characteristic, and it does not change with changes of equipment or light source. Therefore, the reconstruction of spectral reflectance from parameters such as colour tristimulus value and RGB has attracted the attention of researchers. To avoid the occurrence of metamerism in the colour reproduction process and to achieve the purpose of colour spectral reproduction, the spectral reflectance and the optimal parameters of the reconstruction using the weighted fitting method were discussed experimentally with the colour data measured from the Sino Colour Book as the research object. The results show that the best results are obtained when the weighted fitting parameters are weighted by the third power and eight colour samples are involved in the fitting. The reconstructed spectral reflectance obtained by the weighted fitting method has little variation and high overlap with the actual spectral reflectance obtained at each hue and lightness, thus meets the requirements of practical applications. Note de contenu : - EXPERIMENTAL : Experimental samples: the Sino Colour Book - THEORY : Weighted fitting algorithm - The relationship between spectral reflectance and colour tristimulus values - EVALUATION METHODS : Colour difference - Spectral angle θ - Spectral index k - RMSE of the spectrum - Spectral similarity - Reconstruction pass rate - RESULTS AND DISCUSSION : Influence of the weighted fitting parameters m and n on the reconstruction effectiveness - Spectral reflectance reconstruction effect evaluation - Table 1 : Influence of the weighting power - Table 2 : Influence of colour sample numbers involved in fitting DOI : https://doi.org/10.1111/cote.12691 En ligne : https://drive.google.com/file/d/19OMlDxhoKtj6F2XGerdCwXlHALBvlN9B/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40391 [article]

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The dyeing of nylon with a microencapsulated disperse dye / Ji Jun-Ling in COLORATION TECHNOLOGY, Vol. 123, N° 5 (2007)  

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