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Facile preparation and good performance of nano-Ag/metallocene polyethylene antibacterial coatings / Lin Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
[article]
Titre : Facile preparation and good performance of nano-Ag/metallocene polyethylene antibacterial coatings Type de document : texte imprimé Auteurs : Lin Li, Auteur ; Yunli Wang, Auteur ; Yingchun Zhu, Auteur Année de publication : 2018 Article en page(s) : p. 593-602 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antibactériens
Argent
Métallocènes
Nanoparticules
Polyéthylène
RevêtementsIndex. décimale : 667.9 Revêtements et enduits Résumé : Metallocene polyethylene/nano-silver coatings were prepared by a facile air-spray method on polymer films. Different from the prevailing strategy to endow polyethylene with antibacterial performance, we used metallocene polyethylene sol and nano-silver as a precursor to deposit coatings on polymers at a relatively low operating temperature. Antibacterial coatings with excellent mechanical properties, water resistance, and low silver release were achieved. The composite coatings were examined in terms of surface characteristics, mechanical properties, and antibacterial activity against two representative bacterial strains including Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). The composite coatings exhibited favorable microstructure, good mechanical properties, and suitable crystallinity. The antimicrobial tests indicated that the fabricated composite coatings showed promising antibacterial activity against E. coli and S. aureus. Furthermore, Ag ions released by the composite coating after 30 days were under 1.2 ppb. These results indicated a promising prospect of the composite coating for wide antibacterial applications. Note de contenu : - EXPERIMENTAL : Materials - Preparation of AgNPs/MPE composite coating - Characterization of AgNPs/MPE composite coating - Properties of AgNPs/MPE composite coating
- RESULTS AND DISCUSSION : Optimizing the composition of metallocene polyethylene coatings - Characterization of AgNPs/MPE composite coating - Properties of AgNPs/MPE composite coatingDOI : 10.1007/s11998-017-0019-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0019-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30755
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 3 (05/2018) . - p. 593-602[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20024 - Périodique Bibliothèque principale Documentaires Disponible Low-temperature dyeing of meta-aramid fabrics pretreated with 2-phenoxyethanol / Dan Sheng in COLORATION TECHNOLOGY, Vol. 133, N° 4 (08/2017)
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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 synthétiquesIndex. 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 parametersDOI : 10.1111/cote.12283 En ligne : https://drive.google.com/file/d/160xmjrbmkre8FwTq-Z4EjsOKGP65u2vo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28885
in COLORATION TECHNOLOGY > Vol. 133, N° 4 (08/2017) . - p. 320-324[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19175 - Périodique Bibliothèque principale Documentaires Disponible