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A facile approach to superhydrophobic LiAl-layered double hydroxide film on Al-Li alloy substrate / You Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)
[article]
Titre : A facile approach to superhydrophobic LiAl-layered double hydroxide film on Al-Li alloy substrate Type de document : texte imprimé Auteurs : You Zhang, Auteur ; Jianhua Liu, Auteur ; Yingdong Li, Auteur ; Mei Yu, Auteur ; SongMei Li, Auteur ; Bing Xue, Auteur Année de publication : 2015 Article en page(s) : p. 595-601 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aluminium -- Alliages
Caractérisation
Couches minces
Hydrophobie
Hydroxydes doubles lamellaires
Spectroscopie de photoélectrons
Surfaces (technologie)Index. décimale : 667.9 Revêtements et enduits Résumé : A highly oriented LiAl-layered double hydroxide (LDH) film was first fabricated via a facile in situ growth method on Al–Li alloy. The morphology and structure of the LDH film were characterized using scanning electron microscopy, atomic force microscopy, X-ray diffraction, and transmission electron microscopy. After chemical modification with 1H,1H,2H,2H-Perfluorodecyltrimethoxysilane, the chemical compositions and states of surface-modified film were analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The results showed that the nest-like structure of LiAl-LDH film was composed of interconnected LiAl-LDH nanosheets, which oriented almost vertically to the substrate surface. After chemical modification, a superhydrophobic surface was obtained with water contact angle of 168°. The formation mechanism of the superhydrophobic film was also discussed. Note de contenu : - Materials
- Synthesis of LiAl-LDH film
- Preparation of superhydrophobic film
- CharacterizationDOI : 10.1007/s11998-015-9660-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9660-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24183
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 3 (05/2015) . - p. 595-601[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17244 - Périodique Bibliothèque principale Documentaires Disponible Facile fabrication of durable superamphiphobic PET fabrics / Xuan Zhou in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 3 (05-06/2020)
[article]
Titre : Facile fabrication of durable superamphiphobic PET fabrics Type de document : texte imprimé Auteurs : Xuan Zhou, Auteur ; Si Sun, Auteur ; Chuan Zhang, Auteur ; Xiao-Yu Wang, Auteur ; Yan-Li Li, Auteur ; Yong Jiang, Auteur Année de publication : 2020 Article en page(s) : p. 711–718 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Amphiphobie
Auto-nettoyage
Caractérisation
Durée de vie (Ingénierie)
Fibres textiles -- Propriétés chimiques
Fibres textiles -- Propriétés mécaniques
Hydrolyse
Polyéthylène téréphtalate
Revêtements organiques
Textiles et tissus synthétiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Superamphiphobic coatings/materials are important for a wide variety of applications, but the majority of these coatings/materials still suffer from poor durability. Therefore, multifunctional superamphiphobic coatings/materials with strong mechanical and chemical stability are highly desired. Herein, a simple and flexible approach to produce multifunctional superamphiphobic poly(ethylene terephthalate) (PET) textiles was reported. First, dual micro/nanostructures on the PET fabric surface are constructed by hydrolysis of trimethoxymethylsilane, N-octyltriethoxysilane, and trimethylchlorosilane, and further modified by 1H,1H,2H,2H-perfluorodecyltriethoxysilane and poly(vinylidene fluoride). The as-obtained superamphiphobic PET fabrics show high liquid repellency to water, oil, organic liquids, and strong acid or alkali solutions, exhibiting a water contact angle (WCA) of 161° and an oil contact angle (OCA) of 156°. Meanwhile, the superamphiphobic PET fabrics show strong abrasion resistance; even after 180-cm consistent abrasion, the WCA still maintains 148° and the OCA maintains 140°. Importantly, the fabrics maintain their excellent superamphiphobic property after long-term UV irradiation or ultrasonic treatment, respectively. Because the prepared fabrics have multifunctional features and are easy to fabricate with low cost, they show great potential for self-cleaning, antifouling, anti-icing, drug reduction, corrosion resistance, and protective uniforms. Note de contenu : - EXPERIMENTAL SECTION : Materials - Preparation of superamphiphobic solution - Dip coating for superamphiphobic fabrics - Characterization - Measurement of chemical and mechanical stability of the coatings
- RESULTS AND DISCUSSION : Characterization of the superamphiphobic PET fabrics - Surface wettability and self-cleaning performance of the modified fabrics - Durability of superamphiphobic coatings on fabric - UV-durable and chemical stable superamphiphobicityDOI : https://doi.org/10.1007/s11998-019-00289-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00289-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34101
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 3 (05-06/2020) . - p. 711–718[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21734 - Périodique Bibliothèque principale Documentaires Disponible Facile fabrication of durable superhydrophobic SiO2/polyacrylate composite coatings with low nanoparticle filling / Yanfen Huang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)
[article]
Titre : Facile fabrication of durable superhydrophobic SiO2/polyacrylate composite coatings with low nanoparticle filling Type de document : texte imprimé Auteurs : Yanfen Huang, Auteur ; Bin Chen, Auteur ; Zaosheng Lv, Auteur ; Fen Guo, Auteur Année de publication : 2020 Article en page(s) : p. 1289-1295 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Caractérisation
Copolymères -- Synthèse
Copolymères acrylates fluorés
Dioxyde de silicium
Fluoropolymères
Hydrophobie
Matériaux hybrides
Nanoparticules
Polyacrylates
Revêtement auto-nettoyant
Revêtements -- Propriétés mécaniques
Revêtements organiques
Stabilité thermiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : This study aimed to prepare superhydrophobic coatings that could be used for practical applications. Nanocomposites of polyacrylate containing silica nanoparticles were prepared by dispersing silica sol in a polyacrylate solution. Superhydrophobicity was attainable for nanocomposite coatings with a filler percentage of only 15 wt%. Reducing the loading of silica nanoparticles not only minimized the costs but also simplified the preparation. The superhydrophobic coatings with water contact angle as high as 155.4° and contact angle hysteresis of 5.6° exhibited good self-cleaning property. The superhydrophobic nanocomposite coatings also displayed good mechanical properties and excellent thermal stabilities that favor indoor and outdoor applications. The superhydrophobic nanocomposite coatings can be used on various substrate surfaces, including glass plates, polymethyl methacrylate plates, polycarbonate plates, and aluminum sheets. Given their large-scale and low-cost fabrication, superhydrophobic coatings show great promise in practical applications in a broad range of fields. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of fluorinated acrylate copolymers - Preparation of coatings - Characterization
- RESULTS AND DISCUSSION : Hydrophobicity of the coatings - Surface morphological features of as-prepared coatings - Thermal stability properties of as-prepared coatings - Mechanical properties of as-prepared coatingsDOI : https://doi.org/10.1007/s11998-020-00347-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00347-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34574
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 5 (09/2020) . - p. 1289-1295[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22303 - Périodique Bibliothèque principale Documentaires Disponible Facile preparation of anticorrosive and decorative multifunctional coatings via the inclusion of pearlescent oxide-covered mica pigments / Walaa M. Abd El-Gawad in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)
[article]
Titre : Facile preparation of anticorrosive and decorative multifunctional coatings via the inclusion of pearlescent oxide-covered mica pigments Type de document : texte imprimé Auteurs : Walaa M. Abd El-Gawad, Auteur ; Essam A. Mossalam, Auteur ; Mohamed M. Selim, Auteur Année de publication : 2023 Article en page(s) : p. 603-622 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Arrachement (matériaux)
Brillance (optique) -- Mesure
Caractérisation
Colorimétrie
Epoxydes
Evaluation
Formulation (Génie chimique)
Mica
Oxydes métalliques
Pigments nacrés
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements décoratifs
Revêtements décoratifs:Peinture décorative
Revêtements organiques
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : The keynote of this work was to prepare cost-saving intensely colored pearlescent pigments with anticorrosive properties via deposition of a low ratio of expensive mixed oxides on mica to be applied in decorative and anticorrosive multifunctional coatings. Herein, a mixture of CeO2 and Fe2O3 was precipitated on mica to prepare anticorrosive pigment with golden color, while brilliant intensive orange pigment was prepared via the deposition of ZrO2.Fe2O3 mix on mica. The prepared pearlescent pigments based on mica flakes covered with CeO2.Fe2O3 and ZrO2.Fe2O3 were characterized using scanning electron microscopy, energy-dispersive X-ray analysis, X-ray fluorescence, and thermal gravimetric analysis. The mixed oxide-covered mica pigments (Ce-Fe@M and Zr-Fe@M) were applied in two paint formulations in addition to one formulation containing mica for comparison. The color of the resulting coatings was investigated utilizing the CIELab technique. Additionally, the inhibitive properties of the coatings were determined using potentiodynamic anodic polarization, open circuit voltage, linear polarization resistivity, and electrochemical impedance spectroscopy techniques. The results declared that the color of the coating containing CeO2.Fe2O3@M is gold and that of ZrO2.Fe2O3/M is brilliant orange. Moreover, the results deduced that the resistance of coating containing Ce-Fe@M ranged between (5061–4887 Ω) and that containing Zr-Fe@M is from 6846 to 3290 Ω, while coating based on mica is the least. These results revealed that the present study has succeeded in offering both anticorrosive and decorative functions in a single-layered coat. Note de contenu : - EXPERIMENTAL : Materials - Characterization of the prepared pigments - Application in coatings - Methods of testing and evaluation of coating
- RESULTS AND DISCUSSION : Pigments characterization - FTIR - Coatings morphology - Corrosion results - Color and gloss measurements - Mechanical properties of the coatings - Pull-off strength results
- Table 1 : The paint formulations
- Table 2 : XRF analysis of mica, Ce-Fe@M, and Zr-Fe@M
- Table 3 : Corrosion resistance of the coatings containing mica, Ce-Fe@M, and Zr-Fe@M
- Table 4 : Electrochemical measurements results obtained from potentiodynamicanodic polarization and OCV technique
- Table 5 : EIS data of the coatings containing mica, Ce-Fe@M, and Zr-Fe@MTable 6 Color and gloss results of coatings containing mica, Ce-Fe@M, and Zr-Fe@MDOI : https://doi.org/10.1007/s11998-022-00693-z En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00693-z.pdf?pdf=button Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39306
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 603-622[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24056 - Périodique Bibliothèque principale Documentaires Disponible A facile preparation of a novel non-leaching antimicrobial waterborne polyurethane leather coating functionalized by quaternary phosphonium salt / Wang Chunhua in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)
[article]
Titre : A facile preparation of a novel non-leaching antimicrobial waterborne polyurethane leather coating functionalized by quaternary phosphonium salt Type de document : texte imprimé Auteurs : Wang Chunhua, Auteur ; Jianhui Wu, Auteur ; Changdao Mu, Auteur ; Wei Lin, Auteur Année de publication : 2020 Article en page(s) : 12 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Ammoniums quaternaires
Antibactériens
Caractérisation
Composés organiques -- Synthèse
Cuir
Essais (technologie)
Formulation (Génie chimique)
Polymères en émulsion
Polyuréthanes
RevêtementsIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : The aim of this research is to develop a novel non-leaching antimicrobial waterborne polyurethane (WPU) leather coating material with covalently attached quaternary phosphonium salt (QPS). The structure of the QPS-bearing WPU has been identified, and their thermal stability, mechanical property, and antimicrobial performance have been investigated. The results reveal that the incorporation of QPS slightly reduces the thermal stability of WPU material but would not affects its usability as leather coating. Despite the presence of hydrophobic benzene in QPS structure, the strong hydration of its cationic groups leads to the increased surface contact angle (SCA) and water absorption rate (WAR) of the films, suggesting that the water resistance of the films needs to be improved for the purpose of leather coatings. Antibacterial tests demonstrate that when the QPS content is 20 wt%, QPS-bearing WPU shows effective antimicrobial activity against bacteria. The WPU containing QPS prepared in this study is a non-leaching antimicrobial material and has great potential application as leather coating. Note de contenu : - Materials
- Synthesis of dihydroxy-terminated QPS (HQPS)
- Synthesis of QPS-bearing WPU
- Characterization methods
- Testing of antibacterial property
- Table 1 : Formulations and characteristics of WPU
DOI : 10.1186/s42825-019-0014-8 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-019-0014-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37138
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