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Synergistic effect of Ag and ZnO nanoparticles on polyaniline incorporated epoxy/2pack coatings for splash zone applications / Mohammad Asif Alam in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
[article]
Titre : Synergistic effect of Ag and ZnO nanoparticles on polyaniline incorporated epoxy/2pack coatings for splash zone applications Type de document : texte imprimé Auteurs : Mohammad Asif Alam, Auteur ; Ubair Abdus Samad, Auteur ; El-Sayed M. sherif, Auteur ; Asiful Seikh, Auteur ; Saeed M. Al-Zahrani, Auteur ; Nabeel H. Alharthi, Auteur ; Manawwar Alam, Auteur Année de publication : 2019 Article en page(s) : p. 835-845 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Argent
Epoxydes
Essai de dureté
Nanoindentation
Oxyde de zinc
Résistance à l'abrasion
Revêtements -- Propriétés mécaniques
Revêtements bi-composant:Peinture bi-composant
Revêtements organiques
Surfaces (Physique)Index. décimale : 667.9 Revêtements et enduits Résumé : In this work, epoxy/2pack coatings containing polyaniline (PANI) in combination with Ag and ZnO nanoparticles have been synthesized. The nanoparticles were incorporated with bisphenol-A diglycidyl ether epoxy resin and polyamino-amide. The mechanical properties of the fabricated coatings, such as the pendulum hardness, scratch resistance, and impact strength, were studied. The composition of the fabricated coatings was confirmed by attenuated total reflectance infrared spectroscopy measurements. The thermal degradation and indentations were characterized through the use of differential scanning calorimetry and nano-indentation techniques, respectively. The surface morphology of the fabricated coatings was characterized using field-emission scanning electron microscopy. The synergistic effects of the Ag and ZnO nanoparticles on the corrosion resistance of the coatings after different exposure periods in 3.5% NaCl solutions were determined by electrochemical impedance spectroscopy. All the results were consistent with one another and confirmed that the addition of Ag and ZnO nanoparticles improved the mechanical properties of the coatings. This effect also led to a notable increase in the corrosion resistance of the PANI coatings. Note de contenu : - ATR-IR measurement
- FE-SEM investigations
- Nano-indentation analysis
- Electrochemical impedance spectroscopy (EIS)DOI : 10.1007/s11998-018-00156-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00156-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32595
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 3 (05/2019) . - p. 835-845[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20953 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and application of silver nanoparticles as biocidal agent in polyurethane coating / M. Bechtold in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 3 (05-06/2020)
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Titre : Synthesis and application of silver nanoparticles as biocidal agent in polyurethane coating Type de document : texte imprimé Auteurs : M. Bechtold, Auteur ; A. Valério, Auteur ; Antônio Augusto Ulson de Souza, Auteur ; D. de Oliveira, Auteur ; C. V. Franco, Auteur ; R. Serafim, Auteur ; S. M. A. Guelli U. Souza, Auteur Année de publication : 2020 Article en page(s) : p. 613–620 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Argent
Caractérisation
Essais de résilience
Nanoparticules
Polyuréthanes
Rayonnement ultraviolet B
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : Nanostructured materials have become increasingly widespread, and in recent decades, the processing industries have shown a great interest in coating materials with antibacterial properties. In this research, the biocidal effect of silver nanoparticles in the water-soluble polyurethane paint composition was evaluated. Silver nanoparticles in the aqueous phase were prepared by chemical reduction at 500 ppm using polyvinyl alcohol. The material was characterized by UV–Vis, inductively coupled plasma mass spectrometry, dynamic light scattering, zeta potential, and transmission electron microscopy. The effect of silver nanoparticles in terms of yellowing and gloss variation was evaluated by a UV-B radiation test. Silver nanoparticles had no effect on the gloss and yellowing paint film. In addition, positive results were obtained for the protection and resistance against bacteria but not satisfactory resistance against fungi. Note de contenu : - MATERIALS AND METHODS : Synthesis and characterization of silver nanoparticles (AgNPs) - Polyurethane paint preparation - UV-B radiation test - Microbial content - In-can preservation - Fungal resistance - Bacterial resistance
- RESULTS AND DISCUSSION : Synthesis and characterization of AgNPs - UV-B radiation test - Microbial contentDOI : https://doi.org/10.1007/s11998-019-00297-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00297-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34093
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 3 (05-06/2020) . - p. 613–620[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21734 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of silver nanoparticles embedded novel hyperbranched urethane alkyd-based nanocomposite for high solid antimicrobial coating application / D. Ratna in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 6 (11/2015)
[article]
Titre : Synthesis of silver nanoparticles embedded novel hyperbranched urethane alkyd-based nanocomposite for high solid antimicrobial coating application Type de document : texte imprimé Auteurs : D. Ratna, Auteur ; R. Baloji Naik, Auteur Année de publication : 2015 Article en page(s) : p. 1073-1083 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Argent
Copolymère Alkyde uréthane
Microscopie électronique
Nanoparticules
Polymères ramifiés
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : In this study, we describe a simple method for the synthesis of a novel nanocomposite comprising hyperbranched urethane alkyd and silver nanoparticle (embedded in the resin) for a high-solid antimicrobial coating application. During the process, silver benzoate was dispersed in the hyperbranched alkyd (HBA) resin containing free hydroxyl groups and the resin is cured with an isocyanate trimer (Desmodur N3390) to make a silver nanoparticle-based nanocomposite coating. Silver benzoate is reduced by the free radicals, generated from naturally occurring oxidative curing of the fatty acid present in the alkyd resin. Unlike a conventional method, which involves the use of a toxic reducing agent or solvent, the present process does not require any toxic reducing agent for the generation of silver nanoparticles. The formation of silver nanoparticle was confirmed by spectroscopic and electron microscopic analysis. The HBA resin used in this work requires a much lesser amount of solvent for making a coating formulation and offers superior mechanical properties compared to the conventional alkyds. The surfaces coated with the nanocomposite coating showed excellent antimicrobial activity against Serratia marcescens bacteria. Note de contenu : - EXPERIMENTAL : Materials - Preparation of silver nanocomposites
- CHARACTERIZATION : UV Visible spectroscopy - Atomic force microscopy (AFM) - Scanning electron microscopy (SEM) - Transmission electron miscroscopy (TEM) - Thermal analysis - Mechanical properties - Testing of antimicrobial activity - Accelerated weathering test
- RESULTS AND DISCUSSION : Formation of SNP - UV-Visible spectroscopy - Microscopic analysis - Thermal analysis - Mechanical properties - Testing of antimicrobial activity - Accelerated weathering testDOI : 10.1007/s11998-015-9702-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9702-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24959
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Code-barres Cote Support Localisation Section Disponibilité 17585 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of waterborne polyurethane–silver nanoparticle antibacterial coating for synthetic leather / Xiaohui Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 2 (03/2018)
[article]
Titre : Synthesis of waterborne polyurethane–silver nanoparticle antibacterial coating for synthetic leather Type de document : texte imprimé Auteurs : Xiaohui Zhang, Auteur ; Wei Wang, Auteur ; Dan Yu, Auteur Année de publication : 2018 Article en page(s) : p. 415-423 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Argent
Charges (matériaux)
Cuir synthétique
Nanoparticules
Nanoparticules -- Synthèse
Polymères en émulsion
Polyuréthanes
Revêtements en phase aqueuse
Tests d'efficacitéIndex. décimale : 667.9 Revêtements et enduits Résumé : An antibacterial coating composed of silver nanoparticles and waterborne polyurethane was synthesized for use on synthetic leather. In this study, silver nanoparticles were prepared and used as nanofiller to impart antibacterial property. Silver nanoparticles were synthesized by using poly(vinyl pyrrolidone) as dispersant and sodium borohydride (NaBH4) as reducing agent. Silver nanoparticles were characterized by transmission electron microscopy (TEM), Fourier-transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) analysis. The optimum dispersant was selected according to the zeta potential of dispersions. Waterborne polyurethane was synthesized by using isophorone diisocyanate, 2-bis(hydroxymethyl)propionic acid, triethylamine, and polytetramethylene ether glycol. Waterborne polyurethane–silver antibacterial coating was obtained by ultrasonic dispersion, and then cast on the surface of synthetic leather. The antibacterial property and coating adhesion were investigated. The results showed silver nanoparticles homogeneously dispersed in waterborne polyurethane and adhesion reaching grade 4. Antibacterial testing showed bacterial reduction of 99.99% for Escherichia coli and 87.5% for Staphylococcus aureus. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of silver nanoparticles - Preparation of waterborne polyurethane - Preparation of waterborne polyurethane–silver antibacterial coating - Characterization
- RESULTS AND DISCUSSION : Synthesis and characterization of silver nanoparticles - Effect of amount of silver nanoparticles on particle size and stabilization effect of waterborne polyurethane - Morphology - Adhesion results - Antibacterial testingDOI : 10.1007/s11998-017-9997-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9997-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30300
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Code-barres Cote Support Localisation Section Disponibilité 19742 - Périodique Bibliothèque principale Documentaires Disponible The prospects for antiviral coatings / Peter Collins in SURFACE COATINGS INTERNATIONAL, Vol. 103.3 (05-06/2020)
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Titre : The prospects for antiviral coatings Type de document : texte imprimé Auteurs : Peter Collins, Auteur ; Richard Kennedy, Auteur Année de publication : 2020 Article en page(s) : p. 122-127 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens
Argent
Cuivre
Dioxyde de titane
Nanoparticules
Nanotubes
Oxyde de graphène
Photocatalyse
Revêtements antiviraux
Revêtements hygiéniquesIndex. décimale : 667.9 Revêtements et enduits Résumé : The current COVID-19 pandemic has had a dramatic effect on societies worldwide. Within a matter of weeks, normal day-to-day life changed to something more akin to a horror film as many nations introduced draconian measures in order to reduce the spread of the virus and prevent the numbers of patients requiring hospital treatment overwhelming their intensive care facilities. In light of the perceived high infectivity of the virus, members of the Royal Society of Chemistry's Surface Coatings Special Interest Group, in collaboration with the British Coatings Federation, organised a virtual gathering of more than 130 academics, industry specialists and representatives of healthcare and transport organisations to share knowledge about antiviral coatings and express views on what needs to be done to accelerate research output in this field. One of the aims of the meeting was to review hygienic coatings technology' and its prospects for fighting viruses. Note de contenu : - Use of surfactants
- Copper and silver
- Photocatalytic titanium dioxide nanoparticles
- Coatings that regenerte an active agent
- Graphene oxide and carbon nanotubes
- The challengesEn ligne : https://drive.google.com/file/d/13Xmw0syAVpYxNzLo85a-CPjw9OLoqTSo/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34339
in SURFACE COATINGS INTERNATIONAL > Vol. 103.3 (05-06/2020) . - p. 122-127[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21880 - Périodique Bibliothèque principale Documentaires Disponible Two tales of coatings : myth and reality of powder coatings with silver metallics / Arun K. Chattopadhyay in PAINTINDIA, Vol. LXIII, N° 4 (04/2013)
PermalinkUniform silver nanoparticles coating using dual regime spray deposition system for superhydrophilic and antifogging applications / Maxym V. Rukosuyev in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 2 (03/2017)
PermalinkX-Static in L'INDUSTRIE TEXTILE, N° 1337 (12/2001)
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