Application of titanium metal oxide nanoparticles for leather coating / Sivaraj Sudhahar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVIII, N° 3 (03/2013)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVIII, N° 3 (03/2013) . - p. 108-114 Titre : Application of titanium metal oxide nanoparticles for leather coating Type de document : texte imprimé Auteurs : Sivaraj Sudhahar, Auteur ; Chandrasekaran Sivaraj, Auteur ; Sanjeev Gupta, Auteur Année de publication : 2013 Article en page(s) : p. 108-114 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion Cuirs et peaux -- Finition Cuirs et peaux -- Propriétés mécaniques Dioxyde de titane Flexion (mécanique) Nanoparticules -- Synthèse Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather finishing is a very important operation in leather manufacture. Various chemicals are used in leather finishing. The introduction of nanoparticles in leather finishing has revolutionized the leather industry. They are used to produce various types of leathers and to meet the end user requirements. The aim of the work was to coalesce the fields of leather technology and nanotechnology for obtaining superior quality of leather with improved performance. Synthesis of titanium metal oxide nanoparticles was done by sol-gel process and used in leather finishing mixture as coating ingredients. The physical and chemical properties of the synthesized metal oxide nanoparticles were characterized by TEM, FE-SEM, EDAX, FT-IR and XRD. The surface morphology of the nanoparticle coated leather was evaluated by AFM. The finished leather was assessed for its film adhesion to evaluate the strength of the bonding between the leather surfaces and finish coating. The conventional finish system experience finish adhesion issue in due course of time. The titanium metal oxide nanoparticles coated leather exhibited increased adhesion property. TiO2 nanoparticles increased the intermolecular linkages between the leather finish coating and the leather surface. Note de contenu : EXPERIMENTAL : - Materials - Synthesis of titanium metal oxide nanoparticles - Preparation of conventional base coat finish formulation, incorporating TiO2 nanoparticles, for shoe upper leather - Topcoat formulation RESULTS AND DISCUSSION : - Structural and morphological characterization of TiO2 nanoparticles : Wide angle-X-ray diffraction spectroscopy (XRD) analysis - Field emission scanning electron microscope imaging and energy dispersive analysis - EDAX peaks of nano TiO2 powders - Elemental composition analysis - Atomic force microscope image analysis of TiO2 nanoparticles coated leather sample - Determination of applied physical properties for TiO2 nanoparticles coated leather : Flexing endurance - Measurement of finish adhesion - Performance test result for the TiO2 nanoparticles coated leather - Subjective evaluation result for TiO2 nanoparticles coated leather En ligne : https://drive.google.com/file/d/1xDzBGkFHk6szR7eYW0Nq0hRMmibNUFpW/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17733 [article]

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Biogenic silver nanoparticle-coated low density polyethylene film with antibacterial and antioxidant properties / Sumi Maria Babu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 4 (07/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 4 (07/2024) . - p. 1409-1420 Titre : Biogenic silver nanoparticle-coated low density polyethylene film with antibacterial and antioxidant properties Type de document : texte imprimé Auteurs : Sumi Maria Babu, Auteur ; Leon Ittiachen, Auteur Année de publication : 2024 Article en page(s) : p. 1409-1420 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aliments -- Emballages -- Aspect sanitaire Antibactériens Antioxydants Argent Biosynthèse Caractérisation Matériaux hybrides Nanoparticules -- Synthèse Polyéthylène basse densité Index. décimale : 667.9 Revêtements et enduits Résumé : In the present study, silver nanoparticles were biosynthesized using banana (Musa spp.) peel extract as the reducing agent. The biosynthesized particles were then characterized using scanning electron microscopy, X-ray diffraction, transmission electron microscopy and Fourier transform infrared spectroscopy. Biosynthesized silver nanoparticles were then evaluated for their antibacterial activity against Gram-positive and Gram-negative cocci bacteria through agar diffusion study and minimum inhibitory concentration, and minimum bactericidal concentration was determined. Low density polyethylene film was coated with the biosynthesized silver nanoparticles following the dip coating method. The nanoparticle incorporated polymer films were then evaluated for antibacterial and antioxidant activity by agar diffusion studies, dynamic shake flask studies and 2, 2- diphenyl-1-picryl-hydrazyl-hydrate free radical scavenging assay, respectively. The surface characterization of the prepared films was also performed to ensure the presence of silver nanoparticle coating. Note de contenu : - MATERIALS AND METHODS : Processing of plant resource material - Preparation of aqueous banana peel extract - Biosynthesis of silver nanoparticles - UV-Visible spectrophotometer analysis - Characterization of biosynthesized silver nanoparticles - Antibacterial activity of biosynthesized silver nanoparticles solution - Preparation of silver nanoparticle-coated low density polyethylene (LDPE) film - Characterization of silver nanoparticle-coated LDPE film - Antibacterial activity of silver nanoparticle-coated LDPE film - RESULTS AND DISCUSSION : Characterization of biosynthesized silver nanoparticles - Antibacterial activity of biosynthesized silver nanoparticles - Preparation and characterization of silver nanoparticle-coated LDPE film - Antibacterial activity of silver nanoparticle-coated LDPE film - Antioxidant activity of silver nanoparticle-coated LDPE film DOI : https://doi.org/10.1007/s11998-023-00903-2 En ligne : https://drive.google.com/file/d/13VwXxrc5Eq_Di41KpQYztzkFjtasZEB8/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41307 [article]

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Collagen fiber membrane-derived chemically and mechanically durable superhydrophobic membrane for high-performance emulsion separation / Huifang Li in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 3 (Année 2021) . - 10 p. Titre : Collagen fiber membrane-derived chemically and mechanically durable superhydrophobic membrane for high-performance emulsion separation Type de document : texte imprimé Auteurs : Huifang Li, Auteur ; Wan Zheng, Auteur ; Hanzhong Xiao, Auteur ; Baicun Hao, Auteur ; Yujia Wang, Auteur ; Xin Huang, Auteur ; Bi Shi, Auteur Année de publication : 2021 Article en page(s) : 10 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Composés organométalliques Emulsions Fibrilles de collagène La fibrille de collagène est une structure constituée d'un assemblage de fibres de tropocollagène (assemblage de 3 protéines de collagène alpha (alpha 1 - alpha 1 - alpha 2) en une hélice droite. Hydrophobie Membranes (technologie) Nanoparticules -- Synthèse Polydiméthylsiloxane Le polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones. Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone. Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK). La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones. Séparation (technologie) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Developing high-performance separation membrane with good durability is a highly desired while challenging issue. Herein, we reported the successful fabrication of chemically and mechanically durable superhydrophobic membrane that was prepared by embedding UiO-66 as size-sieving sites within the supramolecular fiber structure of collagen fiber membrane (CFM), followed by the polydimethylsiloxane (PDMS) coating. The as-prepared CFM/UiO-66(12)/PDMS membrane featured capillary effect-enhanced separation flux and homogeneous porous channels guaranteed high separation efficiency. When utilized as double-layer separation membranes, this new type of composite membranes separated various surfactant stabilized water-in-oil microemulsions and nanoemulsions, with the separation efficiency high up to 99.993 % and the flux as high as 973.3 L m− 2 h− 1. Compared with commercial polytetrafluoro ethylene (PTFE) membrane, the advantage of the double-layer CFM/UiO-66(12)/PDMS membranes in separation flux was evident, which exhibited one order of magnitude higher than that of commercial PTFE membrane. The CFM/UiO-66(12)/PDMS membrane was acid-alkali tolerant, UV-aging resistant and reusable for emulsion separation. Notably, the CFM/UiO-66(12)/PDMS membrane was mechanically durable against strong mechanical abrasion, which was still capable of separating diverse water-in-oil emulsions after the abrasion with sandpaper and assembled as double-layer separation membranes. We anticipate that the combination of CFM and metal organic frameworks (MOFs) is an effective strategy for fabricating high-performance separation membrane with high mechanical and chemical durability. Note de contenu : - Materials - Synthesis of UiO-66 nanoparticles - Fabrication of the CFM/UiO-66(x)/PDMS membrane - Fabrication of the CFM/PDMS membrane - Preparation of water-in-oil emulsion - Emulsion separation of the CFM/UiO-66(x)/PDMS membrane - Chemical and mechanical durability - Characterization DOI : https://doi.org/10.1186/s42825-021-00060-5 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-021-00060-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37544 [article]

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Effects of starch addition on the characteristics of CoAl2O4 nano pigments / Leila Torkian in COLORATION TECHNOLOGY, Vol. 130, N° 5 (10/2014)  

[article]  inCOLORATION TECHNOLOGY > Vol. 130, N° 5 (10/2014) . - p. 376-379 Titre : Effects of starch addition on the characteristics of CoAl2O4 nano pigments Type de document : texte imprimé Auteurs : Leila Torkian, Auteur ; Elham Radmanesh, Auteur ; Maryam Daghighi, Auteur Année de publication : 2014 Article en page(s) : p. 376-379 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Amidons Bleu de cobalt Colorimétrie Matériaux nanocristallins Nanoparticules -- Synthèse Pigments inorganiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : Nanocrystalline cobalt aluminate spinel, CoAl2O4, was prepared via a microwave-assisted solution combustion process applying various mixtures of urea, glycine, and starch as a novel mixed fuel. The effects of starch addition (0, 10, 20, and 30 wt%) on the physical characteristics (e.g. crystallite size and colour) of the blue nano pigments were also investigated. The resultant powders were characterised by means of X-ray diffraction, scanning electron microscopy, electron dispersive X-ray analysis, and CIE L*a*b* colour measurements. The presence of a CoAl2O4 spinel lattice after calcination of precursors at 600 °C was confirmed by X-ray diffraction patterns, and the crystallite sizes were ca. 10–39 nm. Colorimetric data pointed to the formation of bright-blue pigments at low levels of starch addition. Scanning electron microscope images showed that starch enrichment reduced the agglomeration and size of synthesised nanoparticles. Note de contenu : - EXPERIMENTAL : 1. Powder synthesis - 2. Characterisation methods - RESULTS AND DISCUSSION : 1. X-ray diffraction analysis and CIE L*a*b colour measurements - 2. Scanning electron microscope characterisation and electron dispersive X-ray analysis DOI : 10.1111/cote.12103 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12103 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22077 [article]

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Fabrication of a nanosize pattern embedded plastic chip via an injection molding method for application to an optical biosensor / K. H. Kim in INTERNATIONAL POLYMER PROCESSING, Vol. XXV, N° 5 (11/2010)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXV, N° 5 (11/2010) . - p. 141-145 Titre : Fabrication of a nanosize pattern embedded plastic chip via an injection molding method for application to an optical biosensor Type de document : texte imprimé Auteurs : K. H. Kim, Auteur ; W. Kim, Auteur ; J. C. Hong, Auteur ; H. S. Ko, Auteur ; B. K. Kim, Auteur ; C. Huh, Auteur ; G. Y. Sung, Auteur Année de publication : 2010 Article en page(s) : p. 141-145 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Capteurs optiques Dépôt en phase vapeur Matières plastiques -- Moulage par injection Microscopie électronique à balayage Nanoparticules -- Synthèse Nitrure de silicium Polyméthacrylate de méthyle Le poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec. Technique des plasmas Index. décimale : 668.4 Plastiques, vinyles Résumé : We demonstrate a commercialized injection molding method for nano patterning of polymethyl methacrylate (PMMA) for the purpose of mass production of a label-free optical biosensor chip. Scanning electron microscope (SEM) images clearly show uniform nanopattern transfer on the plastic chip fabricated by an injection molding method. A uniformly deposited silicon nitride layer having a high refractive index by a plasma enhanced chemical vapor deposition (PECVD) technique is also observed. A unique characterization method is described wherein optical resonance reflection is used accurately and quickly to characterize the geometrical sensor structure. The authors anticipate that this robust method will provide an excellent means of producing an optical resonance reflection biosensor (ORRB). DOI : 10.3139/217.2357 En ligne : https://drive.google.com/file/d/1WPIuIYK9GL5qP0kHyOnV-J91AsnIQMjV/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10252 [article]

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Feasibility of a polybisphenol A epichlorohydrin (PBAE)/antimony-doped tin oxide polymer composite as an NIR absorption coating for outdoor applications / Ju Yong Sim in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)  

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Formulation des solides divisés / Léa Metlas-Komunjer / Les Ulis : EDP Sciences (2009)

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Fragrance encapsulation in chitosan particles / N. Marimon-Margarit in PERSONAL CARE EUROPE, Vol. 9, N° 2 (04/2016)  

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Green synthesis and characterization of silver nanoparticles/CM-chitosan-isopropanol by gamma irradiations method in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 23, N° 4 (08/2022)  

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Initiated chemical vapor deposition of poly(hexafluorobutyl acrylate) thin films for superhydrophobic surface modification of nanostructured textile surfaces / Büsra Simcek in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)  

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Inorganic nanoparticles : synthesis functionalization and their use in industrial applications / Giovanni Baldi in DOUBLE LIAISON, N° 561 (03/2008)

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Laccase-functionalized magnetic framework composite enabled chlorophenols degradation, a potential remediation for fungicides residues in leather / Min Cao in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 4 (Année 2022)  

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Morphology tuning of conducting polyaniline via static, liquid-liquid interfacial polymerization process and its application for optical pH sensing / S. M. Thorat in INTERNATIONAL POLYMER PROCESSING, Vol. XXX, N° 2 (05/2015)  

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Nanocomposites smart materials for great properties / Abhay D. Padhye in PAINTINDIA, Vol. LXV, N° 1 (01/2015)  

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Nanoparticulate inorganic UV absorbers : a review / Igor Fajzulin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 4 (07/2015)  

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Les nanoparticules d'or, un sujet pour les travaux d'initiative personnelle encadrés (TIPE) / Katia Fajerwerg in L'ACTUALITE CHIMIQUE, N° 335 (11/2009)  

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Polydopamine functional reduced graphene oxide for enhanced mechanical and electrical properties of waterborne polyurethane nanocomposites / Shengwen Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 6 (11/2018)  

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Possibility of synthesis of nanoporous silica using hide powder as a template / Satoru Dohshi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 95, N° 5 (09-10/2011)  

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Preparation, characterization and application of silica metal oxide nanoparticles for leather coating / Sivaraj Sudhahar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 7 (07/2012)  

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Preparation of active-passive anticorrosion antistatic epoxy nanocomposite coatings loaded with CeO2, CeO2@C, and CHS particles / Sara Sabzavar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 4 (07/2024)  

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