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Imidization of styrene-maleic anhydride copolymer for dispersing nano-SiO2 in water / Tao Xue in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)
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Titre : Imidization of styrene-maleic anhydride copolymer for dispersing nano-SiO2 in water Type de document : texte imprimé Auteurs : Tao Xue, Auteur ; Caili Yu, Auteur ; Zhongqun Zhou, Auteur ; Faai Zhang, Auteur Année de publication : 2023 Article en page(s) : p. 1867-1880 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Agents dispersants (chimie)
Analyse thermique
Caractérisation
Copolymère styrène-maléimide
Copolymères -- Synthèse
Dioxyde de silicium
Nanoparticules
Poids moléculaires
Solutions aqueuses (chimie)
ThermogravimétrieIndex. décimale : 667.9 Revêtements et enduits Résumé : Achieving functional styrene-maleic anhydride (SMA) copolymer dispersant is highly attractive but still remains a challenge. Conventional modified SMA dispersants have complex modification steps, poor performance, and limited applications. Thus, a series of styrene–maleimide (SMI) copolymers with different functionality as amphiphilic dispersants for dispersing nano-SiO2 in an aqueous solution were synthesized using a simple preparation process. The changes in the maleic anhydride groups during imidization were tracked using FTIR spectroscopy, 1H-NMR, and GPC. A rotational viscometer and an inverted bottle method were used to measure the viscosity and coagulation time of the nano-SiO2 aqueous dispersion system, respectively, after adding the SMI dispersants. The particle size, size distribution, and dispersant adsorption amount of the dispersion were analyzed using laser particle size analysis ; FTIR spectroscopy and SEM; and TGA, respectively. The results showed that the hydrogen bonds formed between the amino groups in the dispersant and the hydroxyl groups on the SiO2 surface during stirring allowed the dispersant to be adsorbed onto the SiO2 surface after being added to the nano-SiO2 aqueous system. The addition of the SMI dispersant enhanced the steric hindrance and electrostatic repulsion between the nanoparticles, thus making it possible for the SiO2 nanoparticles not to easily aggregate in water, improving their dispersity and stability. Additionally, the type and amount of SMI dispersant used significantly affected the SiO2 nanoparticles' ability to disperse in water. This makes SiO2 particles convenient to use and transport, not produce dust pollution, and easy to store. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of styrene–maleimide dispersants - Preparation of nano-SiO2 aqueous system - Characterization
- RESULTS AND DISCUSSION : Synthesis and characterization of the styrene-maleimide (SMI) copolymers - TGA analysis - DSC analysis - Dispersion of the nano-SiO2 aqueous system - Solubility of polymeric dispersant in different solvents
- Table 1 : Recipe and properties of SMI dispersant
- Table 2 : Molecular weight and PDI of SMA and SMI
- Table 3 : Solubility of polymers in different solventsDOI : https://doi.org/10.1007/s11998-023-00783-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00783-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40167
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 6 (11/2023) . - p. 1867-1880[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24337 - Périodique Bibliothèque principale Documentaires Disponible Impact-Resistant and Stiff at the Same Time / Simon Geier in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 7 (07/2011)
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Titre : Impact-Resistant and Stiff at the Same Time Type de document : texte imprimé Auteurs : Simon Geier, Auteur ; Christian Bonten, Auteur Année de publication : 2011 Article en page(s) : p. 75-77 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Charges (matériaux)
Copolymères séquencés
Nanoparticules
Polyamide 6
Polyéthers
Résistance au chocs
SilicatesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Polyamide 6 - Studies on a 3-material system consisting of a polyamide 6 matrix, a flexible phase based on a polyether block copolymer, and a nanofiller provide information on how to tailor stiffness/toughness properties to suit the intended purpose. In this way, the requirements of widely diverse applications can be precisely fulfilled. Note de contenu : - LEARNING FROM 2-MATERIAL SYSTEMS : Desired property rango for a multiphase PA6 composite material
- INCREASE IN TOUGHNESS : Atomic force micrograph of flexible phae dispersion within the PA6 matrix in the nm range
- STIFNESS INCREASED : Transmission electron micrograph showing the well coupled flexible phase in the PA6 blend - Change in the mechanical property value of PA6 as a function of flexible phase content
- IMPROVED TOUGHNES/STIFFNESS BALANCE : Transmission electron micrograph showing the homogeneous dispersion of the flexible phase and layer silicate platelets in the multiphase PA6 composite - Change in the mechanical property values of PA6 as a function of layer silicate contentPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14992
in KUNSTSTOFFE INTERNATIONAL > Vol. 101, N° 7 (07/2011) . - p. 75-77[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013214 - Périodique Bibliothèque principale Documentaires Disponible Impaction of thin films from polar solvent Si/SiOx nanoparticle inks / Sergei S. Bubenov in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 6 (11/2020)
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Titre : Impaction of thin films from polar solvent Si/SiOx nanoparticle inks Type de document : texte imprimé Auteurs : Sergei S. Bubenov, Auteur ; Sergey G. Dorofeev, Auteur ; Vadim M. Popelensky, Auteur ; Nikolay N. Kononov, Auteur ; Tatyana A. Kuznetsova, Auteur Année de publication : 2020 Article en page(s) : p. 1489-1495 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Couches minces
Encre
Nanoparticules
Oxyde de silicium
Projection dynamique par gaz froid
SiliciumIndex. décimale : 667.9 Revêtements et enduits Résumé : Impaction techniques have so far been efficiently used for formation of films from nanoparticles when coupled to synthetic process. However, this approach limits the choice of shapes and compositions of particles, so techniques of impaction of ready-made particles are desirable. To this end, the use of nanoparticle inks as a source of solid material is first described in this paper. The films are cast from dispersions of polar solvent-susceptible Si/SiOx nanoparticles. Water, ethanol, and acetonitrile are studied for solvents, and the latter two are shown to be suitable, as they possess lower surface tension and lower boiling points. Microscopically uniform films of nanoparticles are formed when aerosol and substrate are heated, with density of films approaching 40% of that of the bulk material. Higher stagnation pressure is beneficial for deposition, while further heating of the aerosol beyond the solvent evaporation can cause oligomerization of the solvent. Deposition of dense films in subsonic part of the jet appears possible with the technique. DOI : https://doi.org/10.1007/s11998-020-00368-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00368-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34954
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 6 (11/2020) . - p. 1489-1495[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22458 - Périodique Bibliothèque principale Documentaires Disponible Improved protective clothing for welders with nanoparticles / Léonie Kamps in TECHNICAL TEXTILES, Vol. 65, N° 4 (10/2022)
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Titre : Improved protective clothing for welders with nanoparticles Type de document : texte imprimé Auteurs : Léonie Kamps, Auteur ; Jochen S. Gutmann, Auteur ; Thomas Mayer-Gall, Auteur ; Torsten Textor, Auteur Année de publication : 2022 Article en page(s) : p. 218-219 Langues : Multilingue (mul) Catégories : Confort
Equipement de protection individuelle
Essais (technologie)
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Liants
Nanoparticules
Nanostructures
Projection de matériaux
Protection contre le rayonnement ultraviolet
Protection thermique
Vêtements de protection
Vêtements de travailIndex. décimale : 677 Textiles Résumé : Protective welding clothing must meet various requirements. Among other things, it must be flame-resistant, protect the welder against splashes of metal or sparks and also ensure protection against radiant heat and UV light caused by the exposure to the welding arc. The protection against molten metal splashes is directly related to the fabricweight per unit area of the protective welding clothing and the level of protection is normally determined by the numbers of molten metal droplets that fall on the fabric. The higher the weight per unit area, the greater the protection against welding spalter. However, increasing the fabric weight per unit area also leads to psychologically uncomfortable wearing and thus increasing the physical strain on the wearer. The required basis weight per unit area of protective welding clothing can be reduced by applying nanoparticles as a protective layer while preserving other indispensable properties. Note de contenu : - Fig. 1 : Nanostructured created on cotton and modarcyl fabrics using different binders and nanoparticles at different concentration of binder and different nanoparticle contents in the finishing solution
- Fig. 2 : Schematic representation of a drop of molten iron on fabrics with (right) and without nanostructured surface (left). In the case with nanostructured surface, it is clear that the contact area between the drop of iron (Fe) and the fabric is reduced, and that a thermally insulating air layer is created underneath (free area between the grey particles). In the case of fabrics without coating, the iron directly contacts the fiber and can thus transfer more heat while causing more damage to the material
- Fig. 3 : Results of different nanoparticle finishes in the metal droplet test. The red line indicates the requirement of 25 drops to pass welding protection Class 2 according to DIN EN ISO 11611
- Table : Summary of the results of the wearer comfort and metal drop testEn ligne : https://drive.google.com/file/d/1RRulExGXWofUQq789e8HUOIbwZsMPtYy/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38556
in TECHNICAL TEXTILES > Vol. 65, N° 4 (10/2022) . - p. 218-219[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23778 - Périodique Bibliothèque principale Documentaires Disponible Improved weatherability of outdoor wood stains using nanotechnology / Roger H. Cayton in COATINGS TECH, Vol. 7, N° 8 (08/2010)
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Titre : Improved weatherability of outdoor wood stains using nanotechnology Type de document : texte imprimé Auteurs : Roger H. Cayton ; Patrick G. Murray ; David Nelson ; Ryan Ostrowski Année de publication : 2010 Article en page(s) : p. 38-42 Langues : Américain (ame) Catégories : Bois -- Teinture
Dispersions et suspensions
Nanoparticules
Nanotechnologie
Oxyde de fer
Résistance aux conditions climatiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Commercial adoption of nanoparticulate metal oxides for UV protection in exterior coatings has not materialized as quickly as originally anticipated. In this article, the authors identify what they believe to be the primary barriers to technical and commercial success in this application, and have assembled a prescriptive three-stpe model that has led to commercial coatings products based on nanotechnology solutions. Note de contenu : - DISCUSSION : A PRESCRIPTIVE THREE-STEP MODEL FOR SUCCESS : Dispersion of particles - Compatibility of the dispersion - Optimal loading level Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18483
in COATINGS TECH > Vol. 7, N° 8 (08/2010) . - p. 38-42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012369 - Périodique Bibliothèque principale Documentaires Disponible Improvement effects of CaO nanoparticles on tribological and microhardness properties of PMMA coating / L. D. Aguilera-Camacho in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 2 (03/2015)
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PermalinkImprovement in corrosion resistance of WE43 magnesium alloy by the electrophoretic formation of a ZnO surface coating / J. E. Qu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 6 (11/2019)
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PermalinkImprovement in the light fastness of dyed meta-aramid fabric using titanium dioxide nanoparticles / Ravindra D. Kale in COLORATION TECHNOLOGY, Vol. 134, N° 6 (12/2018)
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PermalinkImprovement of adherence and anticorrosion properties of an epoxy-polyamide coating on steel by incorporation of an indole-3 butyric acid-modified nanomagnetite / Anh Truc Trinh in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 3 (05/2016)
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PermalinkImprovement of leather flame retardancy through nano clay addition / Samaneh Sepehri in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 11 (11/2020)
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PermalinkImprovement of the separation and antibiological fouling performance using layer-by-layer self-assembled nanofiltration membranes / Caihua Xiong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 3 (05-06/2020)
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PermalinkImproving anticorrosion performance of epoxy coating by hybrids of rGO and g-C3N4 nanosheets / Zhuang Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
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PermalinkPermalinkImproving the performance of GFRP using nanosilica / Sathis Kumar Selvarayan in JEC COMPOSITES MAGAZINE, N° 127 (03-04/2019)
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PermalinkIn-cosmetics : tendances confirmées / Françoise Basset in PARFUMS COSMETIQUES AROMES, N° 109 (01-02/93)
PermalinkIn situ preparation and properties of waterborne polyurethane/edge-isocyanated hexagonal boron nitride composite dispersions / Huixiang Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 1 (01/2021)
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PermalinkIn vitro bactericidal effect of ultrasonically sol–gel-coated novel CuO/TiO2/PEG/cotton nanocomposite for wound care / Arman Khani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 3 (05/2017)
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PermalinkIncessant and economical technique for in-situ preparation of metallic-nano on/in polyester fabric / Bharat H. Patel in CHEMICAL FIBERS INTERNATIONAL, Vol. 71, N° 1 (04/2021)
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PermalinkIncorporation of an acrylic fatty acid derivative as comonomer for oxidative cure in acrylic latex / Joana V. Barbosa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 5 (09/2014)
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PermalinkInfluence des conditions climatiques sur un capteur d'allongement souple, compatible textile / C. Cochrane in MATERIAUX & TECHNIQUES, Vol. 97, N° 1 (2009)
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PermalinkInfluence des nanoparticules incluses dans la matrice sur la réponse du composite soumis à un impact faible vitesse / Sébastien Denneulin in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 22, N° 1 (01-02-03-04/2012)
PermalinkInfluence of ammonium octamolybdate on flame retardancy and smoke suppression of PVC matrix flame retardant composites / Jianlin Xu in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 3 (2022)
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PermalinkInfluence of blending protocol on the thermal and mechanical properties of HDPE/LLDPE blend-based nanocomposites / Fabio R. Passador in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 4 (08/2016)
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PermalinkInfluence of carbon fillers on thermal properties and flammability of polymeric nanocomposites / Przemyslaw Rybinski in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 3 (07/2017)
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PermalinkInfluence of iron and nickel on the microwave absorption and other functional properties of nanographite-based nanocomposite paints / Anjali Prakash in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 6 (11/2021)
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