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Preparation and characterization of nano-reinforced leather waste fiber-epoxy nano composite / Venkatasubramanian Sivakumar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 12 (12/2015)
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Titre : Preparation and characterization of nano-reinforced leather waste fiber-epoxy nano composite Type de document : texte imprimé Auteurs : Venkatasubramanian Sivakumar, Auteur ; T. R. Swathi, Auteur ; Resmi Mohan, Auteur ; Asit Baran Mandal, Auteur Année de publication : 2015 Article en page(s) : p. 401-408 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Composites à fibres
Cuirs et peaux -- Déchets -- Recyclage
Dioxyde de titane
Epoxydes
Fibres animales
Nanoparticules
Résistance chimique
solvants
Stabilité thermiqueIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Significant quantities of leather waste fibers are generated from the leather industry. Confinement and utilization of leather waste fibers by converting them in to useful materials such as nano-composites is desirable. Earlier studies on making composites from leather waste fibers suffer from strength properties for different applications. In this paper, preparation and characterization of nano composite from leather fiber–epoxy polymer reinforced with nano TiO2 has been studied and reported for the first time. Physical testing of these nano composites shows better strength and other properties for improved performance as versatile material. TGA and DSC studies revealed better thermal stability (up to 330°C) for these nano composites. FTIR analysis shows possible chemical interaction between epoxy polymer and leather fiber. Better solvent resistant property was also noticed for the nano-composites prepared. SEM analysis indicates uniform nano-composite structure and distribution of nano TiO2 in the matrix. The present approach not only offers a solution to the disposal problem regarding leather solid wastes like buffing dusts, but also offers a versatile nano composite material. Note de contenu : - INTRODUCTION : Nano-composites using leather waste fibers - Literature survey on composites from leather wastes - Drawbacks of earlier processes/products - Objectives of the present work
- EXPERIMENTAL : Materials - Preparation of nano-composite from buffing dust - Testing of nano-composites from buffing dust - Scanning electron microscopic (SEM) analysis
- RESULTS AND DISCUSSIONS : Nano-composite utilizing leather waste fiber and epoxy - Hardness test - Tensile strength - Thermogravimetric analysis (TGA) - Differential scanning calorimetry (DSC) - Fourier Transform Infrared Spectroscopy (FT-IR) - Chemical resistance test - Scanning electron microscopic (SEM) analysisEn ligne : https://drive.google.com/file/d/1GY7pvH70zUbI01gMsveF5Zny_FPRn_BJ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25050
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CX, N° 12 (12/2015) . - p. 401-408[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17652 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of poly(MMA-BA)/nano-ATO hybrid latex via miniemulsion polymerization / Gui-Jun Zhang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 4 (07/2011)
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Titre : Preparation and characterization of poly(MMA-BA)/nano-ATO hybrid latex via miniemulsion polymerization Type de document : texte imprimé Auteurs : Gui-Jun Zhang, Auteur ; Zhong-Hua Chen, Auteur ; Xing-rong Zeng, Auteur ; Fei Yu, Auteur ; Jin Wang, Auteur Année de publication : 2011 Article en page(s) : p. 505-511 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acrylate de butyle
Antimoine
Caractérisation
Dioxyde d'étain
Encapsulation
Miniémulsions
Nanoparticules
Polymérisation en émulsion
Polyméthacrylate de méthyleLe 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.Index. décimale : 667.9 Revêtements et enduits Résumé : Abstract The poly(methyl methacrylate--n-butyl acrylate)/nano-antimony-doped tin oxide (ATO) hybrid latices were prepared successfully via miniemulsion polymerization in the presence of emulsifier sodium dodecyl sulfate (SDS) and costabilizer hexadecane (HD). Several factors affecting the encapsulation efficiency of nano-ATO were studied. The prepared hybrid latices were characterized using transmission electron microscopy, dynamic light scattering particle size analysis, thermogravimetric analysis, and ultraviolet--visiblenear infrared (NIR) spectra. The results show that the encapsulation efficiency of nano-ATO reaches the maximum value of 78.0% with 3 wt% of nano-ATO, 4 wt% of SDS, and 4 wt% of HD, and the mean diameter of hybrid latex particles is 87.5 nm. Both the weight loss ratio and the transmittance in NIR region of hybrid film decrease with the increasing nano-ATO amount. The prepared hybrid film containing nano-ATO exhibits excellent ability for shielding IR light with high transmittance in visible region, which can be used as transparent a heat-insulating coating for energy savings. Note de contenu : EXPERIMENTAL : Materials - Preparation of poly(MMA-BA)/nano-ATO hybrid latex - Preparation of polymer films - Characterization
RESULTS AND DISCUSSION : The encapsulation efficiency - Morphology and size of poly(MMA-BA)/ano-ATO hybrid latex particles - TG analysis - UV-Vis-NIR spectra of poly(MMA-BA)/nano-ATO hybrid filmsDOI : 10.1007/s11998-010-9318-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9318-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12144
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 4 (07/2011) . - p. 505-511[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 013158 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of polyacrylate composite and its application in superhydrophobic coating based on silicone-modified ZnO / Changpo Ma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 2 (03/2021)
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Titre : Preparation and characterization of polyacrylate composite and its application in superhydrophobic coating based on silicone-modified ZnO Type de document : texte imprimé Auteurs : Changpo Ma, Auteur ; Yongzan Li, Auteur ; Jian Zhang, Auteur ; Feng Ning, Auteur ; Minxia Kang, Auteur ; Hui Li, Auteur ; Zumin Qiu, Auteur Année de publication : 2021 Article en page(s) : p. 415-433 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Emulsions
Hydrophobie
Nanoparticules
Oxyde de zinc
Polyacrylates
Revêtements organiques
Rugosité
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
ThermogravimétrieIndex. décimale : 667.9 Revêtements et enduits Résumé : In this paper, a kind of silicone containing double bond and hydrogen bond has been synthesized via telomerization. In order to disperse and incorporate ZnO into the polymer matrix, ZnO was modified with silicone. Finally, ZnO/polyacrylate and silicone/polyacrylate composites were prepared using modified ZnO and silicone. The present study reports synthesis and characterization of ZnO/polyacrylate and silicone/polyacrylate nanocomposites by in situ emulsion polymerization. The effects of ZnO and silicone on the morphological structure and thermal properties of composites were systematically studied. The composites were characterized using FTIR, XRD, SEM, TEM, TGA, particle size analysis, UV, and WCA. It could be seen that the thermal degradation temperature of the composites increased significantly with the addition of ZnO and silicone. SEM analysis showed that the films were evenly distributed with the surface-modified ZnO nanoparticles. Then, the modified ZnO/polyacrylate superhydrophobic composite coating was prepared using modified ZnO and silicone/polyacrylate emulsion. The coating has excellent self-cleaning and oil–water separation properties. Note de contenu : - EXPERIMENTAL : Materials - Preparation of a silicone containing double bond and hydrosilane bond - Preparation of silicone-modified ZnO nanoparticles - Preparation of ZnO/polyacrylate nanocomposite emulsion - Preparation of silicone/polyacrylate nanocomposite emulsion - Preparation of modified ZnO/polyacrylate superhydrophobic composite coating - Characterization
- RESULTS AND DISCUSSION : FTIR analysis - XRD analysis - SEM analysis - TEM analysis - TG analysis - Particle size distribution - UV resistance - Water contact angle and water absorption
- APPLICATION OF MODIFIED ZNO/POLYACRYLATE SUPERHYDROPHOBIC COMPOSITE COATING : The microstructure of the coating - Stability of superhydrophobic coating - Application of superhydrophobic coating
- Scheme 1 : Preparation of a silicone containing double bond and hydrosilane bond
- Scheme 2 : Preparation of silicone-modified ZnO nanoparticles
- Scheme 3 : Preparation of ZnO/polyacrylate nanocomposite emulsion
- Scheme 4 : Preparation process of superhydrophobic coating
- Table 1 : General recipe for preparation of ZnO/polyacrylate nanocomposite emulsion
- Table 2 : General recipe for preparation of silicone/polyacrylate nanocomposite emulsion
- Table 3 : Thermogravimetric parameters of polyacrylate
- Table 4 : The GPC of polyacrylate
- Table 5 : Roughness parameters of samplesDOI : https://doi.org/10.1007/s11998-020-00411-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00411-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35604
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 2 (03/2021) . - p. 415-433[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22701 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of polymer/zirconia nanocomposite antistatic coatings on plastic substrates / Chao-Ching Chang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 1 (01/2013)
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Titre : Preparation and characterization of polymer/zirconia nanocomposite antistatic coatings on plastic substrates Type de document : texte imprimé Auteurs : Chao-Ching Chang, Auteur ; Feng-His Hwang, Auteur ; Chin-Yuan Hsieh, Auteur ; Ching-Chung Chen, Auteur ; Liao-Ping Cheng, Auteur Année de publication : 2013 Article en page(s) : p. 73-78 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antistatiques
Caractérisation
Dureté (matériaux)
Nanoparticules
Polyacrylates
Polyméthacrylate de méthyleLe 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.
Réticulation (polymérisation)
Surfaces (technologie)
ZirconeLe dioxyde de zirconium ou oxyde de zirconium(IV) couramment appelée zircone est un composé inorganique du zirconium de formule ZrO2. Ce matériau est une céramique technique d'aspect opaque. Appelé CZ (Cubic Zirconia) lorsque transparent, il est utilisé pour imiter le diamant. Il ne faut pas le confondre avec le zircon (ZrSiO4). Sous sa forme tétragonale, l'oxyde de zirconium est un matériau a vocation mécanique, cette évolution cristallographique lui confère une dureté très élevée (1200Hv) ainsi qu'une bonne résistance aux sollicitations mécaniques (700Mpa en traction et 2000Mpa en compression). Une fois polie, la zircone tétragonale peut atteindre un Ra de 0,02, ce qui permet de l'utiliser pour des pièces de frottement.Index. décimale : 667.9 Revêtements et enduits Résumé : Zirconia nanoparticles synthesized by the sol–gel method were surface modified by the coupling agent, 3-(trimethoxy silyl) propyl methacrylate (MSMA), containing C=C bonds. These particles were then UV-cured together with the hexa-functional monomer, dipentaethritol hexaacrylate (DPHA), to prepare transparent coatings that exhibited antistatic property on plastic substrates. FTIR and solid 29SiNMR were used to analyze the chemical bonds in the formed particles and coatings. Dynamic light scattering measurement of the modified ZrO2 sol indicated a relatively small particle size distribution, 1.5–20 nm, with a maximum intensity at ~5.5 nm. These particles dispersed uniformly in the organic host, poly(DPHA), as was manifested by the high resolution SEM images of the coatings. Antistatic performance of the coatings was examined based on the surface resistivity measurements. A resistivity of 7.74 × 108 ?/? suited to common antistatic applications could be attained for coatings containing 10% inorganic component. In addition, all of the prepared coatings were very hard with pencil hardness 7H–8H, and they attached perfectly to the PMMA substrate according to the peel test. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of ZrO2 sols - Synthesis of antistatic coatings - Characterization
- RESULTS AND DISCUSSION : Analysis of chemical structure by FTIR and 29Si-NMR - Particle size and particle size distribution - Adhesion, hardness, and antistatic testsDOI : 10.1007/s11998-012-9427-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9427-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17474
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 1 (01/2013) . - p. 73-78[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14636 - Périodique Bibliothèque principale Documentaires Disponible 15124 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of polyurethane/polysulfide miscible blend nanocomposites / P. K. Guchhait in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 4 (08/2012)
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Titre : Preparation and characterization of polyurethane/polysulfide miscible blend nanocomposites : Effect of nanoclay reinforcement on morphology, mechanical and thermal properties Type de document : texte imprimé Auteurs : P. K. Guchhait, Auteur ; M. Rahaman, Auteur ; L. Nayak, Auteur ; T. K. Chaki, Auteur Année de publication : 2012 Article en page(s) : p. 461-468 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères -- propriétés mécaniques
Analyse thermique
Argile
Caractérisation
Charges (matériaux)
Dispersions et suspensions
Elastomères
Fourier, Spectroscopie infrarouge à transformée de
Isocyanates
Matériaux hybrides
Microscopie électronique en transmission
Nanoparticules
Polysulfures
Polyuréthanes
Thermogravimétrie
ThiophèneLe thiophène est un composé organique hétérocyclique aromatique de la classe des métalloles. C'est un liquide limpide incolore ayant une odeur qui rappelle celle du benzène. Le thiophène est souvent trouvé naturellement dans le pétrole à des concentrations de quelques pourcents.
Le thiophène est un des composés utilisés pour dénaturer l'alcool.
La réaction de polymérisation du thiophène conduit au polythiophène.
La chimie du thiophène est essentiellement marquée par son caractère aromatique (4 électrons apportés par les doubles liaisons, deux par le soufre).Index. décimale : 668.9 Polymères Résumé : Novel elastomeric miscible blend nanocomposites have been prepared by co-reacting isocyanate terminated liquid polyurethane pre-polymer with thiol terminated polysulfide together with chain extender, modified organic nanoclay, and curator. The studies report the influence of nanoclay loading on the morphology, mechanical and thermal properties of the nanocomposites. The morphology and state of dispersion of nanoclays in the nanocomposites were studied by high resolution transmission electron microscopy (HRTEM). It was seen that nanoclay particles were well dispersed in the blend at 1, 3, and 5 wt.% nanoclay loadings. The reactive miscibility of blend was confirmed by differential scanning calorimetry (DSC) and fourier transform infrared spectroscopy (FTIR). The effect of clay loading on thermal stability of polysulfide PS/IPU blend and their nanocomposites was studied by thermogravimetric analysis (TGA). It was observed that thermal stability of nanocomposite progressively increased with increase in nanoclay loading. However, about 123% increment in adhesive strength, 78% increment in tensile strength were observed at 3 wt.% clay loaded nanocomposite when compared to control blend. This enhancement in thermal, adhesion and mechanical properties demonstrate that the resulting nanocomposites can be tailored as novel adhesive and coating materials for aerospace application. DOI : 10.3139/217.2581 En ligne : https://drive.google.com/file/d/1D-X0pi8ds_n-GUOOmgZ4tSoQkRRe93CJ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15769
in INTERNATIONAL POLYMER PROCESSING > Vol. XXVII, N° 4 (08/2012) . - p. 461-468[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14087 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of transparent fluorocarbon emulsion doped with antimony tin oxide and TiO2 as thermal-insulating and self-cleaning coating / Xiande Lu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 4 (07/2014)
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PermalinkPreparation and properties of nano-ZnO/organic fluorine modified polyacrylate finishing agent / Sui Zhihui in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 6 (06/2020)
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PermalinkPreparation of antibacterial fatliquoring agents containing zinc oxide nanoparticles for leather industry / Ali Yorgancioglu in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 5 (05/2019)
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PermalinkPreparation of antibacterial sheepskin with silver nanoparticles : potential for use as a mattress for pressure ulcer prevention / Weite Yang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 3 (03/2012)
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PermalinkPreparation of carboxylated graphene oxide nanosheets/polysulphone hollow fibre separation membranes with improved separation and dye adsorption properties / Wenying Shi in COLORATION TECHNOLOGY, Vol. 135, N° 5 (10/2019)
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PermalinkPreparation of fast-drying waterborne nano-complex traffic-marking paint / Daoxing Sun in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 2 (03/2012)
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PermalinkPreparation of flame-retardant polymer nanocomposite textiles / Aadhar A. Mandot in CHEMICAL FIBERS INTERNATIONAL, (10/2017)
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PermalinkPreparation of flame-retardant polymer nanocomposites textiles / Aadhar A. Mandot in CHEMICAL FIBERS INTERNATIONAL, Vol. 66, N° 4 (12/2016)
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PermalinkPreparation of HMDS-modified silica/polyacrylate hydrophobic hard coatings on PMMA substrates / Chao-Ching Chang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 6 (11/2016)
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PermalinkPreparation of nanocomposites containing montmorillonite and SiO2 particle for leather tanning agent / Yan Bao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 12 (12/2012)
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PermalinkPreparation of polysiloxane coating for laser application with improved curing property based on copolymerization modification / Tian-Yu Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
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PermalinkPreparation of UV-curable nano-SiO2/ acrylate coatings modified by P-containing LEPB and their applications on plywood / Xiaojing LV in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)
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PermalinkPreparation of UV-cured spironaphthooxazine/silica/polyacrylate photochromic hard coatings on plastic substrates / Chao-Ching Chang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 2 (03/2018)
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PermalinkPreparation of UV-opaque, Vis-transparent acrylic–silica nanocomposite coating with promising physico-mechanical properties via miniemulsion polymerization / Ali Gharieh in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
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PermalinkPretreatment of wool/polyester blended fabrics to enhance titanium dioxide nanoparticle adsorption and self-cleaning properties / Majid Montazer in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
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PermalinkUn procédé catalytique pour une production industrielle de nanotubes de carbone / Julien Beausoleil in L'ACTUALITE CHIMIQUE, N° 414 (01/2017)
PermalinkPermalinkProcessing of polymer nanocomposites reinforced with cellulose nanocrystals : a challenge / Alain Dufresne in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 5 (11/2012)
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PermalinkProcessing of thermally stable polymer nanocomposites reinforced silicate nanoparticles based on N-trimellitylimido-L-phenyl alanine / Khalil Faghihi in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 2 (05/2013)
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PermalinkProduction of a sprayable waterborne polyurethane coating with silver nanoparticles for combating SARS-CoV-2 / Lucas Dall Agnol in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)
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