Accueil
Catégories
> Oxyde de graphène
Oxyde de graphèneVoir aussi
|
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Preparation of modified montmorillonite/graphene oxide composites to enhance the anticorrosive performance of epoxy coatings / Quanxian Hua in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
[article]
Titre : Preparation of modified montmorillonite/graphene oxide composites to enhance the anticorrosive performance of epoxy coatings Type de document : texte imprimé Auteurs : Quanxian Hua, Auteur ; Ben Jing, Auteur ; Mengyuan He, Auteur ; Panfei Sun, Auteur ; Qiang Zhao, Auteur ; Shilong Su, Auteur ; Guanjie Hu, Auteur ; Songjie Li, Auteur Année de publication : 2023 Article en page(s) : p. 1110-1119 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Caractérisation
Composés organiques -- Synthèse
Electrochimie
Epoxydes
Hydrophobie
Montmorillonite
Oxyde de graphène
Réaction de couplage
Revêtements organiques
SilanesIndex. décimale : 667.9 Revêtements et enduits Résumé : Modified montmorillonite/graphene oxide composites (AM@GO) were prepared by a hydrothermal method with silane coupling agent-modified montmorillonite (APTES@MMT) and combined with GO. The structures of the composites were characterized by FTIR, XRD, Raman spectroscopy, BET analysis, and SEM. The results showed that the composites had increased interlayer spacing and formed a loosely laminated stacked structure. The specific surface area (31.6863 m2/g) and pore volume (0.0104 cm3/g) of the composites increased. The hydrophobic and anticorrosive properties of the composite coatings were investigated and compared to the epoxy coating. The composite coatings (AM@GO/EP) had larger contact angles and smoother surfaces than the epoxy coating (EP). After 30 days of immersion, the value of |Z|0.01 Hz was approximately 1011 Ω cm2, which had changed slightly since initial immersion. Mechanistic analysis shows that the improved corrosion resistance of the composite coatings was due to the high specific surface area of the 2D material, the oxygen-containing groups of GO, the amino groups of APTES@MMT and the synergy between the MMT and the GO nanosheets. Note de contenu : - Materials
- Synthesis of APTES@MMT(AM)
- Synthesis of GO
- Synthesis of AM@GO
- Epoxy composite coating preparation
- Electrochemical measurements
- Structural characterization
- Table 1 : Impedance values of different types of coatings under different immersion daysDOI : https://doi.org/10.1007/s11998-022-00731-w En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00731-w.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39451
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 3 (05/2023) . - p. 1110-1119[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24069 - Périodique Bibliothèque principale Documentaires Disponible PVDF/graphene oxide composite nanofibers / Hong Yan Wu in CHEMICAL FIBERS INTERNATIONAL, Vol. 67, N° 4 (12/2017)
[article]
Titre : PVDF/graphene oxide composite nanofibers Type de document : texte imprimé Auteurs : Hong Yan Wu, Auteur Année de publication : 2018 Article en page(s) : p. 208-210 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites
Electrofilature
Mesure
Microscopie électronique à balayage
Morphologie (matériaux)
Nanofibres
Oxyde de graphène
Polyfluorure de vinylidèneIndex. décimale : 677.4 Textiles artificiels Résumé : By electrospinning method, graphene oxide (GO) was used to prepared a series of polyvinylene fluoride (PVDF) PVDF/GO composite nanofibers with different mass fraction of GO. The microstructure of the composite nanofibers was observed using the scanning electron microscope (SEM), and the mean fiber diameter and standard deviation were calculated. The results show that when the mass fraction of GO is high, the PVDF/GO composite nanofibers cannot be prepared. When GO was added, the roughness of the fiber surface is obviously increased,the appearance is uneven, and small holes and raised particles appear in the fiber surface. With the increase of the quality of GO, the average diameter of the fiber increases, and the standard deviation has no obvious change regulation. Note de contenu : - EXPERIMENTS : Matérials, reagents and instruments - Preparation of PVDF/GO composite nanofibers - Property of PVDF/GO composite nanofibers
- RESULTS AND DISCUSSIONS : Macroscopic morphology of composite nanofibers - Microscopic morphology of composite nanofibers
- Diameter of composite nanofibersEn ligne : https://drive.google.com/file/d/1bTBknrodQjaHwYYs0nY7ui9nshx1BgxP/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29723
in CHEMICAL FIBERS INTERNATIONAL > Vol. 67, N° 4 (12/2017) . - p. 208-210[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 19460 - Périodique Bibliothèque principale Documentaires Disponible Reinforcement effects of multiwall carbon nanotubes and graphene oxide on PDMS marine coatings / Levent Cavas in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 1 (01/2018)
[article]
Titre : Reinforcement effects of multiwall carbon nanotubes and graphene oxide on PDMS marine coatings Type de document : texte imprimé Auteurs : Levent Cavas, Auteur ; Pelin Gokfiliz Yildiz, Auteur ; Paraskevi Mimigianni ; Andreas Sapalidis ; S. Nitodas Année de publication : 2018 Article en page(s) : p. 105–120 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Marines (peinture)
Oxyde de graphène
PolydiméthylsiloxaneLe 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.
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Poly (dimethyl siloxane) (PDMS) is a model silicon elastomer used as marine fouling-release coating, because it meets the fouling-release zone conditions of the Baier curve. However, weak mechanical properties limit its use. In this aspect, incorporation of carbon nanoparticles into PDMS is a common method for improving its mechanical properties. Since effective dispersion of nanofillers into polymer matrices is a challenge, a major aim of this study was to examine the PDMS mechanical reinforcement by developing different dispersing methods of pristine MWCNTs into PDMS matrix. SEM images of nanocomposites prepared using dispersion methods 1 and 2 revealed the formation of aggregates which subsequently affected the overall mechanical performance of the samples. Also, the effect of p-MWCNTs content and nanoparticle type [carboxyl-functionalized-MWCNTs, graphene oxide (GO)] on the mechanical properties of the nanocomposites was evaluated. Incorporation of p-MWCNTs did not alter drastically the critical surface energy value of neat PDMS, which subsequently influenced antifouling and cleaning performance of nanoreinforced coatings. To evaluate antifouling and cleaning performance of the nanocomposite coatings, seawater immersion tests were conducted. In conclusion, MWCNTs and GO increased the mechanical strength of the matrix, whereas they contributed to a small extent to the improvement in antifouling and cleaning performance of the composites. Note de contenu : - EXPERIMENTAL METHODS AND MATERIALS :Materials - Dispersion methods - Tensile testing of PDMS composites with carbon nanoparticles - Characterization of surfaces - Carbon nanoparticles-filled PDMS marine nanocoatings - Seawater immersion tests
- RESULTS AND DISCUSSION : The effect of dispersion methods - Reinforcement effect of carbon nanoparticles on PDMS - Seawater immersion testDOI : 10.1007/s11998-017-9956-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9956-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30090
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 1 (01/2018) . - p. 105–120[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 19610 - Périodique Bibliothèque principale Documentaires Disponible A review of high-quality epoxy resins for corrosion-resistant applications / Shams Anwar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 2 (03/2024)
[article]
Titre : A review of high-quality epoxy resins for corrosion-resistant applications Type de document : texte imprimé Auteurs : Shams Anwar, Auteur ; Xianguo Li, Auteur Année de publication : 2024 Article en page(s) : p. 461-480 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Chimie analytique
Composites à fibres de carbone
Copolymère phénolique époxy
Copolymère urushiol formaldéhyde
Electrochimie
Oxyde de graphène
Revêtements -- Détérioration
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Corrosion is a significant challenge in many practical applications, leading to the deterioration of metal infrastructure and equipment. A literature review indicates that various epoxy resins (ERs) and epoxy phenolic resins (EPRs) based coatings are available and are effectively applied on steel and aluminum surfaces for protection against a corrosive environment. The corrosion-resistant performance of ERs and EPRs can be further improved by incorporating numerous chemical compounds through improved bonding, such as inorganic compounds and carbon-based materials, e.g., zinc oxide (ZnO), titanium dioxide (TiO2), silicon dioxide (SiO2), carbon fiber, carbon nanotube (CNTs) and graphene oxide (GO). Surface heterogeneity (surface pores) of coatings contributes to reduced corrosion protection as corrosion species can diffuse to these inconsistencies and break the coating structure of the organic coating. However, after over a hundred years of research and development, the degradation/failure mechanism of organic coatings is still under study. This paper provides an overview of the current state-of-the-art knowledge of the numerous protective organic coatings and coating approaches and examines coating performance and mechanism for the coating degradation and failure in a corrosive environment. Finally, a summary is presented on the understanding of the mechanisms and challenges associated with, and critical factors influencing, coating durability and predictive formulation against coating damage. Note de contenu : - DEGRADATION MECHANISM OF ORGANIC COATINGS : Ionic migration - Conduction route development
FUNDAMENTAL OF EPOXY RESINS (ERS) : Bisphenol ERs - Cycloaliphatic ERs - Novolac ERs - Trifunctional and tetrafunctional ERs - Halogenated ERs
- Fundamentals of epoxy phenolic resins (EPRs)
- EPOXY-BASED POLYMER COMPOSITES : Inorganic polymer composites - Thermoplastic polymer composites - Carbon fiber composites - Carbon nanotube composites - Graphene oxide (GO) with urushiol-formaldehyde composites
- CORROSION-RESISTANT EPOXY RESIN COATINGS
- FUTURE RESEARCH AND RECOMMENDATIONSDOI : https://doi.org/10.1007/s11998-023-00865-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00865-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40770
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 2 (03/2024) . - p. 461-480[article]A review on application of carbon nanostructures as nanofiller in corrosion-resistant organic coatings / Sepideh Pourhashem in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
[article]
Titre : A review on application of carbon nanostructures as nanofiller in corrosion-resistant organic coatings Type de document : texte imprimé Auteurs : Sepideh Pourhashem, Auteur ; Ebrahim Ghasemy, Auteur ; Alimorad Rashidi, Auteur ; Mohammad Reza Vaezi, Auteur Année de publication : 2020 Article en page(s) : p. 19-55 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Charges (matériaux)
Epoxydes
Fullerènes
GraphèneLe graphène est un cristal bidimensionnel (monoplan) de carbone dont l'empilement constitue le graphite. Il a été isolé en 2004 par Andre Geim, du département de physique de l'université de Manchester, qui a reçu pour cette découverte le prix Nobel de physique en 2010 avec Konstantin Novoselov. Il peut être produit de deux manières : par extraction mécanique du graphite (graphène exfolié) dont la technique a été mise au point en 2004, ou par chauffage d'un cristal de carbure de silicium, qui permet la libération des atomes de silicium (graphène epitaxié). Record en conduction thermique jusqu'à 5300 W.m-1.K-1. C'est aussi un matériaux conducteur.
Nanostructures
Nanotubes de carbone à parois multiplesUn nanotube de carbone multifeuillet est constitué de plusieurs feuillets de graphènes enroulés les uns autour des autres. Il existe deux modèles pour décrire la structure des nanotubes multifeuillets :
- le modèle poupée russe: les plans de graphène sont arrangés en cylindres concentriques ;
- le modèle parchemin: un seul feuillet de graphène est enroulé sur lui-même, comme une feuille de papier.
Noir de carbone
Oxyde de graphène
Revêtements organiques
Revêtements protecteurs
Toxicologie cellulaireIndex. décimale : 667.9 Revêtements et enduits Résumé : Since corrosion has tremendous economic effects, academics and industries have sought to develop more effective coatings. These efforts have led to profound importance of nanocomposite coatings based on polymers and carbon nanostructures. It is shown that good reinforcement, advanced mechanical properties, and high corrosion resistance are only found at relatively low levels of nanocarbon (i.e., fullerene, carbon black, carbon nanotubes, graphene, graphene oxide, and carbon dots) loadings in coating compositions. Herein, a survey of breakthrough scientific studies on application of carbon nanostructures in corrosion-resistant organic coatings is carried out to pave the way for future developments in novel nanocoatings. Note de contenu : - Fullerene
- Carbone black
- Carbone nanotubes
- Graphene
- Graphene oxide : Functionalizing GO sheets - Decorating nanoparticles on GO sheets
- Carbon dots
- Application of multicarbon nanostructures
- Corrosion protection mechanism
- Cytotoxicity of carbon nanostructuresDOI : 10.1007/s11998-019-00275-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00275-6.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33726
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 1 (01/2020) . - p. 19-55[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21517 - Périodique Bibliothèque principale Documentaires Disponible Rheological properties and anticorrosion performance of graphene oxide- and reduced graphene oxide-based nanocomposites / Kerim Yapici in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
PermalinkStretchable strain sensors based on conductive coating cracks with improved interfacial adhesion by wet phase separation treatment / Wei Luo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 5 (09/2020)
PermalinkStudy on a novel composite coating based on PDMS doped with modified graphene oxide / Jijun Tang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 2 (03/2018)
PermalinkSynergistic effect between modified graphene oxide and ammonium polyphosphate on combustion performance, thermal stability and mechanical properties of polylactic acid / X.-Y. Pang in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 4 (2021)
PermalinkSynthesis and characterization of polyurethane/reduced graphene oxide composite deposited on steel / Eric C. Romani in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 6 (11/2018)
PermalinkSynthesis and characterization of wood flour modified by graphene oxide for reinforcement applications / Ammar Boudjellal in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 1 (2022)
PermalinkSynthesis and leather application properties of a carboxylated graphene oxide modified waterborne polyacrylate leather finishing agent / Shuangquan Lai in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 6 (06/2019)
PermalinkThe preparation and study of functionalized graphene oxide/self-healing waterborne polyurethane composites / Zhiqiang Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
PermalinkThe prospects for antiviral coatings / Peter Collins in SURFACE COATINGS INTERNATIONAL, Vol. 103.3 (05-06/2020)
PermalinkTwo-dimensional carbon material incorporated and PDMS-coated conductive textile yarns for strain sensing / G. M. Nazmul Islam in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)
PermalinkVisible-light-driven photocatalytic degradation of rhodamine B using Bi2WO6/GO deposited on polyethylene terephthalate fabric / Zoufei Du in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)
Permalink