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Poly(methyl methacrylate) intercalated layered double hydroxide film with enhanced alkaline corrosion resistance for aluminum alloy AA6061 / Po-Yi Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
[article]
Titre : Poly(methyl methacrylate) intercalated layered double hydroxide film with enhanced alkaline corrosion resistance for aluminum alloy AA6061 Type de document : texte imprimé Auteurs : Po-Yi Liu, Auteur ; Chih-Cheng Tsai, Auteur ; Shang-Tien Tsai, Auteur ; Wen-Chyuan ChangJean, Auteur ; Shou-Chiu Cheng, Auteur ; Tseng-Chang Tsai, Auteur Année de publication : 2021 Article en page(s) : p. 777-787 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aluminium -- Alliages
Anticorrosifs
Anticorrosion
Bases (chimie)
Caractérisation
Electrochimie
Hydroxydes doubles lamellaires
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.
Polyuréthanes
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : The oriented growth of Zn-Al LDH film perpendicular to the surface of AA6061 substrate was confirmed by scanning microscopy image and X-ray diffraction pattern. The LDH film achieved a complete surface coverage on the AA6061 substrate and exhibited strong corrosion resistance in NaOH solution (pH of 13). Furthermore, a preparation protocol for poly(methyl methacrylate) (PMMA)-LDH composite film was demonstrated. LDH film intercalated only with PMMA but not polyurethane demonstrated greatly enhanced alkaline corrosion resistance, showing a more positive corrosion potential and reduced corrosion current by four orders of magnitude in electrochemical polarization spectroscopy. The enhancement in corrosion resistance by PMMA intercalation could be attributed to the increasing compactness in the LDH film and increasing hydrophobicity. Note de contenu : - EXPERIMENTAL : Substrate pretreatment procedure - Growth of LDH film coated on AA6061 - Intercalation of dodecyl sulfate anion (SDS) into LDH film - Preparation of poly(methyl methacrylate) (PMMA)—LDH hybrid film - Preparation of polyurethane (PU)—LDH hybrid film - Characterization - Electrochemical property measurement
- RESULTS AND DISCUSSION : Zn-Al LDH film as a protection layer for AA6061 - Functionalization of LDH film-coated AA6061
- Table 1 : Corrosion parameters of LDH-coated alloy plates derived from the polarization curves in 0.1 M NaOH solution
- Table 2 : Corrosion parameters of LDH–polymer composite film-coated AA6061 alloy plate derived from the polarization curves in 0.1 M NaOH solutionDOI : https://doi.org/10.1007/s11998-020-00442-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00442-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35929
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 3 (05/2021) . - p. 777-787[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22785 - Périodique Bibliothèque principale Documentaires Disponible Processing of polymer nanocomposites / Samuel Kenig / Munchen [Germany] : Hanser (2019)
Titre : Processing of polymer nanocomposites Type de document : texte imprimé Auteurs : Samuel Kenig, Editeur scientifique ; Musa R. Kamal, Editeur scientifique Editeur : Munchen [Germany] : Hanser Année de publication : 2019 Importance : XX-497 p. Présentation : ill. Format : 25 cm ISBN/ISSN/EAN : 978-1-56990-635-4 Prix : 230 E Note générale : Index - Bibliogr. Langues : Anglais (eng) Catégories : Argile
CelluloseLa cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules.
Charges (matériaux)
Composites -- Extrusion
Composites -- Moulage par injection
Couches minces multicouches
HalloysiteL'halloysite-7Å est une espèce minérale du groupe des silicates sous-groupe des phyllosilicates de formule Al2Si2O5(OH)4 avec des traces de : Ti ; Ca ; Na ; K ; Fe ; Cr ; Mg ; Ni ; Cu. Ses principaux constituants, outre l'oxygène, sont l’aluminium (20,90 %), le silicium (21,76 %), et l’hydrogène (1,56 %).
Hydroxydes doubles lamellaires
Matériaux hybrides
Mousses plastiques
Nanotechnologie
Nanotubes
Polymères
Rhéologie
ThermocinétiqueIndex. décimale : 668.4 Plastiques, vinyles Résumé : Nanocomposites have been of high research interest in the past decades and practical applications are now emerging. Although there have been previous works on nanocomposites, this book offers a current overview with a special emphasis on processing.
The processing of nanocomposite polymers is the most important stage bridging the technology between the composition of the nanocomposites and their final properties and derived applications, due to the structuring during processing of the polymer at the nanoscale. This book covers the fundamental aspects involved in the processing of thermoplastic and thermoset nanocomposites. The processing methods include extrusion, injection molding, blow molding, thermoforming, and compression molding. Also covered are nanoparticle dispersion, distribution, and compatibilization, and applications of polymer nanocomposites.
Edited and written by leading experts in the field, this book is a major contribution to a growing and exciting area of research, focusing on :
- Dispersion and distribution of nanoparticles using sonication, roll mixing, shear mixing, elongational mixing, solvent mixing, melt mixing, and in situ polymerization
- Functionalization of nanoparticles for compatibilization with various polymer systems
- Processing of polymer nanocomposites, including rheology as well as nanoparticles’ orientation development during extrusion and injection molding
- The effect of dispersion, functionalization, and processing technologies on orientation, morphology, and derived nanocomposite mechanical, thermal, electrical, and physical propertiesNote de contenu : 1. The effect of processing conditions on the dis per sion and microstructure of organoclay/poly propylene nanocomposites in twin-screw extrusion
2. Ultrasound-assisted processing of nanocomposites
3. Monitoring dispersion and re-agglomeration phenomena during the manufacture of polymer nanocomposites
4. The effect of dispersion and particle-matrix interactions on the fatigue behavior of novel epoxy/halloysite nanocomposites
5. Effect of melt processing on multi-walled carbon nanotube length
6. Microinjection molding of filler-loaded polymer nanocomposites
7. Polymer nanocomposites and multilayer nanocomposite films by coextrusion
8. The effect of foaming on the properties of carbon nanotubes/polymer composites
9. The effect of solid-state shear processing on the network formation of clay-based polymer nanocomposites
10. Orientation development during processing of nanocomposite polymers
11. Anomalous viscoelastic behaviors of polymer nanocomposites during shear and extensional deformations
12. Polymer nanocomposites based on layered double hydroxides (ldhs)
13. Polymer-cellulose nanocrystal (cnc) nanocomposites
14. Cellulose nanocrystals : particles and polymer nanocomposites
15. Processing and properties of carbon nanotubes/glass/epoxy nanocomposites
16. Processing influence on thermal conductivity of polymer nanocompositesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36938 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23198 668.4 KEN Monographie Bibliothèque principale Documentaires Disponible Recent progress of self-healing coatings for magnesium alloys protection / N. A. Johari in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
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Titre : Recent progress of self-healing coatings for magnesium alloys protection Type de document : texte imprimé Auteurs : N. A. Johari, Auteur ; J. Alias, Auteur ; A. Zanurin, Auteur ; N. S. Mohamed, Auteur ; N. A. Alang, Auteur ; M. Z. M. Zain, Auteur Année de publication : 2022 Article en page(s) : p. 757-774 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Hydrophobie
Hydroxydes doubles lamellaires
Magnésium -- Alliages
Métaux -- Revêtements protecteurs
Nanotechnologie
Polymères
Revêtement autoréparant
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : As the lightest structural metal and having a natural ionic presence with compatible biological systems, magnesium (Mg) has been emphasized in vehicle fuel economy for the automobile industry and is appropriate for biodegradable implants. However, the reactive nature of Mg makes it susceptible to corrosion. The electrochemical instability of Mg is due to long-term hydrogen gas evolution, microgalvanic reaction between the matrix and second phase, presence of impurities, and formation of non-protective corrosion product. Many studies have been done to protect Mg and its alloys from corrosion, and one way to prevent direct contact between magnesium substrate and corrosive medium is by applying a stable coating. Protective coating with self-healing properties has become an efficient technique to improve the corrosion resistance of Mg alloys. A self-healing coating can contain released ion exchange of corrosion inhibitors that could improve the coating stability significantly, while coating with embedded nanocontainers is able to autonomously self-heal via stimulus controlled-release upon crack and damages. In this review, recent studies on functional coating with self-healing ability including layered double hydroxides, cerium conversion coating, plasma electrolytic oxidation, graphene oxide coating, and smart self-healing coating are highlighted in the first section. The nanocontainers containing inhibitor coating and self-healing coating with superhydrophobic and biocompatibility function are reviewed afterward. Note de contenu : - FUNCTIONAL COATING WITH SELF-HEALING ABILITY : Layered double hydroxides (LDHs) coating - Cerium conversion coating - Plasma electrolytic oxidation (PEO) - Hybrid PEO-composite coating - Graphene oxide-coating
- NANOCONTAINERS CONTAINING INHIBITORS : Mesoporous nanocontainers - Zeolites - Montmorillonite (MMT) clay - Halloysite nanotubes (HNTs)
- SELF-HEALING COATING WITH A PARTICULAR PURPOSE : Superhydrophobic/Superamphiphobic coating - Biocompatible self-healing coating
- Table 1 : Research development of superhydrophobic coating for Mg alloys and their performanceDOI : https://doi.org/10.1007/s11998-021-599-2 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00599-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38070
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 3 (05/2022) . - p. 757-774[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23605 - Périodique Bibliothèque principale Documentaires Disponible