| Titre : |
Effect of carbon nanotubes on electrical and mechanical properties of multiwalled carbon nanotubes/epoxy coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
M. Zabet, Auteur ; S. Moradian, Auteur ; Z. Ranjbar, Auteur ; N. Zanganeh, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 191-200 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse thermomécanique dynamique
Conduction électrique
Dépôt électrolytique
Epoxydes
Microscopie électronique à balayage
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.
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In the present study, attempts were made to enhance conductivity of electrocoats (based on epoxy amine adduct) containing NH2-multiwalled carbon nanotubes (MWCNTs). The weight percent of incorporated MWCNTS into the electrocoat matrix varied in the range of 0.6–3.6 wt% to obtain a series of electrocoatings. These were then applied on steel substrates by a cathodic electrodeposition technique. Electrocoated films were characterized utilizing scanning electron microscopy and optical microscopy. The results illustrated that electrical conductivity was enhanced by increasing of the MWCNT load. At the percolation threshold, throwing power was dropped while the recoating ability was enhanced. Mechanical behavior of nanocomposites containing MWCNTs in the range of 0–2.8 wt% was investigated by dynamic mechanical thermal analysis (DMTA) and nanoindentation test methods. DMTA analysis revealed that the width of tan δ was increased by the addition of nanotubes up to 2.8 (wt%). Also, the results obtained from the nanoindentation test showed that the elastic modulus and hardness of the nanocomposites were decreased by the addition of MWCNTs. |
| Note de contenu : |
- EXPERIMENTAL : Materials and sample preparation - Electrodeposition procedures - Instrumentation
- RESULTS AND DISCUSSION : Electrodeposition of samples - Conductivity of coated films containing MWCNT - Morphological properties of the films containing MWCNT - Throwing power measurement - Mechanical properties of MWCNT/epoxy coatings |
| DOI : |
10.1007/s11998-015-9723-y |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9723-y.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25388 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 1 (01/2016) . - p. 191-200
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