| Titre : |
Improvement effects of CaO nanoparticles on tribological and microhardness properties of PMMA coating |
| Type de document : |
texte imprimé |
| Auteurs : |
L. D. Aguilera-Camacho, Auteur ; C. Hernà ndez-Navarro, Auteur ; K. J. Moreno, Auteur ; J. S. Garcia-Miranda, Auteur ; A. Arizmendi-Morquecho, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 347-355 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Chaux
Dureté (matériaux)
Nanoparticules
Polyaddition
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.
Revêtements organiques
Tribologie (technologie)
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Poly(methyl methacrylate)/calcium oxide (PMMA/CaO) nanocomposite in the form of solution has been successfully prepared by mixing CaO nanoparticles and PMMA obtained by a free radical polymerization. For comparative studies, pure PMMA coating was also prepared to determine the influence of CaO nanoparticles incorporation into PMMA matrix on the properties behavior. Fourier transform infrared technique was used to study the synthesis of PMMA and PMMA/CaO nanocomposite. The coating thickness was determined by profilometry ; it was increased from 97 to 107 µm, when CaO nanoparticles were added. The surface morphology of the coatings was characterized by scanning electron microscopy. The wear tests for PMMA/CaO and PMMA coatings on ultra-high molecular weight polyethylene substrates were carried out on a pin-on-disk tribometer in dry conditions with normal loads ranging from 2 to 10 N. The friction coefficient behavior of PMMA coating was improved by the addition of CaO nanoparticles ; however, volume loss and wear rate values were slightly higher for PMMA/CaO coatings than those corresponding to PMMA coatings. Microhardness of PMMA and PMMA/CaO coatings was also evaluated by Vickers measurements, revealing an increase of one order of magnitude for PMMA/CaO coating. |
| Note de contenu : |
- Chemical
- Coating deposition
- Evaluation of coatings
|
| DOI : |
10.1007/s11998-014-9639-y |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9639-y.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23653 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 2 (03/2015) . - p. 347-355
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