| Titre : |
Synthesis and characterization of local clay–titanium dioxide core–shell extender pigments |
| Type de document : |
texte imprimé |
| Auteurs : |
C. M. Ewulonu, Auteur ; I. O. Igwe, Auteur ; G. N. Onyeagoro, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 931-940 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Argile
Charges (matériaux)
Core-Shell
Dioxyde de titane
Kaolin
Pigments -- Synthèse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A simple chemical technique has been used to prepare core–shell extender pigments based on Nigerian indigenous clays as core and titanium dioxide as shell. The prepared core–shell extender pigments were characterized using X-ray fluorescence and scanning electron microscopy. The physico-chemical properties of these extender pigments were also evaluated according to ASTM measurements. The study showed that the prepared core–shell pigments were nontoxic and environmentally friendly. They are of low cost and can be incorporated in semi-gloss paints, paper, rubber, and plastic composites without much effect on the volume. The characteristics of these pigments showed that they combine the properties of both their precursors, and have the potential to overcome their disadvantages, e.g., low hiding power of clays and photochemical activity of titanium dioxide. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Particle size analysis - Preparation of core-shell extender pigments - Characterization of prepared extender pigments
- RESULTS AND DISCUSSION : Pigment chemical composition and morphology - Extender properties |
| DOI : |
10.1007/s11998-016-9786-4 |
| En ligne : |
http://link.springer.com/content/pdf/10.1007%2Fs11998-016-9786-4.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27132 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 5 (09/2016) . - p. 931-940
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