| Titre : |
Synthesis of (Sty-co-BA-AA) latexes including ZnO and TiO2 nanoparticle by miniemulsion polymerization |
| Type de document : |
texte imprimé |
| Auteurs : |
Ali Delibas, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 717-727 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Jaunissement (défaut)
Latex
Miniémulsions
Nanoparticules
Polymérisation en émulsion
Revêtements -- Propriétés mécaniques
Styrène-co-butylacrylate-acide acrylique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Herein, it is reported that synthesis of poly(styrene-co-butyl acrylate) latexes containing ZnO and TiO2 nanoparticles was carried out using miniemulsion polymerization. The synthesized latexes and films cast from them were characterized by dynamic light scattering (DLS), X-ray diffraction (XRD), scanning electron microscopy energy dispersive X-ray (SEM-EDAX), transmission electron microscopy (TEM), and thermogravimetric analysis (TGA). Stress–strain and DMA analysis was performed for the mechanical analysis of the films prepared from latexes. The particle sizes of the latexes were about 60 nm for pure latex and latex only containing ZnO and TiO2, while the particle size for latex containing nanoparticle mixture was measured as 120 nm. XRD, SEM-EDAX, and TEM analysis results showed that the nanoparticles were well dispersed in latex. When the mechanical analysis results were compared, latex films including 2% ZnO nanoparticles were found to be stronger. DMA analysis showed that the glass transition temperature (Tg) values of the polymers were between 0 and 10°C and the nanoparticles were not effective in changing the Tg values. Latex films were exposed to 254 nm UV light to determine their yellowing. According to the colorimetric measurement, ZnO nanoparticle-embedded films were found to be more resistant to yellowing. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Experimental procedure - Characterization
- RESULTS AND DISCUSSION : XRD results - TGA results - SEM and TEM results - Mechanical properties of the latex films - Yellowing test of the latex films
- Table 1 : Miniemulsion polymerization recipe for nanocomposite latexes
- Table 2 : Effect of nanoparticles on SC, zeta potential, and particle size
- Table 3 : Stress–strain results of the prepared latex films
- Table 4 : Yellowing results of the latex films |
| DOI : |
https://doi.org/10.1007/s11998-020-00436-y |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-020-00436-y.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35924 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 3 (05/2021) . - p. 717-727
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Synthesis of (Sty-co-BA-AA) latexes including ZnO and TiO2 nanoparticle by miniemulsion polymerization in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
