| Titre : |
Preparation of cross-linked fluorosilicone acrylate emulsions |
| Type de document : |
texte imprimé |
| Auteurs : |
Shusen Cao, Auteur ; Xiaolong Chen, Auteur ; Wanting Zhao, Auteur ; Lijun Chen, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 20-22 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Diméthylacrylate d'éthylène glycol
Fluorosilicones
Polyacrylates
Polymérisation en émulsion
Revêtements organiques
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A semi-continuous seeded emulsion polymerisation method was used to prepare an aqueous acrylate emulsion with MMA and BA as the main monomers and EGDMA as the cross-linking monomer. Silicon monomer VTES and fluoromonomer DFMA were added to optimise the acrylate emulsion. The experimental results show that after adding the cross-linking agent, the compactness of the latex film is improved, the water absorption rate is greatly reduced, and the thermal decomposition temperature is increased by 12.32°C. It shows that the heat resistance and water resistance of the latex film of the prepared emulsion are improved. After adding silicon monomer and fluorine monomer, the water resistance of the latex film is greatly improved. In particular, the surface of the fluorine-containing latex film exhibits hydrophobicity. |
| Note de contenu : |
- EXPERIMENT : Materials - Preparation of luorinated acrylate latex
- RESULTS AND DISCUSSION : FTIR of film - Emulsion appearance and stability - Influence of initiator dosage on monomer conversion rate and coagulation rate
- Scheme 1 : Synthesis formula for preparing cross-linked fluorosilicone acrylate emulsion
- Table 1 : The influence of the amound of emulsifier and the ratio of anion to non-ion on the calcium ion and mechanical stability of the latex
- Table 2 : The effect of emlulsifier dosage on the particle size of latex particles
- Table 3 : The influence of different components on the water absorption and surface water contact angle of latex film |
| En ligne : |
https://drive.google.com/file/d/1PqqPKJY6x8mW7XFdgEBhJcgZU8vYnKNq/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36131 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 211, N° 4670 (08/2021) . - p. 20-22
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