| Titre : |
Preparation and characterization of a stable core-shell latex with VAE in the core |
| Type de document : |
texte imprimé |
| Auteurs : |
Shi Luo, Auteur ; Bailing Liu, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 286-291 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Acrylate de butyle
Caractérisation
Copolymère éthylène acétate de vinyle
Core-Shell
Fourier, Spectroscopie infrarouge à transformée de
Latex
Lumière -- Diffusion
Microscopie électronique en transmission
Persulfate d'ammonium
Polymérisation en émulsion
Styrène
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
A core-shell latex containing Butyl Acrylate (BA) and Styrene (St) in shell, and Vinyl Acetate-Ethylene (VAE) in core was successfully prepared by seeded emulsion polymerization with water as the reaction medium. Several key elements related to the polymerization, including core/shell ratio, BA/St ratio and Ammonium persulfate (APS) dosages were investigated in details. Accordingly, an optimal reaction condition was developed. The synthesized l,atex particles were characterized by Transmission electron microscopy (TEM) and Dynamic light scattering (DLS). The clear core-shell structure and chemical components of the core-shell latex particles were determined by TEM and Fourier transform infrared (FTIR) spectrometry, respectively. In addition, the comparisons between the core-shell latex and VAE latex were made. The experimental results indicated that the developed core-shell latex produced improved leather related properties for thermal stability, water resistance and adhesion. |
| Note de contenu : |
- MATERIALS
- SEEDED EMULSION POLYMERIZATION
- CHARACTERIZATION : Solid content and conversion - Stability of the emulsion - Water absorption ratio - Thermogravimetric analysis - Adhesive strength - Infrared spectra - Particle size and morphology
- SYNTHESIS CONDITIONS OF THE CORE/SHELL : Core/shell ratio - BA/St ratio - APS dosage
- FTIR SPECTRA
- LATEX PARTICLE MORPHOLOGY OF CORE-SHELL EMULSION
- THERMAL STABILITY ANALYSIS
- WATER ABSORPTION OF EMULSION FILMS
- ADHESION PERFORMANCE OF EMULSIONS
- TABLE I : Recipes for the preparation of core-shell (BA-St-VAE) by seeded emulsion polymerization with various core/shell ratio
- TABLE II : Recipes for the preparation of core-shell (BA-St-VAE) by seeded emulsion polymerization with various BA/St ratio
- TABLE III : Recipes for the preparation of core-shell (BA-St-VAE) by seeded emulsion polymerization with various content of APS
- TABLE IV : The latex stability with various core/shell ratio
- TABLE V : The emulsion stability with various BA/St ratio
- TABLE VI : The latex stability and polymerization conversion with various APS dosage
- TABLE VII : The water absorption ratio and contact angle of latex films
- TABLE VIII : The adhesive strength of emulsions |
| En ligne : |
https://drive.google.com/file/d/1pzeVlxUmYVjPxtCANlg-jhi6qjpX1U-T/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16059 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVII, N° 9 (09/2012) . - p. 286-291
Aller sur edunet
Accueil
Ajouter le résultat dans votre panier Affiner la recherchePreparation and characterization of a stable core-shell latex with VAE in the core / Shi Luo in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 9 (09/2012)
