| Titre : |
Dynamic light scattering and zeta potential of a leather finishing system |
| Type de document : |
texte imprimé |
| Auteurs : |
Xia Yan, Auteur ; Zhao Pengxiang, Auteur ; Wuyong Chen, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 32-36 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorants
Cuirs et peaux -- Finition
Polyacryliques
Polymères en émulsion
Polyuréthanes
Potentiel zeta
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Finishing is one of the significant steps in the process by which the tanning industry transforms leather into an end-product. Therefore, a deep study of the finishing system is necessary to help the control of this step and bring innovation to the finishing process. Based on principles of dynamic light scattering (DLS) and zeta potential, the stability of a leather finishing system was investigated. Polyrethane and acrylic resin were used to prepare a single finishing system and wax emulsion, silicone oil and pigment paste were added to the single finishing system to make three binary finishing systems, then a ternary system was prepared by adding was emulsion and silicone oil to the single finishing system.
The particle size and zeta potential of the single, binary and ternary finishing systems were characterized using the zetasizer nano-ZS (Malvern Instruments Ltd., UK). The results showed that the stability of the finishing system was not affected with the addition of was emulsion and silicone oil, because the zeta potential was always greater than 30mv, however ; a significant decrease of zeta potential was observed due to the addition of pigment to the finishing system, which indicates a decrease of the finishing system's stability. The results provide a comprehensive and theoretical understanding of the interactions among materials in a finishing system. |
| Note de contenu : |
- EXPERIMENTALE PROCEDURE : Materials - Preparationof samples for the test of particle size and zeta potential - Measurement of particle size distribution and zeta potential of finishing system
- RESULTS AND DISCUSSION : Particle size distribution - Zeta potential of finishing system |
| En ligne : |
https://drive.google.com/file/d/1sLX_CMIVNamg502Rrvg4YI-sRkBuUw3j/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13552 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 1 (01-02/2012) . - p. 32-36
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Dynamic light scattering and zeta potential of a leather finishing system in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 1 (01-02/2012)
