| Titre : |
Preparation and properties of nano-ZnO/organic fluorine modified polyacrylate finishing agent |
| Type de document : |
texte imprimé |
| Auteurs : |
Sui Zhihui, Auteur ; San Jinglong, Auteur ; Xuedong Wu, Auteur ; Jingbin Zhang, Auteur ; Lingfang Sun, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 207-214 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Angle de contact
Cuirs et peaux -- Finition
Cuirs et peaux -- Propriétés mécaniques
Essais de résilience
Essais dynamiques
Fluor
Fourier, Spectroscopie infrarouge à transformée de
Humidité -- Absorption:Eau -- Absorption
Latex
Nanoparticules
Oxyde de zinc
Polyacrylates
Potentiel zeta
Résistance à la déchirure
Spectroscopie de photoélectrons
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
A nano-ZnO/organic fluorine-modified polyacrylate leather finishing agent was prepared using a mixture of a Silyl-modified nano-ZnO, dodecafluoroheptyl methacrylate (DFMA), methyl methacrylate (MMA) and butyl acrylate (BA) as raw materials. A semi-continuous seeded emulsion polymerization followed. The overall research objective was to improve the bacteriostatic, hydrophobicity and anti-aging properties of leather articles. The structure of the composite emulsion and its film were characterized and analyzed by FT-IR, TEM and XPS. The results showed that the latex particles had an obvious core-shell structure, a smooth surface and were monodisperse. The particle size of the emulsion ranged between 30 and 50 nm. The average value of Zeta potential was -40.1 mV which signified a good emulsion stability. The composite emulsion and its film had good UV resistance and water resistance. When the content of organic fluorine in the film was a maximum 20 %, the contact angle of a water drop on the finished leather, tensile strength and tear strength were 133.48°, 620 N and 61 N, respectively. When the content of nano-ZnO in the film was 1.0%, the average width of antibacterial band of finished leather was 2.1 mm. The finished leather also demonstrated a good anti-aging property. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Modification of nano-ZnO - Preparation of nano-ZnO/organic fluorine-modified polyacrylate emulsion - Finishing process of leather
- CHARACTERIZATION AND PERFORMANCE MEASUREMENTS : Fourier transform infrared spectra (FT-IR) analysis - Particle size and zeta potential of composite emulsion - Morphology of latex particles (TEM) - XPS analysis of latex film surface - Water absorption measurement of latex film - UV resistance measurement of composite emulsion - EDS-mapping analysis of finished leather - The contact angle measurement of leather to water - Measurement of application properties
- RESULTS AND DISCUSSION : FT-IR analysis - Particle size distribution and zeta potential of emulsion - Morphological analysis of emulsion partifles - XPS analysis of latex film - Water absorption of latex film - UV transmittance of composite emulsion - EDS analysis of leather surface - Bacteriostatic property of the finished leather - Contact angle of leather to water - Strength test of leather - Anti-aging test of leather - Physical performance |
| DOI : |
https://doi.org/10.34314/jalca.v115i6.3823 |
| En ligne : |
https://drive.google.com/file/d/1zvX5ebHIRemL_rlmmM5UMHqq_IBQQ7dE/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34322 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXV, N° 6 (06/2020) . - p. 207-214
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