[article]
| Titre : |
The influence of microwave non-thermal effect on leather properties in drying |
| Type de document : |
texte imprimé |
| Auteurs : |
Jinwei Zhang, Auteur ; Changlong Zhang, Auteur ; Wu Jianpeng, Auteur ; Wuyong Chen, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 135-139 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cuir -- Séchage
Cuirs et peaux -- Propriétés mécaniques
Micro-ondes
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
In order to study the influence of microwave, especially non-thermal effect, on leather properties, the microwave was used to dry leather together with the oven dried leather as a control. The back, butt and belly of dried leathers were tested for mechanical properties, softness, shrinkage temperature, chrome and fat migration, microstructure and dielectric constant. The results showed that microwave could improve the mechanical properties, softness and shrinkage temperature as a visible non-thermal effect. The non-thermal effect could also promote uniformity of chrome tanning agent and fatliquoring agent in leather and strengthen combination of these materials with collagen. In addition, the fiber weaving of microwave dried leather was more orderly and porous proved by SEM and XRD. Furthermore, the dielectric constant of microwave dried leather was higher than control, showing a direct proof of non-thermal effect for microwave. To sum up, Microwave in leather drying has not only thermal effect but also non-thermal effect on improving leather overall performance. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Leather drying process - Testing methods : Mechanical properties - Shrinkage temperature (Ts) - Chrome content and distribution - Fat content and distribution - Scanning electron microscope (SEM) - X-ray diffraction scanning (XRD) - Dielectric constant
- RESULTS AND DISCUSSION : Influence of microwave drying on leather : Mechanical properties - Influence of microwave drying on leather shrinkage temperature-the indirect evidence of non-thermal effect - Influence of microwave drying on solute migration - The indirect evidence of non-thermal effect - Influence of microwave drying on fiber structure - The indirect evidence of non-thermal effect - Influence of microwave drying on leather dielectric constant - The direct evidence of non-thermal effect |
| En ligne : |
https://drive.google.com/file/d/1gepEOCd9SBf0b-ZKzFVUVSRhlFGbQob8/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28363 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 4 (04/2017) . - p. 135-139
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