[article]
| Titre : |
Superhydrophobic modification of collagen fiber : A potential substitute for tanning |
| Type de document : |
texte imprimé |
| Auteurs : |
Shuangfeng Xu, Auteur ; Ya-Nan Wang, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 422-431 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Collagène
Cuir
Déshydratation
Hydrophobie
Innovations
Procédé de fabrication sans tannage
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Tanning is considered to be the crosslinking reaction between collagen fibers and tanning agents, and a majority of tanning reactions result in suppressed water absorption and enhanced hydrophobicity of leather. However, extensive use of tanning agents may bring a burden to the environment. Herein, to facilitate a sustainable leather manufacturing industry, we propose a revolutionary strategy of “tanning” without tanning agents. Based on this strategy, superhydrophobic collagen fibers (FAS-CFs) were fabricated through dehydration, followed by superhydrophobic modification. Dehydration aimed to eliminate the “sticky” effect of water on collagen fiber to obtain a dispersed hierarchical structure. Superhydrophobic modification not only dispersed and stabilized the fiber structures, but also protected the fiber dispersity from water immersion. Compared with chrome-tanned collagen fibers (Cr-CFs) and glutaraldehyde-tanned collagen fibers (G-CFs), FAS-CFs showed higher hydrophobicity, lower water absorption, and superior mechanical properties. Meanwhile, FAS-CFs exhibited a high thermal denaturation temperature of 92.5°C and retained their original shape after being heated to 100°C. Therefore, our proposed strategy is expected to be a potential substitute for conventional tanning and might contribute to cleaner and sustainable leather manufacturing. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Fabrication of collagen fibers (CFs) - Fabrication of superhydrophic collagen fibers (FAS-CFs) - Fabrication of Cr (III) cross-linked collagen fibers (Cr-CFs) - Fabrication of glutaraldehyde cross-linked collagen fibers (G-CFs) - Characterization of CFs and FAS-CFs - Measurements of surface wettability of CFs, G-CFs, Cr-CFs, and FAS-CFs - Measurements of hydrophobic durability of FAS-CFs - Measurements of water absorption of CFs, G-CFs, Cr-CFs, and FAS-CFs - Measurements of the thermal stability - Measurements of the mechanical properties
- RESULTS AND DISCUSSION : "Tanning agent-free strategy" for leather manufacturing - Characterization of CFs and FAS-CFs - Effect of fluorine content on hydrophobicity of FAS-CFs - Hydrophobic durability of FAS-CFs - Hydrophobicity of CFs, G-CFs - Cr-CFs, and FAS-CFs - Thermal stability and mechanical properties of CFs, G-CFs, Cf-CFs, and FAS-CFs |
| DOI : |
https://doi.org/10.34314/jalca.v117i10.6182 |
| En ligne : |
https://drive.google.com/file/d/1QXwPlu1ybF1PRLjOgUWAIcENm-vwpRQ-/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38228 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVII, N° 10 (10/2022) . - p. 422-431
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Superhydrophobic modification of collagen fiber : A potential substitute for tanning in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 10 (10/2022)
