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A leather coating with self-healing characteristics / Feifei Liang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)
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Titre : A leather coating with self-healing characteristics Type de document : texte imprimé Auteurs : Feifei Liang, Auteur ; Tianyou Wang, Auteur ; Haojun Fan, Auteur ; Jun Xiang, Auteur ; Yi Chen, Auteur Année de publication : 2020 Article en page(s) : 5 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuir
Polymères autoréparants
Polyuréthanes
Revêtement autoréparantIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Genuine leather is often coated before making daily necessities such as shoes, clothing, bags, sofas, car seats, etc., so as to impart leather products various colours, higher wear resistance and water resistance and so on. However, the coating of these products is often damaged in daily use which will decrease its aesthetic effect and practicability. Therefore, how to improve the scratch resistance of leather coatings has been puzzling people all the time. It is a common knowledge that animals and plants can repair the injured biological tissues by himself. According to this principle, here, we prepared a type of self-healing water-borne polyurethane with disulfide bond in the main chain by using HEDS as chain extender, and the self-healing system was triggered by the disulfide bonds with the help of shape memory function of waterborne Polyurethane, self-healing experiments how that the damaged of leather coating can be repaired fully at 60 °C for 12 h. Note de contenu : - Table 1 : Mechanical properties variation of polyurethane film before and self-healing DOI : https://doi.org/10.1186/s42825-020-0018-4 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-0018-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37329
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