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Application of amphoteric polymers in the process of leather post-tanning / Xuechuan Wang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
[article]
Titre : Application of amphoteric polymers in the process of leather post-tanning Type de document : texte imprimé Auteurs : Xuechuan Wang, Auteur ; Sun Siwei, Auteur ; Xing Zhu, Auteur ; Guo Peiying, Auteur ; Liu Xinhua, Auteur ; Chunlin Liu, Auteur ; Meng Lei, Auteur Année de publication : 2021 Article en page(s) : 9 p. Langues : Anglais (eng) Catégories : Agents de tannage
Composés amphotériques
Cuirs et peaux
Polymères -- Synthèse
Post-tannageIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : With the characteristics of controllable charge and environmental friendliness, amphoteric polymers can be used in post-tanning process to solve the problems that arise during leather making and are caused by the low absorption rate of single-charge chemicals, incompatibility with new tanning methods, and complex operation process. In this review, the structure, performance, and preparation of amphoteric polymers are reported. Then, the charge change of collagen during different tanning and pH treatments is introduced. Finally, the application and development of amphoteric polymers during the post-tanning process of leather making are discussed. This review has certain guiding significance to the preparation and application of amphoteric polymers for tanning system. Note de contenu : - STRUCTURE, PROPERTIES, AND SYNTHESIS METHODS OF AMPHOTERIC POLYMERS : Structure and properties of amphoteric polymers - Synthetic methods of amphoteric polymers
- AMPHOTERIC PROPERTIES OF COLLAGEN AFTER TANNING :
- RESEARCH PROGRESS OF AMPHOTERIC POLYMER DURING POST-TANNING : Retanning agent - Fatliquoring agent - Other materials
- CONCLUSIONS AND PROSPECTS : Development of amphoteric polymers with different structures for leather making - Study on the interaction mechanism between amphoteric polymers and leather
Exploration of characterization methods - Clean application process of amphoteric materials in post-tanningPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37474
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 3 (Année 2021) . - 9 p.[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Synthesis of ionic liquid-based amphiphilic polymer surfactant and its application in leather fatliquoring / Hao Dongyan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 2 (03-04/2023)
[article]
Titre : Synthesis of ionic liquid-based amphiphilic polymer surfactant and its application in leather fatliquoring Type de document : texte imprimé Auteurs : Hao Dongyan, Auteur ; Xing Zhu, Auteur ; Hao Dongyu, Auteur ; Chao Wei, Auteur ; Hu Yujie, Auteur ; Wang Xuechuan, Auteur Année de publication : 2023 Article en page(s) : p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Croûte (cuir)On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Propriétés physiques
Cuirs et peaux de moutons
Douceur (toucher)
Emulsions
Granulométrie
Liquides ioniques
Polymères -- Synthèse
Polymères amphiphiles
Surfactants -- Synthèse
Wet-white (tannage)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In view of the environmental pollution caused by chrome tanning in current tanning processes, the development of chrome-free ecological leather manufacturing technology is an important direction for the development of the leather industry. However, the strong negative charge of chrome-free tanned leather leads to the reduction of binding sites of most anionic dyeing and finishing materials, resulting in colour fading and poor handle of the finished leather. Therefore, this paper mainly uses Nvinylimidazole, bromodecan and dimethylaminoethyl acrylate as raw materials to synthesise a ionic liquid-based amphiphilic polymer surfactant through free radical polymerisation and quaternisation and then, uses it in the fatliquoring process of a chrome-free non-metallic tanned green leather. The structure and morphology of the fatliquored wet-white leather were studied by SEM and the ultra depth of a field microscope, and the softness and physical and mechanical properties of the fatliquored leather were tested. The results showed that the collagen fibres were loosely distributed and the gap between the collagen fibres was larger after fatliquoring,and the softness and physical and mechanical properties of the fatliquored leather were improved. Note de contenu : - EXPERIMENTAL SECTION : Materials - Methods - Characterisation
- RESULTS AND DISCUSSION : FTIR analysis - 1H-NMR analysis - Surface tension - Emulsion particle size test - Physical property testing of crust leather - SEM observations - Ultra depth of field microscope
- Table 1 : Fatliquoring process for sheep wet-white leather tanned by F-90
- Table 2 : Test results of physical properties of crust leatherEn ligne : https://drive.google.com/file/d/1lHYlywraBbreP7FKgn902_KBzii8LmAB/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39065
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 2 (03-04/2023) . - p.[article]Réservation
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