| Titre : |
Thermal sensitive agents for making stimuli responsive leathers |
| Type de document : |
texte imprimé |
| Auteurs : |
Jaya Prakash Alla, Auteur ; Nishad Fathima Nishter, Auteur ; Jonnalagadda Raghava Rao, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 459-469 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse spectrale
Caractérisation
Colorimétrie
Cuirs et peaux -- Propriétés organoleptiques
Cuirs et peaux -- Propriétés physiques
Eaux usées -- Analyse
Granulométrie
Matériaux intelligents
Matériaux sensibles aux stimulis
Polyacryliques
Syntans
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Herein, we report the synthesis and application of a smart polymeric acrylic syntan (synthetic tanning material), which can respond to temperature and pH. Behavior of polymer at different pH (1-10) at room temperature (28°C) was studied. Also interactions with collagen were ascertained in order to understand the polymers’ response towards secondary structures of collagen. Leather made using the experimental syntan demonstrated higher temperature resistance of 3±0.5°C compared to control syntan treated leathers (1±0.5°C) when exposed to heat under artificial simulation. Experimental leathers exhibited better strength and organoleptic properties. These smart leathers find its application in extreme climatic conditions of heat or cold. |
| Note de contenu : |
- EXPERIMENTAL SECTION : Materials - Preparation of thermoresponsive acrylic syntan - Collagen polymer interaction studies - Characterization of thermoresponsive syntan - Leather processing and syntan application - Scanning Electron Microscopy (SEM) study of polymer treated leathers - Thermal analysis - Physical strength and organoleptic properties of leather - Effluent parameters
- RESULTS AND DISCUSSION : Characterization of thermoresponsive syntan - Clouding behaviour of thermoresponsive polymer - Polymer interaction with collagen - Application of syntan in leather making - Infrared thermal imaging of syntan treated leathers - Scanning electron microscopy of leathers - Physical testing of leather - Porosity analysis of leather - Color measurement of leather - Organoleptic properties - Wastewater analysis
- Fig. 1 : Particle size distribution of control and experiment (MTP02)
- Fig. 2 : Clouding behaviour of polymer at room temperature
- Fig. 3 : Fourier transform infrated spectroscopy analysis of collagen and collagen-polymer (CP) samples
- Fig. 4 : Circular dichroism spectra for understanding stability of collagen-polymer interactions
- Fig. 5 : Digital images of a) control, c) experimenta, infra-red images of b), control d) experimental syntan treated leather
- Fig. 6 : Scanning electron microscopy images showing grain surface of a) control, b) experimental leathers at 50X, cross section images of c) control and d) experiment at 150x magnification
- Table 1 : Clouding behaviour of the polymer at different pH
- Table 2 : Temperature difference exhibited by control and experimental leathers
- Table 3 : Physical strength properties of control and experimental syntan treated leather
- Table 4 : Color values of control and experimental leathers
- Table 5 : Analysis of waste water |
| DOI : |
https://doi.org/10.34314/jalca.v115i12.4203 |
| En ligne : |
https://drive.google.com/file/d/1a7TMFMOQXQr-7hriJSccnrihBn-0sjL_/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34999 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXV, N° 12 (12/2020) . - p. 459-469
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