| Titre : |
Improvement of leather flame retardancy through nano clay addition |
| Type de document : |
texte imprimé |
| Auteurs : |
Samaneh Sepehri, Auteur ; Mohammad Amani Tehran, Auteur ; Fatemeh Zeighami, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 418-427 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Argile
Cuir
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de bovins
Cuirs et peaux de chèvres
Essais dynamiques
Nanoparticules
Résistance à la traction
Stabilité thermique
Tannage
Thermogravimétrie
Wet-blue (tannage)Peau tannée au chrome (le chrome donne une couleur bleue)
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Leather is widely used in various industries including apparel, safety clothing, aircraft and automotive, due to its unique properties such as softness, air permeability, chemical resistance, high flexibility and reasonable mechanical resistance. Since leather products usually contain flammable organic compounds such as tanning, fatliquoring, dyeing and finishing materials, improvement of its flame retardancy is very important. A lot of flame retardants have been synthesized and applied to improve flame retardancy of leather. One of the best materials is nanoclay because it is easily available, environment-friendly and has a low cost. In this research, we propose a process that reduces the burning length of the leather and increases its thermal stability. For this purpose, clay nanoparticles by 1, 3, and 5 mass percent (relative to wet leather mass) were added to wet-blue bovine and goat leather under certain (temperature and time) conditions during the re-tanning process. The results of the TGA test on bovine leather samples showed that by increasing the amount of nanoclay, the thermal stability of samples was increased. SEM images prepared from the grain and cross-sections of bovine and goat leather samples showed that with a high percentage of nanoclay, particle agglomeration is partially visible. The results of the vertical flammability test also showed that the presence of clay nanoparticles reduced the burning length of leather samples. Tensile strength of bovine leather samples containing clay nanoparticles increased compared to the control sample. However, the tear strength of them did not differ significantly. |
| Note de contenu : |
- EXPERIMENTS : Materials and equipment
- PROCEDURE : a) Washing - b) Neutralization - c) Retanning - d) Fixation - e) Nano clay addition - f) Dyeing and fatliquoring - g) Washing and drying
- RESULTS AND DISCUSSION : Thermal stability - Morphology - Tensile and tear strength - Flame retardancy properties
- Table 1 : Outline formulation of process
- Table 2 : Samples description
- Table 3 : Mechanical properties of leather samples
- Table 4 : Burning length of bovine leather
- Table 5 : Burning length of goat leather |
| DOI : |
https://doi.org/10.34314/jalca.v115i11.4181 |
| En ligne : |
https://drive.google.com/file/d/1S2qwkHR7LATO84gxJoGFMvRp6wNHmAzz/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34849 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXV, N° 11 (11/2020) . - p. 418-427
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Improvement of leather flame retardancy through nano clay addition in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 11 (11/2020)
