[article]
| Titre : |
Influence of finishing on the flammability of leather |
| Type de document : |
texte imprimé |
| Auteurs : |
Gong Ying, Auteur ; Wuyong Chen, Auteur ; Chen Jiping, Auteur ; Gu Haibin, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 208-211 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Cuir d'ameublement
Cuirs et peaux -- Finition
Essais de comportement au feu
Inflammabilité
Laque et laquage
Nitrocellulose
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
Polyuréthanes
Résistance à la flamme
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Four common film-forming materials, including polyurethane (PU), polyacrylate(PA), nitrocellulose lacquer (NC) and protein, were used to coat leather. The flammability of the leather was evaluated by the vertical flame test (ALCA Method E 50) and oxygen index (OI) test method (ASTM D 2863-77). The results indicate that all of the above film-forming materials can enhance the flame-resistance of the leather. According to the OI values of the finished leathers the performance of film-forming materials on leather can be ranked as : PU>Protein>PA>NC. The results of flammability tests show that pigmented finishes may improve the flame-resistance of the leather. The effect of different application levels of film-forming materials on the flammability was examined. The results indicate that the OI values decreased with the increasing levels of PA and PU, and the other values, i.e. afterglow, after-flame, char length and weight loss, etc. rose. The variance of PU was larger than for PA.
The afterglow and after-flame of the leather, finished with a 'Sofa Leather Finishing Formula' (Clariant Chemicals Ltd, China), were much higher than for the crust indicating that the flame-resistance of this finished leather is worse than the crust. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Materials - Preparation of finished leather samples - Sampling for oxygen index test and vertical flame test - Vertical flame test - Oxygen Index test
- RESULTS AND DISCUSSION : Flammability of leathers finished with different film-forming materials - Effect of the dosage of film-forming materials on the flame-resistance of leather - Effect of the dosage of film-forming materials on the flame-resistance of leather - Influence of pigment finishing on the flame-resistance of leather - Influence of a complete commercial finishing coat on the flame-resistance of leather
- Table 1 : Properties of the four film-forming materials
- Table 2 : Sofa leather finishing formula
- Table 3 : Flammability of leathers finished with various film-forming materials (20g/m2)
- Table 4 : Oxygen Index test results of the completely finished leather and the control |
| En ligne : |
https://drive.google.com/file/d/1yqk-1bssflKfGSUCQZ_8VHkW2zPAUEGi/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39014 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 91, N° 5 (09-10/2007) . - p. 208-211
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Influence of finishing on the flammability of leather in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 5 (09-10/2007)
