| Titre : |
Studies on the dyeability and dyeing mechanism of polyurethane/clay nanocomposite filaments with acid, basic and reactive dyes |
| Type de document : |
texte imprimé |
| Auteurs : |
Gude Venkatareddy Raghunath Reddy, Auteur ; Mangala Joshi, Auteur ; Bapan Adak, Auteur ; Bansi Lal Deopura, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 117-125 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Argile
Colorants
Dispersions et suspensions
Fibres textiles synthétiques -- Détérioration
Filature
Matériaux hybrides
Polyuréthanes
Teinture -- Fibres textiles synthétiques
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Polyurethane/clay nanocomposite (PUCN) filaments were spun by the dry‐jet‐wet spinning method. To prepare the PUCN filaments, 0.25, 0.50 and 1% of nanoclay on the weight of polyurethane were incorporated in the polyurethane dope. The interaction between clay and polyurethane was analysed by attenuated total reflectance–Fourier Transform‐infrared (ATR‐FTIR) spectroscopy. The structure and morphology of the PUCN filaments were analysed by wide‐angle X‐ray diffraction (WAXD) and transmission electron microscopy (TEM). Both the neat polyurethane and the PUCN filaments were dyed with different acid, basic and reactive dyes. The neat polyurethane filaments exhibited poor dyeability with all three classes of dyes. By contrast, the PUCN filaments showed a significantly higher dye uptake with all of the dyes used. Furthermore, the dye uptake increased significantly as the percentage of clay in the filaments increased, as indicated by the increase in the K/S values of the dyed filaments. The dyeing mechanism with all three dyes, as well as the increased dyeability of the PUNC filaments in comparison to those of the neat polyurethane filaments, was discussed. |
| Note de contenu : |
- EXPERIMENTAL : Materials and methods - Preparation of PUCN filaments - Dyeing of the filaments - After treatment of the dyed filaments - Characterisation
- RESULTS AND DISCUSSION : ATR-FTIR analysis - Structure of PUCN filaments - Dispersion of organoclay in PU matrix - Dyeability studies |
| DOI : |
10.1111/cote.12332 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12332 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30316 |
in COLORATION TECHNOLOGY > Vol. 134, N° 2 (04/2018) . - p. 117-125
Aller sur edunet
Accueil
Studies on the dyeability and dyeing mechanism of polyurethane/clay nanocomposite filaments with acid, basic and reactive dyes in COLORATION TECHNOLOGY, Vol. 134, N° 2 (04/2018)
