| Titre : |
Preparation and properties of matting waterborne polyurethane with polybutadiene |
| Type de document : |
texte imprimé |
| Auteurs : |
Ma Xingyuan, Auteur ; Zhang Mingrui, Auteur ; Liu Shuai, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 241-246 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Agent mattant
Caractérisation
Cuir
Emulsions -- Stabilité
Essais (technologie)
Humidité -- Absorption:Eau -- Absorption
Polybutadiène
Polybutylène téréphtalate
Polymères en émulsion
Polyuréthanes
Traîtements de surface
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
A matting waterborne polyurethane (MWPU) emulsion was prepared using polybutadiene diol (HTPB), polybutylene adipate diol (PBA) and isophorone diisocyanate (IPDI) as the main raw materials, dimethylolpropionic acid (DMPA) as a hydrophilic chain extender and ethylene diamine as a post chain extender, this was applied to the surface treatment of the leather. The surface microstructure of the MWPU film was studied by SEM. The results showed that when the content of HTPB increased, the particle size of MWPU emulsion increased, the stability decreased, the mechanical properties and surface roughness of MWPU film increased, the elongation at break, water absorption and light transmittance decreased. Combined with the matting effect, the gloss of the MWPU film was as low as 23GU, and the surface particles of the film were more obvious. The folding fastness was free from cracking, and the abrasion resistance could reach 154 circles [rubs], which meets the testing standard of leather. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURE : Experimental materials and instruments - Preparation of MWPU emulsion - Preparation of MWPU film - Effect of HTPB content on MWPU performance - Preparation of matting waterborne surface treatment agent - Characterisation and test methods
- RESULTS AND DISCUSSIONS : Effect of HTPB content on the appearance and stability of MWPU emulsion - Effect of HTPB content on water absorption rate of MWPU film - Effect of HTPB content on particle size of MWPU emulsion - Effect of HTPB content on light transmittance of MWPU film - SEM analysis - Surface treatment test results of MWPU film on leather |
| En ligne : |
https://drive.google.com/file/d/1a7ysIBvAylOjF7xzoza9B0FDXMN8dg4j/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32998 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 103, N° 5 (09-10/2019) . - p. 241-246
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