Steady rheological behaviors of UV-curable waterborne hyperbranched polyurethane acrylate dispersions / Wenhua Yin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 1 (01/2013)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 1 (01/2013) . - p. 57-64 Titre : Steady rheological behaviors of UV-curable waterborne hyperbranched polyurethane acrylate dispersions Type de document : texte imprimé Auteurs : Wenhua Yin, Auteur ; Xingrong Zeng, Auteur ; Hongqiang Li, Auteur ; Xiaodan Lin, Auteur ; Biye Ren, Auteur ; Zhen Tong, Auteur Année de publication : 2013 Article en page(s) : p. 57-64 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dispersions et suspensions Polyacrylates Polymères ramifiés Polyuréthanes Revêtements en phase aqueuse:Peinture en phase aqueuse Rhéologie Index. décimale : 667.9 Revêtements et enduits Résumé : A rotational rheometer was used to investigate the steady rheological behaviors of UV-curable waterborne hyperbranched polyurethane acrylate dispersions (WHBPUADs). The flow curves of WHBPUADs were fitted mathematically using the Cross model. The effects of many factors including solid content, concentration of hydrophilic groups, and degree of neutralization on the rheological behaviors were studied and discussed. It was found that the viscosity of WHBPUAD decreased with increasing shear rate, indicating that WHBPUAD was pseudoplastic. On the other hand, at the same shear rate, the viscosity of WHBPUAD increased with increasing solid content and degree of neutralization but decreased with increasing concentration of hydrophilic groups. The Cross model could describe the flow curve of WHBPUAD accurately, with square of correlation coefficient (R 2) above 0.9. Moreover, most of the zero-shear viscosity values (? 0) obtained by the Cross model were located in the range of 0.2–10 Pa·s, which could fully meet the practical application requirement. Note de contenu : - EXPERIMENTAL : Materials - Characterization (particle size measurement - Rheological measurements) - RESULTS AND DISCUSSION : Effect of solid content - Effect of concentration of hydrophilic groups - Effect of degree of neutralization DOI : 10.1007/s11998-012-9432-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9432-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17472 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
14636	-	Périodique	Bibliothèque principale	Documentaires	Disponible
15124	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)