[article]
| Titre : |
Studies on the effect of structural parameters on the properties of polysiloxaneurethane dispersions and coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
J. Kozakiewicz, Auteur ; A. Koncka-Foland, Auteur ; J. Skarzynski, Auteur ; J. W. Sobczak, Auteur ; M. Zielecka, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 31-39 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Adhésion
Copolymère uréthane acrylique
Dispersions et suspensions
Dureté (matériaux)
Résistance à l'humidité:Résistance à l'eau
Résistance chimique
Revêtements -- Analyse
Revêtements -- Propriétés mécaniques
Revêtements organiques
Transition vitreuse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The results of studies on the effect of introducing double bonds and siloxane segments to the polyurethaneurea chain on the properties of polyurethane and polyurethane-acrylic/styrene dispersions and coatings are presented. In order to investigate that effect a 23 factorial experiment was designed and conducted. Several properties of dispersions, coatings and films were determined, including,inter alia, particle size, stability, and MFFT (minimum film-forming temperatures) of dispersions, hardness, resistance to water and solvents, adhesion of coatings and mechanical properties, and the glass-transition temperature (Tg) of films. Properties of coatings and films subjected to additional curing were also investigated. Analysing the results of the factorial experiment helped to better understand the mutual effect of several factors on the properties of the investigated materials. ESCA (electron spectroscopy for chemical analysis) and DCA (dynamic contact angle) studies of the surface properties of the coatings were also carried out. |
| Note de contenu : |
- EXPERIMENTAL : Dispersion synthesis - Formation of coatings and films - Testing of dispersons, coatings and films - Testing of surface properties of coatings - Design of factorial - Analysis of factorial experiment results - Effect of polymer structure - related factors (XI, X2 and X3) on the properties of polysiloxane urethane-acrlic/styrene dispersions - Effect of polymer structure - related factors (X1, X2 and X3) on the properties of films made from polysiloxane urethane-acrylic/styrene dispersions - Effect of structural parameters and of additional curing by a curing (polyaziridine) and by UV on the surface properties of coatings made from polysiloxane urethane and polysiloxane urethane-acrylic/styrene dispersions
- Table 1 : Selected results of properties of dispersions, coatings and films determined for products of single experiments that constituted the factorial experiment
- Table 2 : Effect of additional curing on surface properties of coatings prepared from starting polysiloxaneurethane dispersion (DPU-PJ 441) and polysiloxaneurethaneacrylic~styrene dispersion (PUM 442) obtained from DPU-PJ 441 after polymerisation of acrylic~styrene monomers in it - results of ESCA analysis (Si/N atoms ratio) and DCA determination of the coatings (ACA = advancing contact angle, RCA = receding contact angle)
- Table 3 : Effect of distance from the coating surface on siloxane segments content (Si/N ratio) in the polymer determined by ESCA for coatings obtained from polysiloxaneurethane (DPU-PJ 441) and polysiloxaneurethane-acryliclstyrene (PUM 442) dispersions |
| DOI : |
10.1007/BF02699612 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/BF02699612.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5393 |
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B1 (03/2006) . - p. 31-39
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