Evaluating water transport through high solid polyurethane coating using the EIS method / F. Rezaei in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 2 (03/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 2 (03/2010) . - p. 209-217 Titre : Evaluating water transport through high solid polyurethane coating using the EIS method Type de document : texte imprimé Auteurs : F. Rezaei, Auteur ; F. Sharif, Auteur ; Ali Asghar Sarabi, Auteur ; S. M. Kasiriha, Auteur ; M. Rahmanian, Auteur ; E. Akbarinezhad, Auteur Année de publication : 2010 Article en page(s) : p. 209-217 Note générale : Bibliogr. Langues : Américain (ame) Tags : 'Canalisation  enterrée'  'Polyuréthane  haute  teneur  solides'  'Coefficient  diffusion  eau''Spectroscopie  électrochimique  impédance' Index. décimale : 667.9 Revêtements et enduits Résumé : Buried pipelines are commonly coated with high solid polyurethane to prevent corrosion. The diffusion of water through the coating plays an essential role in the performance and endurance of the coating. This study focuses on the evaluation of water diffusion through polyurethane coatings. The effects of thickness and ambient temperature on water diffusion through polyurethane, which is coated on mild steel and immersed in 3.5% (weight fraction) NaCl solution, are evaluated using electrochemical impedance spectroscopy (EIS). Experimental observations clearly indicate that the water diffusion coefficient strongly depends on service temperature and the thickness of coating. Higher temperature (lower than T g) increases water uptake of the polymer but no measurable changes were observed for the temperature change studied. EIS results show that the mechanism of corrosion does not change in the range of thicknesses and temperature investigated in this study. DOI : 10.1007/s11998-009-9173-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9173-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9067 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
012083	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Non-isothermal simulation of the film blowing process using multi-mode extended pom-pom model / S. Sarafrazi in INTERNATIONAL POLYMER PROCESSING, Vol. XXIII, N° 1 (03/2008)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXIII, N° 1 (03/2008) . - p. 30-37 Titre : Non-isothermal simulation of the film blowing process using multi-mode extended pom-pom model Type de document : texte imprimé Auteurs : S. Sarafrazi, Auteur ; F. Sharif, Auteur Année de publication : 2008 Article en page(s) : p. 30-37 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : Plastic films are largely produced using the film blowing process. Branched polymers such as LDPE are commonly used in this process to produce a variety of plastic films. In this study, recently developed eXtended Pom-Pom (XPP) model, which focuses on describing rheological behavior of branched polymers, is employed to analyze the non-isothermal flow in the film blowing process. Furthermore, the Nakamura equation for crystallization kinetics is employed to consider crystallization effects and improve prediction of the state of the stress in the film. Results of the numerical analysis show good agreement with the experimental values reported by Tas (1994) for the bubble shape and film velocity of the LDPE films. Predictions for the strain rates in machine and hoop directions which are critical for the estimation of the stress are also compared with the reported data and showed reasonably good agreement. DOI : 10.3139/217.2010 En ligne : https://drive.google.com/file/d/1WwcTXyLhP4FF-rCDlV-ePQgC4JeyQJT3/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2658 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
009860	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Structure properties and corrosion resistivity of polymeric nanocomposites coatings based on layered silicates / Davood Zaarei in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 2 (06/2008)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 5, N° 2 (06/2008) . - p. 241-249 Titre : Structure properties and corrosion resistivity of polymeric nanocomposites coatings based on layered silicates Type de document : texte imprimé Auteurs : Davood Zaarei, Auteur ; Ali Asghar Sarabi, Auteur ; F. Sharif ; Seid Mahmood Kassiriha Année de publication : 2008 Article en page(s) : p. 241-249 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion Argile Conducteurs organiques Matériaux hybrides Montmorillonite Polyacrylonitrile Silicates Index. décimale : 667.9 Revêtements et enduits Résumé : This paper reviews the recent research and development of polymeric nanocomposite coatings based on layered silicates. In the past few decades, extensive research activities have been conducted on clay minerals due to their unique layered structure, rich intercalation chemistry and availability at low cost, environmental stability, and good processability. One of the most important categories of layered silicates is nanoclays. The nanoclay is considered as reinforcement for polymers in the manufacture of low-cost, lightweight and high performance nanocomposite coatings. In this paper, we try to introduce the structure, properties, and surface modification of clay minerals. Different properties of polymer clay nanocomposite coatings consisting of different polymers are also reviewed. These coatings may consist of conductive and nonconductive polymers. The corrosion resistance of each type is discussed separately. Some novel properties can be observed from the interaction of two dissimilar chemical components at the molecular level that posses enhancements in corrosion inhibition on metallic substrates. Finally, the prospective problems of industrial usage of these materials are mentioned. DOI : 10.1007/s11998-007-9065-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9065-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3000 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
010394	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 3 / 3)