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Effect of plasticizer on the thermal, mechanical, and anticorrosion properties of an epoxy primer / M. T. Rodriguez in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 2, N° 7 (07/2005)
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Titre : Effect of plasticizer on the thermal, mechanical, and anticorrosion properties of an epoxy primer Type de document : texte imprimé Auteurs : M. T. Rodriguez, Auteur ; Jose Javier Gracenea, Auteur ; Julio José Suay, Auteur ; R. Cabello, Auteur ; S. J. Garcia, Auteur Année de publication : 2005 Article en page(s) : p. 557-564 Note générale : Bibliogr. Langues : Américain (ame) Tags : Phtalique acide ester benzyle butyle Additif Etude expérimentale Corrosion sel Résistance corrosion Propriété dynamomécanique Optimisation Diester Relation formulation propriété Epoxyde résine Peinture primaire anticorrosion mécanique thermique Plastifiant Index. décimale : 667.9 Revêtements et enduits Résumé : The influence of the glass transition temperature and the mechanical and anticorrosion properties of factors such as the amount of plasticizer added to an epoxy primer were investigated by DSC (differential scanning calorimeter), DMA (dynamic mechanical analysis), stress-strain tests, salt fog spray tests, accelerated tests, and electrochemical tests. The addition of plasticizer results in a decrease in the glass transition temperature and a change in the mechanical properties. Different tests were carried out to the optimum percentage of plasticizer content (1.5-3% weight ratio to epoxy resin) required to obtain the maximum anticorrosion performance of the epoxy primer. These changes are explained by the structural-kinetic effect exerted by the plasticizer on the chemical crosslinking in the course of the epoxy network synthesis and the increase in the excess free volume. DOI : 10.1007/s11998-005-0015-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-005-0015-9.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3803
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 2, N° 7 (07/2005) . - p. 557-564[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 002327 - Périodique Bibliothèque principale Documentaires Disponible Effects of model coal tar components on adhesion strength of polyurethane coating on steel plate / Naoki Yokoyama in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 2, N° 6 (04/2005)
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Titre : Effects of model coal tar components on adhesion strength of polyurethane coating on steel plate Type de document : texte imprimé Auteurs : Naoki Yokoyama, Auteur ; Kenichi Fujino, Auteur Année de publication : 2005 Article en page(s) : p. 445-451 Note générale : Bibliogr. Langues : Américain (ame) Tags : Propriété surface rhéologique mécanique Etude expérimentale Corrosion sel Résistance corrosion dynamomécanique traction Adhésivité Composé aromatique polycyclique Goudron houille Additif anticorrosion Relation formulation propriété Acier Couche protectrice Uréthanne polymère Matériau revêtement Index. décimale : 667.9 Revêtements et enduits Résumé : In order to study the effects of coal tar components on the adhesion strength of a heavy duty anticorrosive coating formed with tar-urethane resin on a steel plate, polyurethane coatings that were compounded with 15 kinds of polycyclic aromatic compounds as model coal tar components were prepared. In the model coal tar components, naphthalene, quinoline, 2-naphthol, and phenanthrene showed good compatibility with polyurethane. To test their heavy duty anticorrosive properties, tensile adhesion strength of the cured coatings prepared with the compatible model coal tar components was measured, and the change in tensile adhesion strength as a function of time during salt-water spray treatment was measured. We found that the systems compounded with naphthalene, 2-naphthol, and phenanthrene showed good properties in an ordinary state for adhesion strength. However, only the system with 2-naphthol was found to have good properties in the change of tensile adhesion strength as a function of time during salt-water spray treatment. The curing time of the system with 2-naphthol was slower than that of the others, i.e., we found an inverse proportion between curing speed and adhesion durability. We also measured the dynamic viscoelasticity of cured coatings. We found that a tan delta curve of the system with 2-naphthol shifted towards a low temperature side and the tan delta at the temperature at which adhesion strength was measured was larger than that of the others. We hypothesized that the reason for the tan delta shift was a result of the decrease in crosslinking density because 2-naphthol partially capped the isocyanate group. Considering these results, we hypothesized that one of the reasons why the adhesion properties of the system with 2-naphthol had improved was due to the increase of tan delta. DOI : 10.1007/BF02733887 En ligne : https://link.springer.com/content/pdf/10.1007%2FBF02733887.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3839
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Code-barres Cote Support Localisation Section Disponibilité 001483 - Périodique Bibliothèque principale Documentaires Disponible Study of polyester-based coil coatings by using thermal analysis methods / M. Korhonen in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 75, N° 937 (02/2003)
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Titre : Study of polyester-based coil coatings by using thermal analysis methods Type de document : texte imprimé Auteurs : M. Korhonen, Auteur ; P. Starck, Auteur ; B. Löfgren, Auteur ; P. Mikkilä, Auteur ; O. Hormi, Auteur Année de publication : 2003 Article en page(s) : p. 67-73 Note générale : Bibliogr. Langues : Américain (ame) Tags : Propriété dynamomécanique Calorimétrie différentielle balayage rhéologique Viscoélasticité Etude expérimentale Analyse thermique Ester polymère Vernis Durcissement Coil coating Peinture Matériau revêtement Index. décimale : 667.9 Revêtements et enduits Résumé : The curing of polyester-based clearcoats has been studied by using thermal analysis methods. Polyester resins are used as raw materials for coil coatings. The aim of this work was to study the viscoelastic properties of coil coatings. Differential scanning calorimetry (DSC) was found to be useful in curing studies of lacquers, for example, to predict conversion as a function of cure time or cure temperature. Dynamic mechanical analysis (DMA) was used to determine the gel times of some clearcoats. The DSC measurements were done with different apparatus and software programs. This study concentrates on the use of these modern techniques to predict the curing and correlation of the results. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5608
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Code-barres Cote Support Localisation Section Disponibilité 000562 - Périodique Bibliothèque principale Documentaires Disponible