Calcium tripolyphosphate / V. F. Vetere in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 73, N° 917 (06/2001)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 73, N° 917 (06/2001) . - p. 57-63 Titre : Calcium tripolyphosphate : An anticorrosive pigment for paint Type de document : texte imprimé Auteurs : V. F. Vetere, Auteur ; Beatriz del Amo, Auteur ; R. Romagnoli, Auteur ; C. Deyà, Auteur Année de publication : 2001 Article en page(s) : p. 57-63 Note générale : Bibliogr. Langues : Américain (ame) Tags : Matériau  revêtement  Peinture  anticorrosion  Protection  corrosion  Pigment  minéral  Calcium  Polyphosphate  Essai  vieillissement  accéléré  Corrosion  électrochimique Index. décimale : 667.9 Revêtements et enduits Résumé : The objective of this work was to evaluate the performance of calcium tripolyphosphate in anticorrosive paints. Its anticorrosive properties were studied in pigment suspensions and in solvent-borne paints with 10% and 30% of the pigment by volume and a pigment volume concentration/critical pigment volume concentration (PVC/ CPVC) equal to 0.8. The behavior of paints formulated with epoxy and alkyd resins was assessed by accelerated (salt spray cabinet and humidity chamber) and electrochemical tests (corrosion potential, ionic resistance, and polarization resistance). Calcium tripolyphosphate was proven to inhibit steel corrosion when incorporated in a paint film. Good protection was achieved employing only 10% by volume of the pigment, instead of 30%, as was suggested in the case of phosphates. The anticorrosion protection afforded by alkyd paints was impaired when the pigment content was increased. Epoxy paints seemed to be less sensitive to the pigment content. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5734 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001225	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Improvement of anticorrosive performance of phosphate-based alkyd paints with suitable additives / G. Blustein in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 2 (03/2011)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 2 (03/2011) . - p. 171-181 Titre : Improvement of anticorrosive performance of phosphate-based alkyd paints with suitable additives Type de document : texte imprimé Auteurs : G. Blustein, Auteur ; C. Deyà, Auteur ; R. Romagnoli, Auteur ; A. R. di Sarli, Auteur ; Beatriz del Amo, Auteur Année de publication : 2011 Article en page(s) : p. 171-181 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Additifs Anticorrosifs Electrochimie Phosphates Pigments inorganiques Revêtements -- Additifs:Peinture -- Additifs Spectroscopie d'impédance électrochimique Index. décimale : 667.9 Revêtements et enduits Résumé : The purpose of this investigation was focused on reducing the content of zinc phosphate in anticorrosive paints by means of the incorporation of low quantities of selected soluble corrosion inhibitors. The article describes the anticorrosive behavior of alkyd paints containing reduced levels of zinc phosphate, zinc oxide, and some soluble compounds used as additives (e.g., sodium polyphosphate, sodium phosphate, and sodium benzoate). Anticorrosive solventborne alkyd paints were formulated with a zinc phosphate content of 10% by volume (v/v) with respect to the total pigment concentration. In all cases, the PVC/CPVC (pigment volume concentration/critical pigment volume concentration) ratio was 0.8. Experimental paints, applied on sandblasted SAE 1010 panels, were evaluated by accelerated tests (salt spray cabinet) and electrochemical measurements (electrochemical impedance spectroscopy, EIS). The results show that the additions of small amounts of soluble corrosion inhibitors to low content zinc phosphate paint formulations enhance their performance in a very remarkable way. Perhaps, the most outstanding feature is that the employment of soluble additives allowed the reduction of the zinc phosphate content with concomitant savings. Note de contenu : - EXPERIMENTAL SECTION : Composition manufacture, and application of paints - Anticorrosive performance evaluation of paint through accelerated tests (electrochemical tests) - RESULTS AND DISCUSSION : Salt spray test - Electrochemical impedance spectroscopy (equivalent circuits). DOI : 10.1007/s11998-010-9289-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9289-7.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11359 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
012999	-	Périodique	Bibliothèque principale	Documentaires	Disponible

A new pigment for smart anticorrosive coatings / C. Deyà in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 4, N° 2 (06/2007)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 4, N° 2 (06/2007) . - p. 167-175 Titre : A new pigment for smart anticorrosive coatings Type de document : texte imprimé Auteurs : C. Deyà, Auteur ; R. Romagnoli, Auteur ; Beatriz del Amo, Auteur Année de publication : 2007 Article en page(s) : p. 167-175 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique. L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1. C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple. Anticorrosifs Anticorrosion Corrosion électrochimique Essais accélérés (technologie) Phosphate de zinc Pigments inorganiques Revêtements:Peinture Zéolites Index. décimale : 667.9 Revêtements et enduits Résumé : The purpose of this paper was to evaluate the performance of a modified zeolite as an anticorrosive pigment for paints. A procedure to prepare the pigment was outlined and its anticorrosive properties assessed following the electrochemical behavior of a steel electrode in pigment suspension. In a second stage, alkyd paints were formulated employing different anticorrosive pigments: (1) 30% by volume (v/v) of the modified zeolitic rock, (2) 10% (v/v) of zinc phosphate, and (3) a mixture of 10% (v/v) zinc phosphate plus 20% (v/v) of the modified zeolitic rock. In every case, percentages were referred to the total pigment content. Titanium dioxide, zinc oxide, and barium sulfate were incorporated to complete the pigment formula. The pigment volume concentration/ critical pigment volume concentration (PVC/CPVC) ratio was 0.8. The performance of the resulting anticorrosive paints was assessed by accelerated (salt spray and humidity chambers) tests and electrochemical (corrosion potential, ionic resistance, and polarization resistance) essays. It was demonstrated that the modified zeolite is effective in protecting steel from corrosion when it is used in combination with zinc phosphate. There exists a synergism between the modified zeolite and zinc phosphate that allows the zinc phosphate content in anticorrosive paints to be reduced. DOI : 10.1007/s11998-007-9021-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-007-9021-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3658 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
008269	-	Périodique	Bibliothèque principale	Documentaires	Disponible

"Quebracho" tannin derivative and boosters biocides for new antifouling formulations / N. Belloti in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 5 (09/2012)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 5 (09/2012) . - p. 551-559 Titre : "Quebracho" tannin derivative and boosters biocides for new antifouling formulations Type de document : texte imprimé Auteurs : N. Belloti, Auteur ; C. Deyà, Auteur ; Beatriz del Amo, Auteur ; R. Romagnoli, Auteur Année de publication : 2012 Article en page(s) : p. 551-559 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens Composites Revêtements antisalissures:Peinture antisalissures Revêtements:Peinture Tanins Index. décimale : 667.9 Revêtements et enduits Résumé : The growth of fouling communities on ships’ hulls causes economic losses due to increased fuel consumption and to the deterioration of the metallic substrate by corrosion. Antifouling paints are formulated to avoid the settlement of these organisms and may contain biocides as active compounds. The objective of this research was to evaluate the antifouling performance of paints formulated with a “quebracho” tannin derivative (zinc “tannate”) and “boosters” (secondary biocides). The “boosters” used in this study were bismuth lactate, a zeolite exchanged with silver cations, and the same zeolite modified with silver chloride. Bioassays with “boosters” solutions were carried out employing Artemia persimilis. Soluble matrix antifouling paints were formulated and their action was assessed in a natural sea water environment. Results showed that the bismuth lactate resulted in a coating with almost triple service life of the antifouling paints with zinc “tannate.” Paints formulated with the silver composites behaved slightly better than the control paint. Note de contenu : - Pigment and "boosters" preparation and characterization - Bioassays - Formulation, preparation, and application of the antifouling paints - Tests in sea water environment DOI : 10.1007/s11998-012-9403-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-012-9403-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16026 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
14190	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Zinc hypophosphite : a suitable additive for anticorrosive paints to promote pigments synergism / C. Deyà in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 3 (09/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 3 (09/2009) . - p. 369-376 Titre : Zinc hypophosphite : a suitable additive for anticorrosive paints to promote pigments synergism Type de document : texte imprimé Auteurs : C. Deyà, Auteur ; G. Blustein, Auteur ; R. Romagnoli, Auteur ; Beatriz del Amo, Auteur Année de publication : 2009 Article en page(s) : p. 369-376 Note générale : Bibliogr. Langues : Américain (ame) Tags : Anticorrosive  paints  Electrochemical  tests  Phosphate  pigments  Zinc  hypophosphite Index. décimale : 667.9 Revêtements et enduits Résumé : In this investigation, the synergism promoted by zinc hypophosphite in an anticorrosive pigment mixture is reported. This paper describes the anticorrosive behavior of a commercial pigment mixture containing zinc hypophosphite, reduced levels of zinc phosphate, and zinc oxide. The anticorrosive performance of the pigment mixture was assessed by electrochemical techniques (corrosion potential and linear polarization measurements) employing pigment suspensions. The behavior of each separate component of the mixture was also studied in the same way. The nature of the protective layer was investigated by scanning electron microscopy (SEM). In a second stage, the anticorrosive properties of the pigment were assessed by incorporating it into alkyd and epoxy paints that were evaluated by accelerated (salt spray and humidity tests) and electrochemical measurements. Experimental results showed that improved anticorrosion protection is achieved in paints with reduced zinc phosphate contents as a consequence of the synergistic interaction between zinc hypophosphite and the other components of the pigment mixture. DOI : 10.1007/s11998-008-9147-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9147-z.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6117 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
011503	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 5 / 5)