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Attaining durable painted plastic components / Rose Ann Ryntz in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 2, N° 5 (01/2005)
[article]
Titre : Attaining durable painted plastic components Type de document : texte imprimé Auteurs : Rose Ann Ryntz, Auteur Année de publication : 2005 Article en page(s) : p. 351-360 Note générale : Bibliogr. Langues : Américain (ame) Tags : Propriété mécanique interface Oléfine polymère Promoteur adhérence Etude expérimentale Durabilité Résistance rupture Adhésivité Relation mise en oeuvre propriété Polymère chlore dérivé halogéné Couche primaire Traitement surface Prétraitement Peinturage Procédé revêtement Matériau revêtu Propène Mélange Elastomère Caoutchouc thermoplastique Index. décimale : 667.9 Revêtements et enduits Résumé : Adhesion to thermoplastic olefin (TPO) substrates, blends of polypropylene (PP) and an elastomer, is often difficult to attain due to the low surface energy, nonpolar nature of the surface. One often specifies, therefore, that the surface of the substrate be pretreated. Pretreatment methods can vary, from oxidation of the surface, e.g., plasma or flame, to diffusion and mechanical interlocking of an applied polymer with the surface. Mechanical interlocking with the nonpolar TPO surface can be achieved through the use of an adhesion promoter, namely a chlorinated poly(olefin) (CPO). The type of CPO utilized, in addition to the types of solvents and heat treatments utilized, can substantially influence the degree of adhesion/cohesion obtained within the CPO/TPO system. This article reviews the factors influencing the adhesion/cohesion of painted TPO substrates. Heat histories, TPO molding variations, CPO types, including solvent and resin variations, and topcoat (basecoat/clearcoat) chemistries are all found to influence the adhesion/cohesion of the painted TPO assembly (herein termed composite). Once adhesion of a topcoat system to the TPO substrate is achieved, however, the durability of that system to external forces is in question. External forces acting upon the painted composite, e.g., compressive stresses, tensile stresses, and single and/or multiple impact forces, can lead to devastating consequences. Chip or impact resistance and scratch or compressive/tensile (gouge) damage resistance can be affected by the choice of topcoat chemistries utilized. Topcoat frictional behavior, tensile strengths, and surface hardness were all determined to be influential factors in providing robust damage resistance to the painted composite. DOI : 10.1007/s11998-005-0003-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-005-0003-0.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3725
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 2, N° 5 (01/2005) . - p. 351-360[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000589 - Périodique Bibliothèque principale Documentaires Disponible Influence of extender type of performance of modified lamellar zinc primers / Carlos A. Giudice in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 4 (10/2004)
[article]
Titre : Influence of extender type of performance of modified lamellar zinc primers Type de document : texte imprimé Auteurs : Carlos A. Giudice, Auteur ; A. M. Pereyra, Auteur ; J. C. Benitez, Auteur Année de publication : 2004 Article en page(s) : p. 291-304 Note générale : Bibliogr. Langues : Américain (ame) Tags : Etude expérimentale Peinture anticorrosion Résistance corrosion Relation formulation propriété Epoxyde résine Ester polymère Vinylique dérivé copolymère Caoutchouc chlore zinc primaire Protection Acier Index. décimale : 667.9 Revêtements et enduits Résumé : The objective of this work was to gain a deeper insight into the behavior of zinc primer, containing either lamellar zinc alone or lamellar zinc mixed with an extender by means of accelerated tests in salt spray (fog) chamber and a 100% relative humidity cabinet. Mica, kaolin, and synthetic calcium silicate were used as extenders. Several series of coatings were designed and manufactured employing the following binders: 20 cP chlorinated rubber, a vinyl copolymer, an unsaturated polymer, or an epoxy resin. A simultaneous analysis of the experimental data was performed taking into account that the best performance is attained at pigment volume concentration (PVC) values equal to or slightly lower than the critical one (CPVC). Results indicate that for every lamellar zinc primer, it is possible to select an extender of high oil absorption as the spacer of the zinc particles attaining both very good blistering resistance and anticorrosive performance. DOI : 10.1007/s11998-004-0031-1 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-004-0031-1.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3860
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 1, N° 4 (10/2004) . - p. 291-304[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000588 - Périodique Bibliothèque principale Documentaires Disponible A radiant history the changing face of titanium dioxide / E. Napier in SURFACE COATINGS INTERNATIONAL, Vol. 81, N° 11 (11/1998)
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Titre : A radiant history the changing face of titanium dioxide Type de document : texte imprimé Auteurs : E. Napier, Auteur ; John G. Balfour, Auteur Année de publication : 1998 Article en page(s) : p. 533-549 Langues : Anglais (eng) Tags : Titane 'Pigment blanc' Procédé Sulfate Chlore Index. décimale : 667.9 Revêtements et enduits Résumé : Titanium dioxyde has been known for over two hundred years since its discovery (by William Gregor) in the late eighteenth century. Early developments are described, and attention is paid to the changes which the commercial exploitation of the new white pigment. the challenge involved the general improvement of properties such as opacity, dispersion and durability. Currently, titanium dioxide pigments are manufactured by two processes which are described. The fondamental physical properties are compared with other white pigments and the reasons for the dominance of titanium dioxide explained. The market situation in terms of the quantities of pigment used in various market sectors is also discussed. Note de contenu : - The manufacture of titanium dioxyde pigments
- The sulphate process
- The chloride process
- Pigment coating
- Properties of titanium dioxyde pigments
- OpacityPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16726
in SURFACE COATINGS INTERNATIONAL > Vol. 81, N° 11 (11/1998) . - p. 533-549[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14297 - Périodique Bibliothèque principale Documentaires Disponible