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Markets for industrial coatings in Europe - Past, present and future / Franco Busato in SURFACE COATINGS INTERNATIONAL, Vol. 79, N° 9 (09/1996)

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 79, N° 9 (09/1996) . - p. 395-398 Titre : Markets for industrial coatings in Europe - Past, present and future Type de document : texte imprimé Auteurs : Franco Busato, Auteur Année de publication : 1996 Article en page(s) : p. 395-398 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Industrie  peinture  vernis'  Marché  Europe  Utilisation  'Peinture  eau'  haute  teneur  solide'  poudre' Index. décimale : 667.9 Revêtements et enduits Note de contenu : - TRENDS IN INDUSTRIAL PAINT TECHNOLOGIES : Use of water-borne systems - Use of powders - Use of radiation-cureables - Use of high solids paints - Novel application techniques Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17086 [article]

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Surface properties of silicone release coatings / M. J. Owen in SURFACE COATINGS INTERNATIONAL, Vol. 79, N° 9 (09/1996)

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 79, N° 9 (09/1996) . - p. 400-403 Titre : Surface properties of silicone release coatings Type de document : texte imprimé Auteurs : M. J. Owen, Auteur Année de publication : 1996 Article en page(s) : p. 400-403 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Matériau  revêtement'  Antiadhérence  'Siloxane(diméthyl)  polymère'  'Propriété  surface'  'Structure  'Energie  'Polymère  silicium' Index. décimale : 667.9 Revêtements et enduits Résumé : One of the most familiar features of silicone polymers is their excellent release behaviour, they are generally difficult to wet and most materials adhere poorly to them. This behaviour is usually attributed to their unusually low surface tension which is itself ascribed to two fundamental characteristics : the low intermolecular forces between the organic pendent groups along the polymer chain, and the unique flexibility of the siloxane backbone. Because of the extreme localisation of the fields of force in covalently bonded groups, the pendent methyl groups on polydimethylsiloxane ( PDMS ), the most common silicone polymer, behave as an array of close-packed methyl groups with little direct effect from the siloxane backbone despite its strong polarity. The backbone has a substantial effect on the ease with which the pendent group can be arrayed in the surface. The more flexible the backbone, the more readily will the lowest surface energy configuration be adopted. In this overly simple view of the roles of backbone and the pendent group, PDMS emerges as a favourable case of very low intermolecular force methyl groups along the most flexible polymer backbone known. Note de contenu : - Surface structure - Surface energetics - Surface composition Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17097 [article]

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Tailoring dyes for ink-jet applications / W. Bauer in SURFACE COATINGS INTERNATIONAL, Vol. 79, N° 9 (09/1996)

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 79, N° 9 (09/1996) . - P. 407-410 Titre : Tailoring dyes for ink-jet applications Type de document : texte imprimé Auteurs : W. Bauer, Auteur ; J. Ritter, Auteur ; A. G. Hoechst, Auteur ; A. G. Cassella, Auteur Année de publication : 1996 Article en page(s) : P. 407-410 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Encre  Formulation  'Colorant  organique'  'Impression  jet  encre' Index. décimale : 667.4 Encres Résumé : During the last decade the development of non-impact printing technologies including laser, thermal and ink jet printing has made considerable progress. Among these reprographic methods, ink-jet devices have a high market potential due to their colour capability. Ink-jet applications include monochromatic and colour office printers, photographic-imaging systems and industrial printers for marking, coding and addressing. There are two basic means of projecting ink drops onto surfaces: continuous and drop-on-demand ink-jet. Together with hardware design and paper quality, dyes in ink formulations play an important role in the operation of ink-jet systems. The properties required of water-soluble ink-jet dyes, which are summarised in Figure 1, constitute some of the most important factors that contribute to the ultimate print quality.Significant for the primary colours yellow, magenta and cyan, utilised in subtractive colour system are peak wavelength, narrow absorption curves and the absence of secondary absorptions.For monochromatic printers and systems using the four-colour technology a neutral black is needed additionally. The innovations which are necessary to meet the specific requirements for dyes in ink-jet systems are reflected by the great number of patent applications. The subjects of these patent applications demonstrate that i the first phases of development, conventional dyes for the paper and textile industries were selected. In the second phase, starting in 1985, the development of dyes with improved properties for ink-jet applicationshas been observed. However, by developing and producing new dyes, development and the costs of patenting have to be considered as well as the prospective volume of dyes and the life cycle of the printer. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17098 [article]

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Silicones additives for aqueous coating systems / Karl-Heinz Käsler in SURFACE COATINGS INTERNATIONAL, Vol. 79, N° 9 (09/1996)

[article]  inSURFACE COATINGS INTERNATIONAL > Vol. 79, N° 9 (09/1996) . - p. 411-414 Titre : Silicones additives for aqueous coating systems Type de document : texte imprimé Auteurs : Karl-Heinz Käsler, Auteur Année de publication : 1996 Article en page(s) : p. 411-414 Langues : Anglais (eng) Catégories : Mouillage (chimie des surfaces) Revêtements -- Additifs Revêtements en phase aqueuse:Peinture en phase aqueuse Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Surfactants Index. décimale : 667.9 Revêtements et enduits Résumé : The development and use of aqueous coatings have increased considerably in recent years. The range of applications has been widened to include clear and high-gloss systems as, for exemple, automotive finishing coats, industrial paints, plastics coating and furniture finishes. However, these applications have a fairly large number of problems, especially as far as optical properties are concerned. The flow properties are disrupted by poor substrate wetting, and edge thinning. The film surface is uneven. Pinholes form in the film surface. Foam forms, resulting in unattractive structures or holes. These problems are not unknown in conventional solvent-borne systems. However, they can often be overcome by using suitable combinations of different solvents, for exemple, polar and non-polar solvents. This option is not available for water-borne systems or, at least, only to a limited extent through the addition of co-solvents. Any difficulties which arise must be eliminated through the use of suitable additives. Our work has shown that one additive alone is often inadequate. Just as solvent combinations are used in solvent-borne systems, water-borne systems require a selected combination of additives such as fluorosurfactants and polysiloxanes or wetting agents and polysiloxanes. Although this paper concentrates largely on the polysiloxanes, there is some discussion of suitable combinations. Note de contenu : - TEST PRODUCTS : MODIFIED POLYSILOXANES - APPLICATIONS TESTING - FLOW : Defoaming - Interaction of various additives Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17104 [article]

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