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POLYMERS PAINT COLOUR JOURNAL - PPCJ . Vol. 208, N° 4644E un mondo coloratoMention de date : 09/2018 Paru le : 24/09/2018 |
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Ajouter le résultat dans votre panierNext generation of thickeners in industrial coatings & construction systems / Rajni Gupta in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4644 (09/2018)
[article]
Titre : Next generation of thickeners in industrial coatings & construction systems Type de document : texte imprimé Auteurs : Rajni Gupta, Auteur ; James Heck, Auteur ; Yanhui Chen ; Mihai Polverejan ; David Marsh ; Wouter Ijdo ; Carlos Feito ; Elke Piron ; Rick Lin ; Tien Hsu ; Angel Lee Année de publication : 2018 Article en page(s) : p. 16-24 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colles:Adhésifs
Epaississants
Epoxydes
Formulation (Génie chimique)
Huile de ricin et constituants
Mélanges (chimie)
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
Revêtements -- Additifs
Revêtements bi-composant
Rhéologie
UrethanesIndex. décimale : 667.9 Revêtements et enduits Résumé : The rheological properties of an industrial coating, adhesive or sealant are vital to its success. A well formulated industrial coating, adhesive or sealant has balanced rheological properties, easy but controlled application, good Sag or slump resistance and storage stability. The thickeners incorporated in the coating, adhesive or sealant formulations provide the ma nufacturers with the a bi lity to design the rheological characteristics they need fora specific end use. Organic thixotropes are castor oil or polyamide-based materials that are especially useful in systems, such as industrial coatings, construction sealants, caulks, adhesives and mastics. These additives provide outstanding efficiency for shear thinning, viscosity build, Sag control and pigment suspension. However, the high activation temperature is sometimes a deterrent for broader use. In this paper, we present a new generation of highly efficient organic thixotrope-based thickeners that can be activated at significantly lower temperatures. These new materials can be successfully incorporated in industrial coatings or sealant formulas for better viscosity build, Sag resistance and higher extrusion rates. They display a wider process window and require less energy and time in production which can result in lower costs. Note de contenu : - ADVANCING POLYAMIDE THICKENER TECHNOLOGY : Polyamide thickener goals for improvement
- NEW POLYAMIDE THICKENER PERFORMANCE EXAMPLES IN INDUSTRIAL COATINGS : 90% high solids industrial 2K epoxy coating sag resistance - 77% solids industrial 2K urethane coating sag resistance
- EXPERIMENTS DEMONSTRATING ACCOMPLISHMENT OF THE NEW POLYAMIDE THICKENER GOALS : Low temp and moderate mixing speed : 85°F mixing of a 77% solids industrial 2K urethane coating - Low temp and very low mixing speed : 85°F mixing of a 90% solids industrial 2K epoxy coating
- 100% SOLIDS ADHESIVE -EFFECTIVENESS OF NEW POLYAMIDES IN MS POLYMER FORMULATION
- Fig. 1 : Schematic of hydrogenation of castor oil to produce a castor wax
- Fig. 2 : Diagram of castor wax based organic thickener material changes occurring during the coating preparation mixing process
- Fig. 3 : Generic molecular structure of a polyamide organic thickener
- Fig. 4 : A) possible hydrogen bonds between molecules of polyamide thickeners ; B) an SEM micrograph of a collection of polyamide fibrilsEn ligne : https://drive.google.com/file/d/1HrxDdxfAflFWJOYvJs31qRJLXsBQfxbQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31020
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Code-barres Cote Support Localisation Section Disponibilité 20192 - Périodique Bibliothèque principale Documentaires Disponible Design of pigment dispersants for high-performance applications / Andrew Shooter in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4644 (09/2018)
[article]
Titre : Design of pigment dispersants for high-performance applications Type de document : texte imprimé Auteurs : Andrew Shooter, Auteur ; Tom Annable, Auteur ; Stuart Richards Année de publication : 2018 Article en page(s) : p. 26-30 Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Anticorrosifs
Anticorrosion
Dioxyde de titane
Dispersions et suspensions
Epoxydes
Essais accélérés (technologie)
Essais de résilience
Oxyde de fer
Pigments inorganiques
Revêtements bi-composant
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- AdditifsIndex. décimale : 667.9 Revêtements et enduits Résumé : With increasing regulatory and environmental requirements, there is a drive towards developing water-based VOC free pigmented coating formulations with the same aesthetic properties as solvent-based systems. The pigment dispersant in addition to providing fast wetting and desirable colouristic effects will also impact the overall durability of the coating. Novel anchor groups have enabled us to design improved dispersants, which can be formulated into coatings with superior jetness and colour strength. These dispersants can reduce the particle size in much less time than conventional dispersants using less energy during the milling process while providing the required stability and compatibility in the coating formulation. In addition, through efficiency in design coupled with judicious selection of stabilising chains, the dispersant can be optimised to minimise its impact on water sensitivity and corrosion resistance.
After proving that these principles deliver superior dispersants on organic pigments and carbon black, our recent focus has been to deliver the same benefits on high end inorganic pigments for industrial applications, such as transparent iron oxides. In this paper, we will discuss these design principles and show how this has translated into superior performance in waterborne industrial coatings.Note de contenu : - Dispersion of transparent iron oxides
- Dispersion of titanium dioxide
- FIGURES : 1. Optimising the dosage of a dispersant and the relationship to flocculation - 2. Classification of dispersants - 3. Dispersion of high surface area carbon black pigment with SA dispersant - 4. Developing an effective MA dispersant and impact on millbase viscosity - 4A : Carbon black dispersion gloss and colour strength when let down into an industrial white base - 4B. Pigment yellow 42 gloss and colour strength when let down into an industrial white base - 5. SEM images of transparent iron oxides. Yellow iron oxide and red - 6. Millbase viscosity and particle size at different concentrations of transparent iron oxide - 7. Transparent iron oxide millbase viscosity and particle size at different loadings of dispersant - 8. Opacity of yellow iron oxide dispersions in an automotive clear coat vs milling time - 9. Particle size distributions of pigment dispersion during the milling process - 10. Relationship between particle size and opacity for yellow iron oxide dispersion - 11. Dispersion of TiO2 with MA dispersant vs competitive controls - 12. Performance of MA dispersant on TiO2 pigments - 13. Top : Corrosion testing of TiO2 dispersion in acrylic coating. Corrosion testing of titanium dioxide dispersion in 2K epoxy coatingEn ligne : https://drive.google.com/file/d/1LK7BYCe6RuKv0-sshcv8uZlAneuTPHTl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31021
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Code-barres Cote Support Localisation Section Disponibilité 20192 - Périodique Bibliothèque principale Documentaires Disponible Sustainable fluid dispensing and packaging / Peter Kuzyk in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4644 (09/2018)
[article]
Titre : Sustainable fluid dispensing and packaging Type de document : texte imprimé Auteurs : Peter Kuzyk, Auteur Année de publication : 2018 Article en page(s) : p. 38-40 Langues : Anglais (eng) Catégories : Adhésifs -- Application-dosage
Colles bi-composante:Adhésifs bi-composant
Déchets -- Réduction
Mastics -- Application-dosage
Mastics bi-composant
Systèmes de dosageIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Adhesives, sealants and other two-component fluids used in industrial, automotive, marine and construction assembly processes can now be applied using collapsible, film-based packaging. The author describes new cartridges that reduce waste by more than 85% when compared to conventional two-component fluid packaging, while lowering carbon footprint and supporting corporate sustainability initiatives. Note de contenu : - Reduce plastic waste by 85%
- Embracing sustainability
- Minimises fluid consumption and wasteEn ligne : https://drive.google.com/file/d/10nbyl552uKA3Ijwr8zI0UFBiePbmSpi_/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31022
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Code-barres Cote Support Localisation Section Disponibilité 20192 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Protecting against graffiti Type de document : texte imprimé Année de publication : 2018 Langues : Anglais (eng) Catégories : Revêtements anti-graffitis
Revêtements protecteurs
SiliconesLes 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).Index. décimale : 667.9 Revêtements et enduits Résumé : Graffiti can cause immense damage, as removing the aggressive spray paints is costly, damages the fabric of the building and can cause the property to drop in value. Here, eperts from Wacker introduce its highly effective anti-graffiti product that permanently protects surfaces with a thin film of silicone and allows graffiti and stickers to be readily washed off with just cold water. En ligne : https://drive.google.com/file/d/1aGHoZM76N9iicKXDspb2_uUxJh6DylWl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31023
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Code-barres Cote Support Localisation Section Disponibilité 20192 - Périodique Bibliothèque principale Documentaires Disponible