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Fumed metallic oxides enhance rheology of water-based adhesives / Maria Nargiello in ADHESIVES AGE, Vol. 38, N° 2 (02/1995)
[article]
Titre : Fumed metallic oxides enhance rheology of water-based adhesives Type de document : texte imprimé Auteurs : Maria Nargiello, Auteur ; Gary J. Bush, Auteur Année de publication : 1995 Article en page(s) : p. 45-49 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Charges (matériaux)
Copolymère éthylène acétate de vinyle
Essais (technologie)
Oxydes métalliques
Polychloroprène
Polyuréthanes
Rhéologie
ThixotropieIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : This article examines the use of fumed metallic oxides as a thixotrope, anti-settling aid and performance enhancer in several adhesive formulations. The water-based systems were evaluated for viscosity, thixotropy and filler suspension. Note de contenu : - FUMED METALLIC OXIDES
- WATER-BASED ADHESIVES
- MIXING AND ADDITION : Neoprene - Ethylene vinyl acetate and polyurethane
- TEST METHODS
- TESTING RESULTS : Neoprene - Ethylene vinyl acetate - PolyuretaneEn ligne : https://drive.google.com/file/d/1YA6XdNnHZB5vAzHGrGO8xUOV4_clG-Vg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20588
in ADHESIVES AGE > Vol. 38, N° 2 (02/1995) . - p. 45-49[article]SMS improves anti-fouling performance in cuprous oxide-based coatings / Michael Guenther in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 208, N° 4645 (10/2018)
[article]
Titre : SMS improves anti-fouling performance in cuprous oxide-based coatings Type de document : texte imprimé Auteurs : Michael Guenther, Auteur ; Sascha Herrwerth, Auteur ; Katrin Roland ; Maria Nargiello Année de publication : 2018 Article en page(s) : p. 39-41 Langues : Anglais (eng) Catégories : Durée de vie (Ingénierie)
Dureté (matériaux)
Formulation (Génie chimique)
Marines (peinture)
Oxydes de cuivre
Revêtements antisalissures:Peinture antisalissures
Silice fumée
Sulfate de baryumIndex. décimale : 667.9 Revêtements et enduits Résumé : Structure modified, nanostructured synthetic fumed silica technology was introduced more than a decade ego for improving scratch resistance and mechanical strength across coatings and adhesives/sealant industry fields. New developments now create a novel design, which offers environmentally sustainable improvement to anti-fouling performance in marine environments.
This paper addresses how the use of select, tailor¬made structure modified fumed silice technology (SMS) formulated synergistically with copper oxide (Cu20) improves the antifouling behaviour and life-cycle performance of antifouling coatings. Supporting mechanical stability results will show how technology helps reinforce film properties. A brief review of the model to explain the positive effects of structure modified fumed silice in Cu20 based antifouling coatings will be presented. Specific performance enhancements of increased film stability and a reduced leaching of copper ions will be addressed.Note de contenu : - Fumed silica particle design capability and flexibility
- Experimental test protocol : Formulation - Application
- Fig. 1 : Copper oxide dispersion with and without SMS. Cu20 dispersion without SMS and Cu20 dispersion with 10% SMS
- Fig. 2 : Key elements of structure modification
- Fig. 3 : Performance of Btank and References 1 and 2
- Fig. 4 : Performance of Btank, References 1 and 2 combined with SMS and Cu20
- Fig. 5 : Performance of Blank, References 1 and 2 combined with SMS and barium sulphate
- Fig. 6 : Demonstration of use of SMS allows significant reduction of copper oxide
- Fig. 7 : Biomass accumulation after test period
- Fig. 8 : Model of sustainable 'visibility' of copper oxide with SMS
- Fig. 9 : Martens Hardness increases with use of SMSEn ligne : https://drive.google.com/file/d/1JyQukvOL21ygGK514Z3iGRnN2auYRtN5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31255
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 208, N° 4645 (10/2018) . - p. 39-41[article]Réservation
Réserver ce documentThe use of engineered silica to enhance coatings / Jim Reader in COATINGS TECH, Vol. 17, N° 6 (06/2020)
[article]
Titre : The use of engineered silica to enhance coatings Type de document : texte imprimé Auteurs : Jim Reader, Auteur ; Maria Nargiello, Auteur Année de publication : 2020 Article en page(s) : p. 36-45 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Brillance (optique) -- Mesure
Charges (matériaux)
Déperlance
Dispersions et suspensions
Fluidisation
Formation de film
Imperméabilisation
Matériaux amorphes
Mouillabilité
Résistance à l'abrasion
Rhéologie
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : The field of coatings technology has utilized many forms of silica-based particles in the last 70 years. This large, varied class of fillers is generically broken into two categories of crystalline and amorphous morphology. With ongoing scrutiny and sensitivity in the coatings industry to move towards less hazards in the workplace, greater emphasis is placed on suitable amorphous technology to replace crystalline silica technology. Amorphous silica is highly adaptable and flexible to be modified in both powder and pre-dispersed forms, and numerous engineered types of technologies have been developed to provide functional solutions to many coatings problems.
Amorphous silica technology has been developed to address functionalities including: rheological control, suspension of pigments and fillers, and reinforcement of coatings film; to impart scratch resistance, hydrophobicity / anti-corrosion benefits, and oleophobicity; as a carrier of trace actives into coatings for homogenous distribution; for flow control, charge, and fluidization enhancement of powdered coatings; and gloss reduction of liquid systems. Particle technology and modification will be addressed along with performance attributes highlighted for each of the types of tailor-made modifications. The importance of proper dispersion and homogenous distribution within a coating matrix will be reviewed.
This article will address how amorphous silica technology is differentiated and engineered to create specially tailored solutions to enhance the performance of coatings and will highlight the latest technical developments in this field.Note de contenu : - Rheology and film formation
- Anti-corrosion/water repellency
- Scratch resistance
- Free flow, fluidization, transfer efficiency
- Gloss control
- Recent developments in silica technology
- Fig. 1 : The silica family tree
- Fig. 2 : Production of pyrogenic (fumed) silica
- Fig. 3 : Primary, secondary, and tertiary structures of fumed silicas
- Fig. 4 : Methanol wettability of differently treated fumed silicas
- Fig. 5 : Thickening efficiency of fumed silica as a function of surface treatment
- Fig. 6 : Improved film formation with fumed silica dispersions
- Fig. 7 : Improved corrosion resistance with hydrohobically treated fumed silica ; coatings based on published guide formulations from Halox
- Fig. 8 : Structure modification of fumed silica and scratch resistance
- Fig. 9 : Homogeneous distribution of silica through a polymer matrix
- Fig. 10 : Improved scratch resistance results in a high-soilds, 2K polyurethane clear coat based on Macrymal SM 510n60LG and Vestanat HB 2640MX
- Fig. 11 : Transfer efficiency and Faraday cage effects
- Fig. 12 : Fluidization efficiency
- Fig. 13 & 14 : Measuring gloss with a reflectometer (DIN EN ISO 2813)
- Fig. 15 : SEM images of a new spherical precipitated silica particles
- Fig. 16 : Viscosity "jump curves" for waterbased silica dispersions
- Table 1 : Comparison of characteristics of different synthetic silicas
- Table 2 : Common surface treatments for fumed silicasEn ligne : https://drive.google.com/file/d/17TVd7hca18xX6Tv0Yq4-_5oKHwAWTdO8/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34358
in COATINGS TECH > Vol. 17, N° 6 (06/2020) . - p. 36-45[article]Réservation
Réserver ce document