NanoArc Aluminum Oxide Dispersions for ... - Farbeundlack.de

NanoArc Aluminum Oxide®Dispersions for Coatings andGraphic Arts

Performance of NanoArc ® Aluminum Oxide in UV/EB Cured Clear Coatingsfor Electronics, Wood, and Graphic ArtsTo meet the increasing demands of scratch and abrasionresistance, NanoArc® Aluminum Oxide is available in a varietyof particle sizes. Loading levels of 0.2 to 2.0 wt% aluminumoxide based upon total resin solids provide uncompromisingscratch resistance with excellent gloss retention.Performance, clarity, and cost must be taken intoconsideration when choosing the appropriate NanoArc®Aluminum Oxide. These dispersions have no effect on curerate or coating viscosity.Gloss Retention (20°)Effect of Particle Size on Scratch ResistanceEffect of Particle Size on Scratch Resistance(1 wt% NanoArc® Aluminum Oxide in 0.3 mil thick UV Cured Coating)(1 Aluminum Oxide in 0.3 mil thick UV 100%90%80%70%60%50%40%30%20%10%0%0 10 20 30 40 50Double Rubs with 0000 Steel WoolControl 20 nm 40 nm 150 nm 250 nm 800 nmEffect of NanoArc® Aluminum Oxide on Pencil HardnessAluminum oxide offers scratch and abrasion resistance at muchlower loading levels than silica. Aluminum oxide particles areoften preferred because of its higher Mohs hardness of 9,compared to 7 for silica.NanoArc® AL-2460 increased the coating hardness from HB up to3H with 2.0 wt% loading.Aluminum oxide, even at low concentrations, improves scratchresistance, without degrading the appearance of the coating,reducing gloss, or contributing haze.NanoArc AL-2460 in 4 mil Thick UVCured Coating on GlassPencil HardnessHBF2H3HGloss Retention (20°)100%90%80%70%60%50%40%30%20%10%Increasing HazeEffect of NanoArc® Aluminum Oxide Loading onGloss Retention after 50 Cycles with 0000 Steel WoolEffect NanoArc® Aluminum(0.3 milOxidethickLoadingUV Curedon GlossCoating)Retention after 50 Cycles0%0.0 0.5 1.0 1.5 2.0wt% Aluminum Oxide20 nm 40 nm 150 nm 250 nm 800 nmEffect of NanoArc® Aluminum Oxide Loading on HazeEffect of Nano-Alumina Loading on Haze(0.3 mil thick UV Cured Coating)0 0 .5 1 2% AluminaComparison of NanoArc® Aluminum Oxide toConventional Scratch and Mar AdditivesNanoArc® Aluminum Oxide dispersions function differentlythan conventional slip additives, such as silicones and waxes.NanoArc® Aluminum Oxide does not effect coefficient of friction,gloss or recoatability. Since they do not migrate to the coatinginterface, they provide long-term scratch and wear resistance.Additionally, they provide superior performance at low loadinglevels.Gloss Retention (20°)100%90%80%70%60%50%40%30%20%10%0%Performance Comparison of NanoArc® Aluminum Oxidevs. Conventional Additives After 50 Double Rubs (0000 Steel Wool)Control150 nmAlumina0.5 wt%PE Wax2.0 wt%PP Wax2.0 wt%PTFE Wax2.0 wt%ColloidalSilica15.0 wt%FumedSilica5.0 wt%Silicone0.1 wt%0 0.5 11.52wt% NanoArc® Aluminum Oxide20 nm 40 nm 150 nm 250 nm 800 nmLow Sheen Applications High Gloss Applications Transparent Applications

NanoArc ® Aluminum Oxide Commercial ProductsProduct Recommendation by Film ThicknessParticle SizeFilm Thickness 20 nm 40 nm 150 nm 250 nm 800 nm< 5 Microns(< 0.2 mil) • • • • •5 - 10 Microns(0.2 - 0.4 mil) • • • • •10 - 20 Microns(0.4 - 0.8 mil) • • • • •> 20 Microns(>0.8 mil) • • • • •• Not Suitable • Suitable•Highly SuitableIt is important to consider 20 and 40 nmparticles for very thin films.NanoArc® Aluminum Oxide Dispersion ProductsProduct Particle Size Fluid SolidsAL-2255 20 nm Water 30 wt%AL-2260 20 nm TPGDA 30 wt%AL-2456 40 nm Water 50 wt%AL-2425 40 nm PM Acetate 50 wt%AL-2460 40 nm TPGDA 30 wt%AL-2156 150 nm Water 45 wt%AL-2125 150 nm PM Acetate 45 wt%AL-2160 150 nm TPGDA 45 wt%AL-2350 250 nm Water 55 wt%AL-2325 250 nm PM Acetate 55 wt%AL-2360 250 nm TPGDA 55 wt%AL-2850 800 nm Water 55 wt%AL-2825 800 nm PM Acetate 55 wt%AL-2860 800 nm TPGDA 55 wt%Nanophase offers a range ofaluminum oxide particle sizesin a variety of dispersion mediato ensure compatibility for yourproject requirements.CompatibilityNanoArc® Aluminum Oxide dispersions arecompatible with a variety of resin systems,including: acrylic, styrene acrylic, polyurethanes,UV curable, epoxies, alkyds, polyesters, and otherresin systems.Recommended Usage LevelNanoArc® Aluminum Oxide Recommended usagelevels are 0.20-2.0 wt% alumina solids based upontotal resin solids.Sales & Marketing > sales-marketing@nanophase.com1319 Marquette Drive Romeoville, IL 60446phone: 630.771.6700 fax: 630.771.0825www.nanophase.com