| 摘要 |
<p>The method for coating sanitary-, kitchens- and/or medical technology object, handles, light switches, doorknobs, handrails, push-buttons, foodstuff bands, beverage filling system, foodstuff manufacturing plants, control elements and keyboards and/or bedsteads that consist of metal or glass or have metallic surfaces, comprises applying a photocatalytic active titanium dioxide on the surface through cold gas spraying technique in glass above the glass temperature, where a metallic component is available in quantities of 1 wt.% on the basis of the total weight of the composition. The method for coating sanitary-, kitchens- and/or medical technology object, handles, light switches, doorknobs, handrails, push-buttons, foodstuff bands, beverage filling system, foodstuff manufacturing plants, control elements and keyboards and/or bedsteads that consist of metal or glass or have metallic surfaces, comprises applying a photocatalytic active titanium dioxide on the surface through cold gas spraying technique in glass above the glass temperature, where a metallic component is available in quantities of 1 wt.% on the basis of the total weight of the composition. The metal is stainless steel or titanium. A spray material has a particle size of 5-50 mu m, where cross-section of a statistically significant amount of particles is determined by image analysis of images that are received with a high resolution camera. Titanium dioxide is used in the form of anatase for cold gas spraying, which is carried out on a pressure of 30-40 bar and a temperature of 600-800[deg] C. The metal surface is covered with a surface portion of 30-80% with the photo catalytic particles determined by raster electron microscopy. The object to be coated is sink, toilet pan, toilet seats, toilet lid, door handles, operating table, hospital beds, light switch, fittings, kitchen worktops and extractor hoods. A pre-treatment of the coated surface takes place by polishing and/or grinding.</p> |
