Coatings and their different behaviors
The coatings can be sorted based on the role and in relation to how they behave in different situations:
- Condensation and anti-condensation: is possible to modify a surface to make it more favorable so water or other liquid get condensed and move to liquid phase on the wall, ie to improve the condensing. It is also possible to alter an area to make not condense on that surface.
- Anti-frost: they are surfaces which prevent the formation of ice on our surface to avoid the initial contact with water. By this way the ice crystals can not crystallize and improves the efficiency of the apparatus.
- Self-cleaning: they exist surfaces in nature that self-clean as the lotus leaf. In ATRIA we can cover your area and get a self-cleaning effect. This can be useful in aesthetic so functional applications.
- Easy-to-clean: are surfaces that are easier to clean because the bonds formed between the spot and the surface potential are very weak.
- Anti-finger: with specific optical and chemical changes it is possible to prevent fingerprint smudges on different surfaces.
- Anti-scratch: hard surfaces that are no easily scratched.
- Photocatalytic: surfaces are able to degrade organic material, odors or bacteria.
We can categorize the different surfaces depending on how they react to liquid elements:
- Hydrophobic and superhydrophobic: hydrophobic surfaces are considered those having a contact angle of between 90 ° and 120 ° in water, it says that its amphiphobic with water is low. From 120º are considered superhydrophobic surfaces.
- Hydrophilic and super hydrophilic: it is those having hydrophilic surfaces the contact angle of between 70 ° and 20 ° in water and therefore have a high water amphiphobic. In the case of less than 20 ° are considered superhydrophilic.
- Oleophobic and superoleophobic: are oil-repellent surfaces.
- Oleophilic and superoleophilic: in this case they are surfaces that attract the oil and therefore can guide etc..
- Anfifobo: are surfaces that repel both water and oil.
- Titanium Dioxide
- Rugosity: roughness is a key parameter because with its its modification we are able to alter the wettability as well as by modifying the chemical composition.
- Sol-gel: Sprayed, dip-coating.
- Atmospheric plasma
Behavior of water depending of the surface