Scientists at NTU Singapore have developed a new type of coating that, when applied on a plastic surface, prevents fogging and ‘self-cleans’, overcoming the need for frequent reapplications.
The durable coating of a thin double layered silicon dioxide - titanium dioxide film is applied through a two-step technique.
Firstly, the plastic surface is treated with oxygen plasma, which is a common industrial method to clean surfaces to improve adhesion. Then the thin double layered film is deposited on the plastic surface using pulse laser deposition – in which a laser beam is focused to vaporise material from the intended coating targets to achieve the desired level of thickness of the film.
More: ntu.edu.sg
