| dc.description.abstract |
In recent years there have been many research of surface hydrophobicity characteristics, in which there is a surface of extreme wet behavior known as super-hydrophilic properties. When the water droplets on the super-hydrophilic surface, the water contact angle is less than 10 °. On this surface is conducive to rapid spread of water so that it has a fast drying of the excellent performance, so super-hydrophilic surface with rapid evaporation cooling, Anti-fog and other functions.
In this research organic silane was used as the process reaction gas, finally organic silane Superhydrophilic thin film deposited on the substrate by plasma polymerization. By changing the process parameters, such as anode voltage, deposition time, etc., making the organic silane plasma polymer film with super-hydrophilic properties, using optical emission spectrometer for dynamic observation in the process. In the case of lifting the anode voltage, the increase in CN signal strength indicates that the nitrogen content of the thin film is increased. The water contact angle is less than 10 ° with super-hydrophilic characteristic measured by the water contact angle. Analysis of membrane element composition ratio by XPS, the results show that the highest N / Si ratio under the high anode voltage parameters indicates that the surface has the most nitrogen-containing functional groups. This functional group is the main reason for the super-hydrophilic properties of organic silane plasma polymer films.
Optical properties, the average visible light transmittance of glass substrates are greater than 90.4%, PC plastic substrates are greater than 88.9%, with good optical properties. | en_US |