High energy plasma can bombard and irradiate polymer materials, breaking their molecular chains, forming active groups, increasing surface energy, and generating etching. Plasma surface treatment does not affect the internal structure and performance of the bulk material, but only significantly changes the surface properties.
In order not to damage the characteristics of the material itself, plasma surface modification treatment usually does not use plasma with higher power density. The difference between this treatment and other plasma treatments is:
1) Do not inject ions or atoms into the treated surface (such as ion implantation).
2) Do not remove larger materials (such as sputtering or etching).
3) Do not add more than a few single (atomic) layers of material to the surface (such as deposition).
In short, plasma surface treatment only involves the outermost few atomic layers.
The process parameters for plasma surface modification mainly include gas pressure, electric field frequency, discharge power, action time, etc. The process parameters are easy to adjust. During the plasma modification process, many active particles are prone to react with the treated surface they come into contact with, and can be used to treat the material surface. Compared with traditional methods, plasma surface modification has the advantages of simple process, simple operation, low cost, pollution-free, waste free, safe production, and high efficiency.
Post time: Jun-07-2023