The difference between plasma and corona treatment

• Categories:Company Dynamics
• Author:plasma cleaning machine-surface treatment equipment-CRF plasma machine-Sing Fung Intelligent Manufacturing
• Origin:
• Time of issue:2020-09-19
• Views:

(Summary description)Plasma is not treated in the same way as corona, which can only deal with very thin things, such as plastic film, which requires that the object should not be large in volume and should be used for wide area processing. The principle is to use high frequency and high voltage in the treated plastic surface corona discharge (high frequency AC voltage up to 5000-15000V/m2), thus producing a low-temperature plasma, the plastic surface to produce free radical reaction and polymer crosslinking. Surface roughness and increased wettability to polar solvents - these molecules are shocked and infiltrated into the surface of the substrate to destroy its molecular structure, thereby oxidizing and polarizing the surface molecules to be treated, and ionic shocks erode the surface, thereby increasing the adhesion of the substrate surface. I. Similarities between plasma surface treatment and electric airsickness surface treatment: 1. Plasma surface treatment and electric airsickness surface treatment are glow discharges with high frequency and high voltage. Plasma is used to treat the surface of materials. 2. Effects of plasma surface treatment and electric airsickness surface treatment: both can improve the adhesion of material surface and facilitate bonding, spraying and printing processes. 3. are all online processing, production line. Ii. Differences between plasma surface treatment and electric airsickness surface treatment: 1. In addition to glow discharge, plasma surface treatment also includes electrovolt discharge, which generates more energy and can reach adhesion of 52 Dyne above, while electric airsickness generally can only reach adhesion of 32-36 Dyne. 2. corona function processing large width, suitable for adhesion is not very high material, such as cloth, film, plastic film and other things. Plasma treatment is suitable for high adhesion, good durability and low temperature. A linear plasma cleaner (as shown below) can be used for processing up to 120mm-2000mm in width, and larger processing systems can be customized. Therefore, plasma cleaning can also meet the processing of large materials, but the budget is higher than electric airsickness, can be selected according to the needs.