Plastic vacuum coating adhesion

The application of plastics occupies a large proportion in daily life. The improvement of the performance of plastics has been paid more and more attention. The coating of plastics can affect the various properties of plastics. Of course, different processes and structures in the plating process. The impact will have different performance for the performance of plastics. The following focuses on the vacuum coating process of plastics.

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Vacuum coating is to put the pretreated plastic substrate into the vacuum chamber, vacuuming to make the device reach a high vacuum state, using plasma bombardment film deposition layer to make the film adhere to the plastic surface, the higher the adhesion, the combination The more stable, the so-called adhesion, also known as the bonding force, is the strength of the film layer combined or attached to the substrate, the adhesion has two kinds of distinction, one is the basic adhesion, the other is the actual adhesion.

For plastic coatings, in the industry, widely used in optical films, optical film technology has developed into an independent technology, some countries have independent research and production plants, the current optical film technology from theory, design, A complete system has been formed in the measurement, process and calculation. The optical plastic is coated with a certain energy plasma for surface bombardment and plasma-assisted coating. It can penetrate into the plastic surface to form chemical bonds and improve the film in plastic. The physical bonding and chemical adsorption of the substrate enhance the adhesion of the film.

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Plastic vacuum coating equipment

Modern vacuum coating process has been applied in industry for nearly half a century. The coating equipment has been developed from bell-type equipment to box-type automatic equipment, and advanced testing and control technology has been used to continuously improve the current technology and adopt new technology. .