The application of light curing coating in vacuum coating

Vacuum coating technology began in the 1930s and went into industrial applications in mid-20th century and large-scale production in the 1980s.Then it has been widely used in the electronics,The application of light curing coating in vacuum coating Articles aerospace, optical, magnetic, construction, machinery, packaging, decoration and other fields, and plays an increasingly important role. Vacuum coating technology and organic composite coating is a widely used compound surface treatment technology, has several decades of development history, especially in the plastic, metal substrate preparation protective – decorative tineco floor one s5 steam wet dry vacuum cleaner coating has been formed so great scale of production. Organic polymer coating liquid curing a variety of ways, including using UV-curable coatings (referred to as light-cured paint) increasing people’s attention. Its main features are: fast curing, typically UV light radiation in just a few seconds or tens of seconds can be cured completely; environmentally friendly, when in the light most or most of the components involved into the cross-linking polymerization film; save energy, UV light curing of solvent-based coatings with energy of about 1 / 5; can paint a variety of substrates, to avoid heat curing at high temperature on the heat-sensitive substrates (such as plastic, paper or other electronic components, etc. ) may cause damage; low cost, due to Tineco UK substantial energy savings, high levels of the active ingredient in paint and simplify the process, significantly reduce the plant footprint  and reduce production costs and other factors. The above analysis shows that light-curing of the coating in the vacuum coating industry has broad application prospects. Light-cured coatings in vacuum before and after coating and surface coating as a base coat, plays a very important role.Currently plastic vacuum coating and organic coating curing compound, commonly used vacuum aluminum coated zinc oxidewith an organic light-cured composite, but in the protection, and performance has been greatly restricted. Vacuum chrome is one of the future directions of development. Vacuum chrome aluminum coating layer has more beautiful than silver metallic luster, in the atmosphere has a strong passivation properties, in alkali, nitrate, sulfide, carbonate, organic acids and other corrosive media, stable, and high hardness , good wear resistance and heat resistance. However, the melting point of chromium is 1900 , 1397  when the chromium in the vapor pressure of 1.33Pa, high evaporation temperature of chromium, chromium-plated with vacuum evaporation more difficult. If using magnetron sputtering, due to chromium brittle, difficult to make cylindrical target, then in general the sputtering conditions, the planar magnetron sputtering target frame material due to pollution and other reasons, the color of chromium plating significant deviation from the silver-white. The authors tested research, the use of cathodic arc ion plating with a combination of ion bombardment plating method, to obtain the same color with chrome plating. In this, the choice of base coat must have sufficient heat resistance and radiation resistance, and vacuum coating and the substrate layer has a good combination of strength, not a chemical reaction with each other and have a good leveling, in the under vacuum only a few of the volatile components and do not absorb moisture, highly smooth surface after curing, etc. Among the coatings, titanium dioxide coating, polybutadiene coatings can basically meet the above conditions, but this coating is heat cured coatings, and high curing temperature, curing time is long, can not be used for plastic vacuum coating. Alicyclic epoxy resin is a branch of the epoxy groups

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