A brief description of UV coatings

UV-cured coatings are a new type of coating popular in Europe, America, Japan and other places at the end of the twentieth century.
composition of a UV coating
1 active thinner
the main role is to dissolve the solid components in the UV coating, adjust the viscosity of the system. Thinners in UV coatings are not volatile organic solvents used in general coatings, but non-volatile solvents that are directly involved in the curing film process and have the ability to react
the
. Active thinner in terms of chemical structure, is generally a molecular weight is not large and the molecule contains a class of polymerable energy groups of monosomes, into a film to become part of the paint film.
2 Oligomers
also known as polymers or oligomers, are the basic skeletons in UV coatings, under the role of ultraviolet photons to form a three-dimensional structure of the paint film, and give the paint film a variety of characteristics, such as hardness, flexibility, adhesion, gloss, aging and other properties.
3 light trigger
is a key component of UV coatings, its role is to transmit the energy of ultraviolet photons, rapidly trigger the cross-linking polymerization of monomers and lysates, and promote the system's liquid solid conversion process. According to the triggering agent, the light trigger can be divided into free-based and cation two types.
4 Additives
As the name implies, certain auxiliary components are added to meet specific use requirements and improve the performance of the paint film, such as leveling agents, deblisters, substrate lubricants, anti-lighting agents, dispersants, stabilizers, surface smoothing agents, etc. These additives are no different from those commonly used in solvent-based coatings.
is to dissolve the solid parts in the UV coating and regulate the viscosity of the system. Thinners in UV coatings are not volatile organic solvents used in general coatings, but non-volatile solvents that are directly involved in the curing film-forming process. Active thinner in terms of chemical structure, is generally a small molecular weight and the molecule contains a class of polymeric energy groups of monosomes, formed into a film to become part of the paint film.
5 Oligomers
also known as oligomers, are the basic skeletons in UV coatings, under the role of ultraviolet photons to form a three-dimensional structure of the paint film, and give the paint film a variety of characteristics, such as hardness, flexibility, adhesion, gloss, aging and other properties.
6 light trigger
is a key component of UV coatings, its role is to transmit the energy of ultraviolet photons, rapidly trigger the cross-linking polymerization of monomers and polymers, and promote the system's liquid solid conversion process. According to the triggering agent, the light trigger can be divided into free-based and cation two types.
7 Additives
As the name implies, certain auxiliary components are added to meet specific use requirements and improve the performance of the paint film, such as leveling agents, de-foaming agents, substrate lubricants, anti-lighting agents, dispersants, stabilizers, surface smoothing agents, etc. These additives are no different from those commonly used in solvent-based coatings.
2 UV coating advantages
1 fast curing speed, high production efficiency, curing process is a free-based chain reaction, cross-curing in an instant, the design and production line speed of up to 100 meters / minute, work parts can be packaged, belongs to the green coating, compared with traditional drying paint using UV paint efficiency is more than 15 times;
2 energy saving, UV coatings by ultraviolet curing, the general production line energy consumption within 50KW, compared with the traditional drying type of thermo-cured coatings, energy consumption is about 1/5;
3 small environmental pollution, UV coatings VOC content is very low, is recognized as a green environmental protection products;
4 Coating performance is excellent, UV coating cured cross-link density is much higher than the thermal baking coating, so the coating in hardness, wear resistance, acid-base resistance, salt spray resistance, gasoline resistance and other solvents in all aspects of the performance indicators are
very high; Because UV coatings do not have UV radiation will not cure, and therefore will not clog and corrosion equipment, coating tools and lines easy to clean, equipment failure rate is low

three UV coating application areas
1 wood products
wood products processing has very strict conditions control, processing temperature can not be higher than 75 degrees C, too high temperature will make wood bubbles, resulting in wood durability and aesthetic decline, and UV photo-curing coatings on the use of temperature without strict conditions, so very good to meet this condition.
2 Plastic products
generally includes ordinary plastic coatings and engineering plastic coatings, can give ordinary plastics such as polystyrene products, lycopene, polyester film products, such as friction-resistant, non-scratchable performance, phenolic products, ABS products and other engineering plastics high hard, high gloss, aesthetic and other properties, for plastic flooring, UVCC can give it easy scratching, wear, low gloss, aesthetic performance.
3 paper
paper coating is a kind of hood paint, generally known as photo-cured varnish, suitable for book covers, advertising posters, commercial packaging cartons, decorative paper bags, such as coating decoration, giving products high gloss, wear resistance, water resistance, enhance the beauty of products.
4 fiber
main function is to protect the strength of quartz glass pulled into fiber and prevent environmental pollution, and give each fiber different color.
5 Metal
metal sign decoration, can processing, metal trim plate manufacturing, aluminum alloy door and window protection and steel pipe temporary coating protection, etc. , the products mainly play a protective role.