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Introduction of Floor UV Coating
UV coating is a kind of decorative coating, which plays a great role in decoration. UV coating is often used in the production of PVC floor because of its scratch resistance and antifouling effect. This article will share the characteristics, efficacy and function of UV coating.
Introduction of UV coatings
UV coating, also known as polyurethane ultraviolet curing coating. It consists of active diluent, oligomer, photoinitiator and assistant. UV curing coating is a new type of coating popular in Europe, America, Japan and other places at the end of the 20th century. It is characterized by fast curing speed, energy saving, floor space saving, no environmental pollution and product performance improvement. It was first applied to the surface coating treatment of furniture, floors, mobile phones, walkman shells, and now its application field is further extended to the household appliances such as cosmetic containers, televisions and computers and other fields such as motorcycles and lighting.
UV curable coatings have antifouling and energy-saving effects, and are widely used in the production of plastic, vacuum plating, PVC floor, shadow mask, automobile headlights, wood floors, cabinet panels, etc. As a new processing technology, UV has been commercialized in Australia for more than 26 years. It is a solvent-free or basically solvent-free coating. During the film-forming process, no VOC volatilizes into the atmosphere, causing no pollution to the environment and meeting the government's environmental regulations. UV coating can improve the surface properties of paint film, such as hardness, flexibility, abrasion resistance, scratch resistance, chemical resistance, high gloss and durability.
Characteristics of uv coatings
1. the curing speed is fast.
It usually takes only about one second or less for the coating to cure under the irradiation of ultraviolet photons (UV ultraviolet lamp tube), which can carry out rapid continuous operation and greatly improve the production efficiency.
2. Curing at room temperature
Oligomers commonly used in UV coatings, such as epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylated polyacrylic resin and unsaturated polyester, and monofunctional or multifunctional monomers of various acrylates, can be polymerized and crosslinked at room temperature by free radicals under the action of ultraviolet photons, thus being particularly beneficial to the coating of heat-sensitive substrates (such as wood, paper and plastics).
3. Saving energy.
UV coating does not need to be heated and dried, so it can save 75% ~ 90% energy in construction compared with conventional thermal drying coating.
4. Saving the floor space.
All kinds of UV coating equipment are compact, do not need drying channels, operated simply and quickly, and are easy to realize production automation, thus greatly saving the floor space of equipment and reducing the working space.
5. No environmental pollution.
UV coating is a kind of solvent-free or basically solvent-free coating. During the film-forming process, no VOC volatilizes into the atmosphere, causing no pollution to the environment. It is easy to meet the environmental regulations of the government or legislative bodies.
6. Improving product performance.
Under the action of ultraviolet photons, UV coatings can realize the cross-linking polymerization among components, quickly cure the liquid into a film, and have a three-dimensional network structure, which can improve the surface properties of the paint film, such as hardness, flexibility, abrasion resistance, scratch resistance, chemical resistance, high gloss and durability.
The efficacy and function of uv coating
Paint is a chemical mixture that can be firmly coated on surfaces for protection, decoration, marking and other special purposes. Chinese coating industry more authoritative "paint process" book is so defined: uv paint "paint is a kind of material, this material can be coated on the surface of objects with different construction technology, the formation of solid adhesion, with a certain strength, continuous solid film. The film formed in this way is known as coating film, also known as paint film or coating.
After strong ultraviolet curing treatment, the color is stable, over time often new, effectively solve the door fading and color difference problems; Door mirror flat effect is better, and the paint film is full without orange peel; It is one of the most environmentally friendly and healthy door panels in the world. Door hardness is 2 times of other paint door, scratch resistance, acid and alkali resistance, not easy to deformation.
uv curable coating is a new type of coating popular in Europe, Japan and other places at the end of the 20th century. First used in furniture, floor, mobile phone, Walkman shell surface coating treatment, its application field is now further extended to cosmetics containers, TV and computer and other household appliances and motorcycle and cover light and other fields.
Anti-corrosion, waterproof, oil proof, chemical resistance, light resistance, temperature resistance, etc. Objects exposed to the atmosphere, oxygen, water and other erosion, resulting in metal corrosion, wood decay, cement weathering and other damage phenomena.
Coating on the surface of objects, forming a protective film, can prevent or delay the occurrence and development of these destructive phenomena, so that the service life of various materials. Therefore, the protective effect is a main role of paint.