Coating classification: light curing coating

Core tip: Product Introduction: UV curable coating (UVCC), also known as UV curable coating, is a kind of radiation curable coating It mainly refers to a new type of coating which can be quickly cross-linked and curable into film under light irradiation Because of its high-efficiency coating and environmental friendly characteristics, it has been widely used in the coating industry Compared with solvent based coatings, UV curable coatings have the characteristics of fast curing speed, volatile solvents, energy saving, low cost and automatic production Since Bayer company of Germany developed the first generation UV curable coating in 1960s, the technology of UV curable coating is not Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Coating home news: Product Introduction: UV curing coating (UVCC), also known as UV curing coating, is a kind of radiation curing coating It mainly refers to a new type of coating which can be quickly crosslinked and solidified into film under the light irradiation Because of its high-efficiency coating and environment-friendly characteristics, it has been widely used in the coating industry Compared with solvent based coatings, UV curable coatings have the characteristics of fast curing speed, volatile solvents, energy saving, low cost and automatic production Since Bayer company of Germany developed the first generation of UV curable coatings in 1960s, the technology of UV curable coatings has been continuously mature, and the raw materials, varieties and properties have been continuously developed The early UV curable coatings were mainly used for wood coating, but now the applicable base materials have been extended to paper, plastic, metal, stone, cement , fabric, leather, etc.; the appearance of the coating is also developed from the original high gloss type, including matte type, frosted type, metal flash type, pearlescent type, bronzing type, texture type, etc.; the suitable coating methods include spray coating, roller coating, spraying, dip coating, silk screen printing, offset printing, flexographic printing, gravure printing, etc Principle: UV paint is UV curable paint After UV irradiation, the photoinitiator absorbs UV radiation energy and is activated The electrons in the outer layer of the molecule jump and generate active center in a very short time Then the active center acts on the unsaturated group in the resin to break the double bond in the light-emitting curing resin and active diluent, Continuous polymerization takes place, thus cross-linking each other to form a film The study of chemical kinetics shows that the mechanism of UV curing is free radical chain polymerization The first is photoinitiation; the second is chain growth reaction With the chain growth, the system will cross-linking and solidify into film; finally, the chain free radicals will complete chain termination through coupling or disproportionation Characteristics: (1) advantages of UV curable coating 1) energy saving, no need to bake, UV light or electron beam consumed by curing film is only instantaneous, so only a little power is consumed in the production process 2) No solvent or low solvent dosage 3) The curing rate is fast, generally from zero seconds to ten seconds, greatly reducing the operation time; suitable for high-speed production line, the production rate is fast 4) The performance of the film is good, especially its fullness and luster It has good anti friction, anti solvent and anti pollution performance 5) The heat sensitive materials have better construction performance （2） Disadvantages of UV curable coatings 1) large investment in electron beam curing equipment 2) It is difficult to cure the component with complex geometry 3) There are still some difficulties in the application of UV curing technology to the color paint of oil paint Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,