Coating formulation: formulation development of Waterborne UV coating

Core tip: countries all over the world pay more and more attention to environmental protection, environmental pollution of solvent polyurethane coating is increasingly prominent, research and development of water-based polyurethane coating is increasingly valued, water-based polyurethane coating has the advantages of non combustion, non-toxic, non pollution, energy saving, convenient operation, etc The combination of UV curing technology and water-based coating has greater environmental protection and technical advantages, which is in line with the current trend of environmental protection in the world and represents the future development trend of coating industry At present, Waterborne UV curable polyurethane has many advantages, such as flexibility, wear resistance and impact resistance, but it is very good with solvent 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 Home of coatings: countries around the world pay more and more attention to environmental protection issues The environmental pollution of solvent polyurethane coating is increasingly prominent The research and development of waterborne polyurethane coating is increasingly valued Waterborne polyurethane coating has the advantages of non combustion, non-toxic, pollution-free, energy saving, convenient operation, etc The combination of UV curing technology and water-based coating has greater environmental protection and technical advantages, which is in line with the current trend of environmental protection in the world and represents the future development trend of coating industry At present, Waterborne UV curable polyurethane has many advantages, such as flexibility, wear resistance and impact resistance, but compared with solvent polyurethane, waterborne polyurethane has some disadvantages, such as poor self thickening, low solid content, poor water resistance and heat resistance In order to overcome these shortcomings, improve the comprehensive properties of waterborne polyurethane and expand the application range, the research on polyurethane modification has become a hot spot in recent years Wuhan University has developed a silicone modified water-based UV coating, which is not only environmentally friendly and non-toxic, fast curing speed, good stability, but also has excellent aging resistance and solvent resistance, excellent adhesion and wear resistance It is suitable for a variety of painting methods and production requirements, and can be widely used on the surface of automobile, electronics, ship, furniture and packaging printing materials The main components and contents of the product are: organosilicon modified hyperbranched waterborne polyurethane acrylate 30-55%, filler 20-50%, photoinitiator 1-10%, auxiliary agent 0-3%, water 5-30% The hyperbranched waterborne polyurethane acrylate, filler and water modified by organosilicon were fully ground according to the ratio, dispersed for 1-2 h at 40-50 ℃, 400-600 rpm, added with photoinitiator and additives, stirred evenly, and then the Waterborne UV coating was obtained after standing The common modification methods are acrylate, epoxy resin or silicone crosslinking Organosilicon compounds have the characteristics of organic compounds and inorganic compounds They have many excellent properties, such as low temperature resistance, weather aging resistance, insulation, ozone resistance, hydrophobicity, fire resistance, low surface energy, etc., which can effectively improve the water resistance and weather resistance of waterborne polyurethane coatings 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,