Coating knowledge: five drying methods of water-based coating, if you want to dry, you must learn!

Core tips: 1 Natural dullness and natural dullness have the advantages of simple method and universal application, but at the same time, they have the defects of slow dullness Under natural conditions, temperature, humidity and wind speed are variable, dry speed and film quality are not stable 2 Microwave dry microwave heating is based on the principle of dielectric loss, and the dielectric constant of water is much larger than that of dry matter Most of the energy released by electromagnetic field is absorbed by water in coating The advantage of microwave heating is that it is very dry and fast Different substances have selective absorption of microwave The heating of the film is very average, there is no temperature gradient, it can dry thick film 3 UV dry 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 Paint Home News: 1 Natural dryness and natural dryness have the advantages of simple method and universal application, but at the same time, they have the defects of slow drying speed Under natural conditions, temperature, humidity and wind speed are variable, dry speed and film quality are not stable 2 Microwave dry microwave heating is based on the principle of dielectric loss, and the dielectric constant of water is much larger than that of dry matter Most of the energy released by electromagnetic field is absorbed by water in coating The advantage of microwave heating is that it is very dry and fast Different substances have selective absorption of microwave The heating of the film is very average, there is no temperature gradient, it can dry thick film 3 UV drying in water-based coatings contains a small amount of photosensitizers Under the UV light, photosensitizers absorb UV light of a specific wavelength, synthesize active groups, cause the polymerization reaction of film-forming substances, form a network structure and make the coating solidified UV curing has the characteristics of fast curing speed and good coating quality But This method can only be used to dry water-based paint, and can only be used to dry flat furniture finishing board 4 Infrared dry infrared curing has the advantages of fast curing speed, rapid temperature rise and good curing quality However, when infrared heating is used to dry coating, there is an obvious temperature gradient in the coating, and its dryness extends from the outside to the inside, which makes it not suitable for dry and thick coating; Infrared drying can only heat the area that infrared ray can reflect, and can not be used to dry flat objects 5 Hot air dryness hot air dryness is a method of heating dryness, which uses the hot air with the temperature of 40-60 ℃ as the heat carrier to transfer the heat energy to the coating on the surface of the workpiece, after the coating absorbs the energy, it solidifies into a film Generally, electricity or steam is used as heat source to heat the air first, and the heat is transferred from the hot air to the surface of the coating through convection, so that the coating can be quickly and dry Concerned about the WeChat official account, "paint net" There are some surprises to be observed If the swallow and the Wu Mei Niang sell paint, what will happen? (92525666) the paint house is a news and paint, diatom mud, paint and coating technology, which focuses on coatings, diatom mud, paint and coatings, coating technology, fireproofing materials Decoration knowledge and effect drawing of fireproof coating,