Common knowledge of coating: what are the characteristics and construction advantages of high solid coating

It is suggested that high solid coatings are one of the important branches in many coatings classification With the further strengthening of environmental protection law and the improvement of coating manufacturing technology, high solid coatings came into being Generally, the solid fraction is 65% 85% of the coating can be called HSC At the extreme of HSC development is solventless coating (solventless coating is also called active solvent coating) For example, polyurea elastomer coating, which is rising rapidly in recent years, is the representative of this kind of coating The application scope and main varieties of high solid paint are mainly used in automobile industry, especially as the top coat and middle coat of car 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 news: high solid coating is one of the important branches of coating classification With the further strengthening of environmental protection law and the improvement of coating manufacturing technology, high solid coatings came into being Generally, the solid fraction is 65% 85% of the coating can be called HSC At the extreme of HSC development is solventless coating (solventless coating is also called active solvent coating) For example, polyurea elastomer coating, which is rising rapidly in recent years, is the representative of this kind of coating The application scope and main varieties of high solid coatings are mainly used in automobile industry, especially as the top coat and middle coat of cars 90% of the solid coatings in the United States have been used as automobile midcoat, and Japan is gradually approaching the level of the United States At present, the main varieties of high solid coatings are amino acrylic acid, amino polyester and white dry alkyd paint In addition, heavy anti-corrosion projects such as petrochemical tanks and marine and coastal facilities are also being used The core of HSC is to reduce the relative molecular weight of traditional film-forming materials, reduce viscosity and improve solubility In the process of film-forming, effective cross-linking reaction is used to ensure the perfect coating quality to reach the level of thermosetting solvent based coating or higher The main technique of synthesizing high solid coatings is to reduce the relative molecular weight of film-forming products and viscosity of resin by synthesizing oligomers or oligomers, and each low molecule itself must contain uniform functional groups, so that it can obtain excellent coatings by cross-linking in the process of film formation, so as to achieve the performance of traditional coatings In addition, the solvent with strong solubility should be selected to reduce the viscosity more effectively The construction advantage of HSC is that there is no need to change the current construction equipment Just make a little change on the device In fact, airless spraying and electrostatic airless spraying equipment are most suitable With the introduction of ultra-high electrostatic disk and cup, the spray behavior of the coating is greatly improved by using the pseudoplastic characteristics of HSC under the high rotation speed of electrostatic disk and cup Supercritical fluid spraying is a new spraying method, which uses liquid COz at critical temperature and pressure of 313cc and 74MPa respectively This co shows similar solubility to hydrocarbons, but they are not considered VOCs 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,