General knowledge of coating: polyurethane paint performance and development prospect

Core tip: polyurethane paint is polyurethane paint It has strong and tough paint film, full luster, strong adhesion, water resistance, wear resistance and corrosion resistance It is widely used in advanced wood furniture and metal surface Its disadvantages mainly include the problems of wet foaming, film pulverization and so on Like polyester paint, it also has the problem of yellowing Polyurethane paint is a kind of common paint, which can be divided into two-component polyurethane paint and one component polyurethane paint Two component polyurethane coating is generally composed of isocyanate prepolymer (also known as low molecular carbamate polymer) and hydroxyl resin 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: polyurethane paint is polyurethane paint It has strong and tough paint film, full luster, strong adhesion, water resistance, wear resistance and corrosion resistance It is widely used in advanced wood furniture and metal surface Its disadvantages mainly include the problems of wet foaming, film pulverization and so on Like polyester paint, it also has the problem of yellowing Polyurethane paint is a kind of common paint, which can be divided into two-component polyurethane paint and one component polyurethane paint The two-component polyurethane coating is generally composed of isocyanate prepolymer (also known as low molecular carbamate polymer) and hydroxyl resin, commonly known as curing agent component and main agent component This kind of coating has many varieties and wide application range It can be divided into acrylic polyurethane, alkyd polyurethane, polyester polyurethane, polyether polyurethane, epoxy polyurethane and other varieties according to different hydroxyl components Generally, they have good mechanical properties, high solid content and good performance in all aspects It is a kind of coating with great development prospect The main application directions are wood coating, automobile repair coating, anticorrosive coating, floor coating, electronic coating, special coating, etc The disadvantage is that the construction process is complex, the requirements for the construction environment are very high, and the paint film is easy to produce disadvantages One component polyurethane coating mainly includes urethane oil coating, moisture curing polyurethane coating and closed polyurethane coating The application area is not as wide as the two-component coating, mainly used in floor coating, anti-corrosion coating, pre coil coating, etc., and its overall performance is not as comprehensive as the two-component coating Properties: polyurethane resin as the main film-forming material of the coating According to its composition and film forming mechanism, it can be divided into five categories: polyurethane modified oil coating, moisture curing polyurethane coating, closed polyurethane coating, catalytic curing polyurethane coating and hydroxyl curing polyurethane coating This kind of paint film is bright, full-bodied, hard, wear-resistant, oil-resistant, acid resistant, chemical resistant and industrial waste gas, with good electrical performance, and can be mixed with a variety of resins, and the formula can be adjusted in a wide range to meet different needs Widely used in wood, automobile, aircraft, machinery, electrical appliances, instruments, plastics, leather, paper, fabric, petrochemical and other aspects Polyurethane coating is a kind of common coating at present, which can be roughly divided into two-component polyurethane coating and one component polyurethane coating The two-component polyurethane coating is generally composed of isocyanate prepolymer (also known as low molecular carbamate polymer) and hydroxyl resin, commonly known as curing agent component and main agent component Global coatings network has learned that there are many varieties of this kind of coating, and its application range is very wide According to the different hydroxyl components, it can be divided into acrylic polyurethane, alkyd polyurethane, polyester polyurethane, polyether polyurethane, epoxy polyurethane and other varieties It is a kind of coating with a very promising future at present The research and development of polyurethane paint in China began in 1956, but only in 1965 did small quantities of commercial coatings be produced In 1971, 1,6-hexadiisocyanate biuret was prepared for the first time, which opened up the research and application of aliphatic polyurethane paint After the reform and opening up in 1980s, the introduction of isocyanate and polyether polyol production lines solved the problem of raw material supply The main application fields and market prospects of polyurethane coatings are wood coatings, automobile repair coatings, anticorrosive coatings, floor coatings, electronic coatings, special coatings, polyurethane waterproof coatings, etc The disadvantage is that the construction process is complex, the requirements for the construction environment are very high, and the paint film is easy to produce disadvantages One component polyurethane coating mainly includes urethane oil coating, moisture curing polyurethane coating and closed polyurethane coating It is mainly used for floor coating, anticorrosive coating, pre coiled material coating, etc its overall performance is not as comprehensive as two-component coating Polyurethane coating is widely used In addition to the above applications, acrylic polyurethane can be used as magnetic recording coating, polyester polyurethane as electrical insulation coating, transparent elastic polyurethane as antifogging coating, etc it can be used in various fields such as automobile industry, aviation, marine, construction, plastic, electromechanical, petrochemical, etc The varnish of polyurethane paint is called polyurethane varnish 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,