Coating classification: UV curable powder coating

The key points are as follows: UV curable powder coating is a new coating technology which combines the powder coating technology and UV curable technology It combines the advantages of traditional powder coating technology and liquid UV curable coating technology, and overcomes the disadvantages of the two kinds of coatings to a certain extent The traditional thermosetting powder coating requires to cure at 180 ℃ ~ 200 ℃ for 15 ~ 30 minutes, which limits the application of this technology in thermosensitive substrate At present, UV curable powder coating with melting point of 100 ℃ ~ 120 ℃ is developing rapidly, which solves this problem And tradition 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: UV curable powder coating is a new coating technology combining powder coating technology and UV curable technology It combines the advantages of traditional powder coating and liquid UV curable coating technology, and overcomes the disadvantages of the two types of coating to a certain extent The traditional thermosetting powder coating requires to cure at 180 ℃ ~ 200 ℃ for 15 ~ 30 minutes, which limits the application of this technology in thermosensitive substrate At present, UV curable powder coating with melting point of 100 ℃ ~ 120 ℃ is developing rapidly, which solves this problem Compared with the traditional thermosetting powder coating, the melting leveling and curing of the UV curable powder coating are two independent processes First, the powder particles are heated by infrared radiation to melt leveling, and then the UV radiation curing is carried out, so that the smooth coating can be obtained Due to the low melting temperature of UV curable powder coating, it can be widely used in the coating of thermosensitive substrate (such as paper, rubber, plastic), which greatly expands the application space of powder coating UV curable powder coating has no active diluent, low film shrinkage and strong adhesion with substrate A thick coating with good quality can be formed by one-time coating, and the powder splashed by coating is easy to recycle Therefore, compared with UV curable liquid coating, it has higher technical, economic and ecological advantages In the early 1990s, UV curable powder coating was developed in foreign countries In the mid-1990s, it was commercialized and developed rapidly At present, many UV curable powder coatings have been applied to wood, metal and paper substrates Domestic UV curable powder coatings have also been developed Domestic scientists modified the hyperbranched polyester with hexadecyl chloride and octadecyl isocyanate respectively The powder hyperbranched oligomer obtained has the molecular structure of amorphous "core" and crystallizable "shell", which greatly improves the apparent and mechanical properties of the film In addition, due to the presence of a large number of UV curable acrylate groups at the end group, the powder hyperbranched oligomer can be cured rapidly under melting irradiation A scientist has studied the UV curable powder coating of branched polyether amide Based on the hydroxy terminated branched polyether amide, two kinds of UV curable semi crystalline polymers dpea-a and dpea-b with different concentrations were synthesized by reaction with different proportions of TDI, hea and octadecyanate Through DSC test, two kinds of UV curable semi crystalline polymers have formed different microcrystals, and both meet the requirements of UV curable powder coating for strength and TM 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,