Low temperature curing powder coatings will be the fastest developing category in the global low temperature curing coatings market in the next few years. This type has the characteristics of zero VOC emission. Compared with conventional liquid coatings, it can obtain a thicker film at one time without sagging. In addition, it is superior to conventional coatings in other properties, such as corrosion resistance, film appearance, stone impact resistance, wear resistance, durability, cost performance, construction time, etc.
Low temperature curing powder coatings and coatings are loved by people because of their advantages of saving resources, energy, pollution-free, high efficiency and easy to complete automatic consumption. The output is growing rapidly, and has become one of the development directions of the coating industry. The curing conditions of ordinary powder coatings are mostly 150180t, some as high as 200 min, and the curing time is 2030min. There are defects of high baking temperature and long time. The higher baking temperature brings considerable difficulties to the coating of heat-resistant coatings such as plastics, wood and solder metal parts, which limits the expansion of the application range of powder coatings. The baking time is long, the consumption cycle of the product is long, and the consumption efficiency is low. How to effectively reduce the curing temperature and curing time of powder coatings has been the concern of the powder coatings industry. Considering the energy saving, cost reduction, efficiency improvement and application expansion of powder coatings, the development of low temperature curing powder coatings is of great significance.
Low temperature curing powder coating is a kind of energy-saving and environment-friendly product, which is an inevitable trend of powder coating development, but it does not constitute a trend of key research and combined research. This situation not only reflects the gap between China and the United States in technology, education, legislation, norms and scientific research, but also reflects the institutional cover of China's Government in scientific and technological innovation investment, and also reflects that the scope, strength, position and voice of powder coating enterprises are not heavy. Therefore, China has a long way to go to develop energy-saving powder coatings.