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Powder coating powder

Powder coating powder

  • Classification:Indoor powder coating
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  • Date of issue:2020-12-19 14:20:00
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  1. Powder coating plastic powder heat resistant powder coating plastic powder refers to the powder coating which can withstand the temperature above 200 ℃ for a long time, has a good coating film, can make the protected object work normally in high temperature environment. the mechanism of thermal stability of polymer, the heat resistance of polymer mainly depends on its molecular structure. Therefore, the thermal stability of the polymer can be improved by introducing large more polar side groups in the main chain to increase the intermolecular interaction force. Another way to improve the heat resistance of powder coatings is to add heat-resistant pigments fillers into the polymer. The common pigments fillers are aluminum powder, mica powder, stainless steel powder, cadmium powder, silicon dioxide, etc. 2. Functional powder coating plastic powder functional powder coating plastic powder is a kind of surface coating material with special function special application. It can only play the role of traditional protection decoration, but also give the material a variety of special functions, including insulation, conductivity, antifouling, heat resistance, flame retardant, radiation protection other functions. The development production of functional plastic powder powder coating in China is just in the beginning, for example, the products produced by Xinxiang Zhuolong still have a big gap compared with foreign countries. 3. The anticorrosive plastic powder coating is mainly epoxy phenolic resin powder coating, which is based on epoxy resin phenolic resin as film-forming materials, the two cross-linked to form a film. Powder coating plastic powder the epoxy resin used in this kind of coating is generally made of high molecular weight 1400 2900. Epoxy resin itself has the characteristics of good adhesion, softness alkali resistance, while phenolic resin has excellent properties of acid alkali resistance, solvent resistance, heat resistance, wet cold resistance, the organic combination of the two becomes the ideal type of anti-corrosion materials. Due to the weak reaction activity between epoxy resin phenolic resin, the film forming curing temperature of the coating should be carried out under higher conditions. The appropriate amount of imidazole catalyst can reduce the curing temperature.

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