Novel preparation method of imitation electroplating powder paint

Abstract

The invention discloses a novel preparation method of imitation electroplating powder paint. The preparation method comprises the steps of allowing a construction party to uniformly spray metal primerpowder onto the surface of a metal workpiece via an electrostatic spraying and high-temperature solidification technology, allowing the powder to be solidified on the surface of the workpiece to forma 80-100um coating with a metal light texture, and after complete solidification and cooling of the coating, uniformly spraying transparent resin powder onto the surface of the workpiece for solidification on the surface of the metal coating to form a 60-80um transparent protective coating. The metal primer powder and transparent finish powder are coated to form a surface coating of the coated workpiece; the surface of the workpiece has a metal luster; a sensitizer and high-gloss wax allows the metal luster of the surface of the workpiece to be more obvious; at the same time, due to double-layer application, the workpiece has high corrosion resistance, adhesion, rigidity and impact resistance; and the transparent finish powder exerts a good protection effect on the metal powder coating and further improves glossiness of the metal coating.

Description

technical field [0001] The invention relates to the field of electroplating powder coatings, in particular to a novel preparation method of imitation electroplating powder coatings. Background technique [0002] Powder coating refers to a new type of solvent-free 100% solid powder coating, which is made by mixing, crushing and sieving film-forming resins, additives, pigments, fillers, etc., and the coating construction requires electrostatic spraying and baking Film-forming, has the characteristics of solvent-free, pollution-free, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. The powder coating is a completely different form from the general coating. It exists in the state of fine powder Yes, because no solvent is used, it is called powder coating. Powder coating is divided into thermoplastic powder coating and thermosetting powder coating. Thermoplastic powder coating is composed...

AI Technical Summary

Problems solved by technology

Thermoplastic powder coatings began to appear in 1950. It melts at the spraying temperature and solidifies into a film when cooled. Due to the simple processing and spraying methods, the powder coating only needs to be heated and melted, leveled, cooled or extracted to solidify into a film. Requires complex curing devices, most of the raw materials used are common polymers in the market, and can meet the performance requirements under most conditions, but there are also some shortcomings, such as high melting temperature, low coloring level, and adhesion to metal surfaces However, commonly used thermoplastic powder coatings still exhibit some unique properties, among which polyolefin powder coatings have excellent solvent resistance, polyvinylidene fluoride coatings have outstanding weather resistance, and polyamides have excellent wear resistance PVC has a good price-performance ratio, and thermoplastic polyester powder coatings have the advantages of beautiful appearance and high artistry. These characteristics make thermoplastic powder coatings occupy a large proportion in the coatings market