Zinc-enriched heavy-duty corrosion protective powder coating

Abstract

The invention discloses a zinc-enriched heavy-duty corrosion protective powder coating. The powder coating contains the following raw materials in parts by weight: 20-35 parts of epoxy resin, 20-35 parts of polyester resin, 3-5 parts of a curing agent, 0-35 parts of titanium dioxide, 0-40 parts of barium sulfate, 0.8-1.5 parts of an acrylic leveling agent, 0.4-2.5 parts of an acrylic wetting agent, 0-1.8 parts of benzoin, 0-1.2 parts of stearic acid, 0-5 parts of a flatting agent, 0-1 part of polyethylene wax, 0-1 part of polyamide wax, 0-1 part of an antifoaming agent, 0-1 part of polytetrafluoroethylene wax, 0-1 part of a charge control agent, 0-1 part of organobentonite, 0-2 parts of a catalyst and 5-40 parts of zinc powder. The zinc-enriched heavy-duty corrosion protective powder coating disclosed by the invention has excellent chemical resistance and storage stability as well as excellent mechanical property and leveling performance and extremely high salt spray resistance property, is applicable to a severe salt-spray environment, serves as an anticorrosive primer and is widely applicable to coating of experimental equipment, automobile parts, iron pipes, steel cylinders andthe like.

Description

technical field [0001] The invention relates to a zinc-rich heavy-duty anti-corrosion powder coating, which belongs to the technical field of powder coatings. Background technique [0002] Heavy-duty anti-corrosion coating is a kind of coating that can be used effectively for a long time under severe corrosive environment. The surface treatment and coating construction and maintenance requirements are also very strict. This type of paint used to be liquid paint, and usually requires multiple coats to meet the requirements. [0003] Powder coating is a solvent-free, 100% solids powder coating. It has the characteristics of no solvent, no pollution, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. In recent years, due to its safety, high efficiency, and pollution-free characteristics, powder coatings account for an increasing proportion in the field of heavy-duty anti-corrosion. At...

AI Technical Summary

Problems solved by technology

[0004] The development of heavy-duty powder coatings and the expansion of application fields have also put forward many new requirements for raw material production and powder formulation design. A single powder coating formulation can no longer meet the needs of different applications. Therefore, new materials and coatings must be continuously developed. Formulation technology

Images