Rust-proof fluorocarbon powder coating

Abstract

The invention discloses a rust-proof fluorocarbon powder coating. The rust-proof fluorocarbon powder coating is prepared from the following raw materials in parts by weight: 50-80 parts of chlorotrifluor ethylene-ethylene copolymer, 2-10 parts of rust-proof phosphorus containing pigment, 1-5 parts of flash-rust inhibitor, 20-35 parts of nanoscale filler, 15-30 parts of polyamide resin plasticizer, 3-10 parts of stabilizer, and 5 parts of solvent ethylene glycol. The fluorocarbon powder coating has excellent comprehensive physical and chemical properties and can form even films rapidly; a 0.13-0.18mm thick coating can resist mediums such as hydrochloric acid, fluoboric acid, sulfuric acid, sodium hydroxide and the like; the coating is firmly stuck and even can resist tens of thousands of times of periodic bending; furthermore, the coating of the fluorocarbon coating has no pinhole, has a bright and clean surface with no dirt stuck on, resists flash-rust, does not peel off or foam, and can prevent rust for long time.

Description

technical field [0001] The invention relates to an antirust coating, in particular to a fluorocarbon antirust powder coating, which belongs to the technical field of coatings. Background technique [0002] Seawater is the largest and highly corrosive natural electrolyte in nature. Seawater contains almost all chemical elements on the earth, and its composition is very complex. In addition, seawater also contains dissolved oxygen, marine life and decaying organic matter. These substances have caused great harm to metal components such as various marine transportation tools, oil production platforms, and marine equipment. With the development of coastal transportation, industrial production, and national defense construction in various countries, the threat of seawater and marine atmospheric corrosion has also become more and more serious. The more prominent, the more applicable and economical marine engineering protection method is to apply marine coatings that resist seawat...

AI Technical Summary

Problems solved by technology

Fluorocarbon coatings refer to coatings made of fluorine-containing copolymer resins or copolymers of fluoroolefins and other monomers as the main film-forming substance, which are processed, modified, and ground. At present, there are mainly four types of fluororesin coatings that are widely used. Vinyl fluoride (PTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), etc. These coatings have excellent weather resistance, solvent resistance and high temperature resistance, but they must be baked at high temperature to melt and form a film. Not suitable for on-site construction, which limits the development of the coating itself

In addition, organic solvent-based fluororesin coatings are also widely used. Fluororesin coatings dissolved in organic solvents can form films at lower temperatures, expanding their application range, such as vinylidene fluoride / tetrafluoroethylene / hexafluoropropylene Copolymers, vinylidene fluoride / hexafluoropropylene binary copolymer coatings, etc., but the accumulation of organic solvents in the marine environment is harmful to the seawater environment and marine organisms, limiting its full use

The development and application of water-soluble fluorocarbon coatings has gradually attracted people's attention, but at present, the types of water-soluble fluorocarbon coatings are relatively single, and the film-forming effect is not ideal

Images