Water-based derusting primer

Abstract

The invention belongs to the technical field of environment-friendly coatings and specifically relates to a water-based derusting primer. The water-based derusting primer comprises the following raw materials in parts by weight: 1-5 parts of cellulose, 1-5 parts of pH regulator, 1-5 parts of wetting agent, 2-8 parts of dispersing agent, 15-25 parts of anti-freezing agent, 2-8 parts of defoaming agent, 90-110 parts of iron titanium powder, 90-110 parts of iron oxide red powder, 40-60 parts of zinc phosphate, 1-5 parts of derusting agent, 20-40 parts of coalescing agent, 1-5 parts of preservative, 150-200 parts of water and 450-550 parts of water-based acrylic emulsion. The water-based derusting primer provided by the invention has a firm and compact film layer, has ultrahigh adhesive force,has excellent dedusting and dust-proof effects, contains no substances, such as benzene and formaldehyde which are harmful to a human body, is free from volatile gas and is beneficial to popularization and application.

Description

technical field [0001] The invention relates to the technical field of environmental protection coatings, in particular to a water-based rust-removing primer. Background technique [0002] The primer is the first layer of the paint system. Applying one or more layers of sealing primer before painting the topcoat can not only save the decoration cost, but in the long run and decorative effect, the primer will get twice the result with half the effort, and the primer will Good adhesion makes the wall smoother, makes the topcoat easier to brush, increases the fullness of the topcoat while ensuring the uniform absorption of the topcoat, so that the paint system can play the best effect. Nowadays, with the development of architectural coatings The requirements are getting higher and higher, and the requirements for the primer are also increasing. Not only must it be wear-resistant, anti-corrosion and moisture-proof, but also need to be green and environmentally friendly, and it i...

AI Technical Summary

Problems solved by technology

[0002] The primer is the first layer of the paint system. Applying one or more layers of sealing primer before painting the topcoat can not only save the decoration cost, but in the long run and decorative effect, the primer will get twice the result with half the effort, and the primer will Good adhesion makes the wall smoother, makes the topcoat easier to brush, increases the fullness of the topcoat while ensuring the uniform absorption of the topcoat, so that the paint system can play the best effect. Nowadays, with the development of architectural coatings The requirements are getting higher and higher, and the requirements for the primer are also increasing. Not only must it be wear-resistant, anti-corrosion and moisture-proof, but also need to be green and environmentally friendly, and it is non-toxic to the human body. However, most of the coating products on the market currently contain Some irritating chemical additives will have a certain impact on the human body

[0003] In addition, the surface of metal materials is susceptible to the invasion of various corrosive substances in the atmosphere and causes rust. Currently, various organic solvent oil-based primers are used for metal antirust. Although they have certain antirust functions, due to the use of organic Solvents, and organic solvents are flammable, toxic, volatile, pollute the environment, and there are factors such as unsafe transportation and construction, which lead to restrictions on the use of such organic solvent oily primers. In addition, the primers currently on the market The paint only has a single anti-rust function and has no rust-removing effect. Therefore, the rust layer on the metal surface must be removed before coating. If the surface treatment is not good, it will greatly affect the adhesion of the coating film to the substrate and cause peeling off.

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