Special water-borne rust-associated anti-rust coating having antibacterial and antifungal functions and applied to pump valve

Abstract

The invention discloses a special water-borne rust-associated anti-rust coating having antibacterial and antifungal functions and applied to a pump valve. The special water-borne rust-associated anti-rust coating is prepared from raw materials in parts by weight as follows: 65-70 parts of methyl methacrylate, 60-65 parts of styrene, 0.5-0.6 parts of ammonium persulfate, 4-5 parts of phosphate ester monomers, 20-24 parts of deionized water, 2-3 parts of SDS (sodium dodecyl sulfate), 35-40 parts of glass flakes, 1-1.2 parts of a silane coupling agent KH560, 30-35 parts of an ethanol solution with the concentration of 75wt%, 40-43 parts of a sodium hydroxide solution with the concentration of 10wt%, 2-3 parts of isopropanol, 3-4 parts of catechol, 9-11 parts of nano-zinc oxide, 1-1.2 parts of dimethyl fumarate, 2-3 parts of absolute ethyl alcohol, 3-4 parts of a silver loaded nano-zirconium phosphate antimicrobial agent, 1.5-2 parts of petroleum sodium sulfonate, 19-21 parts of calcium carbonate and proper amount of water. The coating can be directly sprayed to a pump valve material, substrate surface treatment is not needed, and the coating has excellent antibacterial and antifungal performance and is applicable to the pump valve in a humid environment.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an antibacterial and anti-mildew water-based anti-rust coating for pumps and valves. Background technique [0002] The working environment of the pump and valve is diverse and harsh, and the requirements for the material are very high. At present, the materials used for the pump and valve are various, and the technology has made great progress, but there are still many problems, especially when it is used to transport liquids. The anti-rust performance of the valve is very high, and ordinary paints often cannot meet the needs of the environment, which requires the modification of the coatings for multi-pump valves, so as to prepare more suitable coatings for pump valves. [0003] In order to ensure the anti-corrosion quality of the coating, the traditional anti-corrosion coating needs to carry out a thorough surface treatment on the steel by certain means before construction. Th...

AI Technical Summary

Problems solved by technology

[0002] The working environment of the pump and valve is diverse and harsh, and the requirements for the material are very high. At present, the materials used for the pump and valve are various, and the technology has made great progress, but there are still many problems, especially when it is used to transport liquids. The anti-rust performance of valves is very high, and ordinary paints often cannot meet the needs of the environment, which requires the modification of coatings for multi-pump valves, so as to prepare more suitable coatings for pump valves

[0003] In order to ensure the anti-corrosion quality of the coating, the traditional anti-corrosion coating needs to carry out a thorough surface treatment on the steel by certain means before construction. The cost of the traditional surface treatment process accounts for about 30%-40% of the total cost of coating. The cost of the paint itself only accounts for about 19%, and traditional surface treatment methods are prone to produce a lot of dust pollution and noise pollution, especially in some special occasions such as complex steel structure dead corners that cannot even be surface treated by traditional sandblasting methods. Therefore, it is of great significance to find a treatment method that is more environmentally friendly and cost-effective.