High-temperature-resistant high-radiance anticorrosive paint

Abstract

The invention relates to a high-temperature-resistant high-radiance anticorrosive paint. The paint is prepared from the following raw materials in parts by weight: 5-10 parts of cordierite micro powder, 4-8 parts of ferroferric oxide micro powder, 2-6 parts of chromic oxide micro powder, 6-10 parts of cobalt oxide micro powder, 4-10 parts of ferromanganese spinel micro powder, 15-20 parts of borosilicate glass powder, 3-5 parts of low-melting-point glass powder modified graphene, 30-50 parts of binding agent. 0.1-0.2 part of a dispersing agent, 0.03-0.1 part of a wetting agent, 0.15-0.3 part of a thickening agent and 0.05-0.15 part of a defoaming agent. The anticorrosive paint disclosed by the invention has low-temperature and high-temperature anticorrosive properties and also has relatively high infrared radiance.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a high-temperature-resistant high-radiation rate anti-corrosion coating. Background technique [0002] The metal heating element or heat exchanger will be oxidized and corroded when used in high temperature air for a long time, which will affect the service life of the metal heating element or heat exchanger; on the other hand, metal has good thermal conductivity, but the metal's ability to radiate heat Low, the infrared emissivity of general metals is in the range of 0.5-0.8, while the infrared emissivity of ceramics can reach above 0.9. Therefore, coating a layer of ceramic anti-corrosion coating with high temperature resistance and high emissivity on the surface of the metal heating element or heat exchanger can greatly improve the service life and heat conversion efficiency of the metal heating element, so as to achieve the effect of energy saving and emission...

AI Technical Summary

Problems solved by technology

The invention patent (201811596519.5) discloses an inorganic high-temperature ceramic wear-resistant anti-corrosion coating. The high-temperature ceramic anti-corrosion coating prepared by using inorganic adhesives, ceramic compositions, and low-melting glass as main raw materials has certain high-temperature anti-corrosion performance and medium Low temperature wear resistance, but the coating does not have the functions of low temperature corrosion resistance and infrared radiation rate

The invention patent (application number 201811606111.1) discloses a highly stable heat-absorbing energy-saving coating, which mainly uses electro-fusion raw materials with high absorption / high radiation performance and silicone resin or ceramic resin as the main raw materials, and the prepared enhanced heat-absorbing energy-saving Coatings have high infrared emissivity, but poor oxidation and corrosion resistance at high temperatures

The invention patent (application number 201910384006.6) discloses a kind of anti-corrosion coating and its preparation method. It mainly uses graphene powder, zinc powder and water-based epoxy resin as the main raw materials to prepare a kind of anti-corrosion coating with good anti-corrosion and stability. However, the use temperature is not high; the invention patent (application number 201910068018.8) discloses a graphene-based organic and inorganic high temperature resistant anti-corrosion coating and its preparation method, using water-based inorganic salt adhesive, graphene and silicone resin as the main raw materials to prepare a A high temperature resistant anti-corrosion coating, but the coating can only be used in medium and low temperature environments and has only a single anti-corrosion performance

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