Method for preparing waterborne silicate zinc-enriched antirust and antiseptic paint from surface-activated and grafted glass flakes

Abstract

The invention discloses a method for preparing a waterborne silicate zinc-enriched antirust and antiseptic paint from surface-activated and grafted glass flakes. The method comprises adding and mixingxylene into the glass flakes for dispersion, under nitrogen protection, dropwise adding in KH560 hydrolysate, increasing the temperature for reaction, washing reaction products with xylene and tetrahydrofuran, performing Soxhlet extraction and vacuum drying to obtain surface-activated and grafted KH560 glass flakes, adding and mixing mica iron oxide into absolute methylbenzene, performing ultrasonic treatment, under nitrogen protection, dropwise adding in a mixture of toluene diisocyanate, dibutyltin dilaurate and absolute methylbenzene for reaction, increasing the temperature for further reaction, filtering and repeatedly washing reaction products with absolute methylbenzene to obtain a toluene diisocyanate-modified mica iron oxide filler; mixing film forming materials into a sanding anddispersing mixer, then mixing in deionized water and zinc powder, and then continuing to mixing in the toluene diisocyanate-modified mica iron oxide filler to obtain the waterborne silicate zinc-enriched antirust and antiseptic paint.

Description

technical field [0001] The invention belongs to the technical field of chemical pumps, and in particular relates to a method for preparing water-based silicate zinc-rich antirust and anticorrosion paint by using surface-activated grafted glass flakes. Background technique [0002] In chemical or petrochemical production, chemical pumps need to work in high temperature, low temperature, high pressure, flammable, explosive, toxic and strong corrosive media, and have high performance requirements. Chemical pumps can also work under high inlet pressure, high viscosity, Working under the conditions of small flow and high cavitation, the performance requirements of chemical pumps are high. When manufacturing chemical pumps, a layer of corrosion-resistant paint is usually coated on the pump body to protect the pump body. The impellers of chemical pumps also need to be in contact with a large amount of corrosive substances, and also require high surface corrosion resistance. [000...

AI Technical Summary

Problems solved by technology

However, due to the significant differences in the chemical structure and physical form of glass flakes and polymers, the compatibility between the two is poor, which seriously affects the anti-corrosion performance of coatings.