Method for manufacturing acrylic ester emulsion containing phosphate group for antiseptic paint

Abstract

The invention relates to a method for manufacturing acrylic ester emulsion which contains phosphate groups and is used on anticorrosion coatings, which is characterized in that a molecular structure of the emulsion contains phosphate groups, in the process of film forming of emulsion, phosphate group can form compact phosphate protecting file, metal surface is deactivated, water molecules and other salt ions can be prevented from contacting with metal, thereby the manufacturing method has a rust-proofing method. The formula of the invention is that acrylate monomer which occupies 80%-99% of the total amount of polymeric monomer, acrylate monomer with contains phosphate group which occupies 1%-2% of the total amount of polymeric monomer, emulsifying agent which occupies 3%-10% of the total amount of polymeric monomer, water-soluble initiator which occupies 0.2-1% of the total amount of polymeric monomer and deionized water which occupies 70-50% of the total amount of products.

Description

technical field [0001] The invention relates to a method for manufacturing acrylate emulsion, especially a method for manufacturing phosphate group-containing acrylate emulsion used for anticorrosion coatings. Background technique [0002] At present, in the field of anti-corrosion coatings, solvent-based coatings are still the main ones, but because the solvents of the coatings are volatile, they cause environmental pollution and harm to human health, and waste energy from petroleum. Enhanced, water-based solvent-based coatings are increasingly becoming an urgent task. [0003] In water-based anti-corrosion coatings, ① when water-based alkyd resin is used as the film-forming material, the drying principle is that the double bonds on the alkyd resin are oxidatively cross-linked in the air. Because the speed is very slow, a drier is required , and the drying performance of the drier is affected by water and pigment fillers, and the drying speed is often unsatisfactory; non-...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of anti-corrosion coatings, solvent-based coatings are still the main ones, but because the solvents of the coatings are volatile, they cause environmental pollution and harm to human health, and waste energy from petroleum. Reinforced, water-based solvent-borne coatings are increasingly becoming an urgent task

[0003] In water-based anti-corrosion coatings, ① when water-based alkyd resin is used as the film-forming material, the drying principle is that the double bonds on the alkyd resin are oxidatively cross-linked in the air. Because the speed is very slow, a drier is required , and the drying performance of the drier is affected by water and pigment fillers, and the drying speed is often unsatisfactory; non-toxic solvent to ensure that the resin can be dissolved in water, so the curing agent must be added in proportion before use, and there is also the problem of pot life, which is inconvenient to use, and the hydrophilic solvent also has a certain impact on the environment; ③Use two-component acrylic acid When the emulsion is used as the base material of the film-forming material, there are also problems of adding a curing agent before use and the pot life, and its curing agent-hydrophilic isocyanate is easy to react with water, so there are many side reactions.