High-stability protective paint

Abstract

The invention discloses a high-stability protective paint which is prepared from the following raw materials in percentage by mass: 60-80% of aromatic water-based polyurethane emulsion, 5-10% of silica sol, 3-8% of talcum powder, 1-3% of emulsified silicone oil, 0.1-0.5% of acrylate copolymer ammonium salt solution, 0.5-1% of alkali-swellable acrylic thickener, 0.3-0.6% of polyether polyester modified organosiloxane, 0.1-0.5% of acrylic acid copolymer potassium salt, 0.1-0.5% of polyether-modified organic silicon and the balance of distilled water. The aromatic water-based polyurethane emulsion is prepared from the following raw materials in parts by mass: 40-80 parts of toluene diisocyanate, 40-80 parts of polypropylene glycol, 3-10 parts of dimethylolpropionic acid, 50-80 parts of butanone, 5-12 parts of ethylenediamine, 3-11 parts of triethylamine, 1-3 parts of dibutyltin dilaurate and 40-80 parts of distilled water. The paint prepared by the method can effectively perform sealed protection on the protected object, thereby preventing the protected object from pollution, corrosion and damage. Meanwhile, the paint has the advantages of higher stability, higher cohesive force, favorable peelability and higher coated film strength.

Description

technical field [0001] The invention relates to the field of packaging and decoration, in particular to high-stability protective coatings. Background technique [0002] In order to prevent the materials or semi-products exposed to the atmosphere from being polluted, corroded and damaged, and prolong their service life, they are usually coated with good protective and peelable coatings on their surfaces for effective and temporary maintenance. Archive protection. In this way, it can not only isolate the invasion of air, salt spray, and microorganisms from the outside to achieve anti-corrosion effect; but also achieve the effect of cleaning and decontamination by adsorbing pollutants. Compared with solvent-based protective coatings, water-based protective coatings are safer and more environmentally friendly, so they are widely used in the field of product packaging and decoration. However, the existing water-based protective coatings still have the disadvantages of low fil...

AI Technical Summary

Problems solved by technology

However, the existing water-based protective coatings still have the disadvantages of low film strength, poor peelability and single protective performance.