Multifunctional nontoxic environment-friendly water-based paint and preparation method thereof

Abstract

The invention discloses a multifunctional nontoxic environment-friendly water-based paint and a preparation method thereof. The paint consists of the following compositions in proportion: 20-50 percent of 209 resin, 4-20 percent of phosphoric acid, 0.5-2.0 percent of zinc dihydrogen phosphate, 2-10 percent of tartaric acid, 2-10 percent of azo dyes, 1.5-2.2 percent of ultrafine iron oxide pigment, and the rest amount of water. The preparation process comprises the steps that: 1. a large part of 209 resin and phosphoric acid are stirred for 2.0-2.5 hours at a constant temperature of 28-32 DEG C; 2. the tartaric acid, zinc dihydrogen phosphate and hot water with the temperature of 70-90 DEG C are sufficiently stirred; 3. the azo dyes, ultrafine iron oxide pigment and a small part of 209 resin are stirred sufficiently and uniformly; 4. the two liquids are added to the solution in the first step to be continuously stirred for 1.0-1.2 hours; and 5. the mixed liquid is roll-pressed by a three-roll mill for 2.0-2.5 hours. The water-based paint provided by the invention is nontoxic, free of pungent odor, strong in antirust ability, and short in curing time, cannot cause the rusty phenomenon during the curing process, can prevent strong solvent from dissolving, and has good de-rusting performance and chemical medium resistance.

Description

technical field [0001] The invention relates to a paint, in particular to a multifunctional non-toxic and environment-friendly water-based paint and a preparation method thereof, which is especially suitable for use as an anti-rust primer for steel materials and for iron and steel equipment maintenance and anti-rust. Background technique [0002] At present, water-based coatings generally have the following defects: one is that corrosion will occur during the curing process, which has become a common problem in many water-based coatings; the other is that water-based coatings are easily dissolved by strong solvents and lose their anti-rust effect; The third is that it is not suitable for construction in environments where water often flows, such as caves, ship bottoms, and sluice gate surfaces. In the prior art, although relevant papers such as "improving the curing speed of water-based paint" and "research on rust-removing function" have been reported in the literature,...

AI Technical Summary

Problems solved by technology

[0002] At present, water-based coatings generally have the following defects: one is that corrosion will occur during the curing process, which has become a common problem in many water-based coatings; the other is that water-based coatings are easily dissolved by strong solvents and lose their anti-rust effect; Third, it is not suitable for construction in environments where water often flows, such as caves, ship bottoms, and sluice gate surfaces.

In the prior art, although relevant papers such as "improving the curing speed of water-based paint" and "research on rust-removing function" have been reported in the literature, the above-mentioned problems have not been well resolved so far, making the water-based paint Use is limited, which is where existing technologies fall short