Aqueous environment-friendly packaging steel drum paint and preparation method thereof

Abstract

The invention relates to an aqueous environment-friendly packaging steel drum paint, which is prepared by mixing the following compositions in part by weight: 20 to 70 parts of aqueous solution of acrylic resin with a solid content of 30 to 80 percent and/or aqueous solution of epoxy resin with the solid content of 30 to 80 percent, 4 to 10 parts of aqueous solution of amino resin with the solid content of 60 to 98 percent, 1 to 5 parts of organic amine, 1 to 50 parts of filling materials with the granularity of more than 2,000 meshes, 0.5 to 10 parts of color paste, 0.2 to 2 parts of wetting levelling agent, 0.2 to 2 parts of thickening agent, 0.1 to 0.8 part of antifoaming agent, 1 to 5 parts of adhesive force accelerant, 0.2 to 5 parts of catalyst, 0 to 30 parts of alcohol diluting solvent and/or 0 to 5 parts of non-toxic ether diluting solvent, and 20 to 50 parts of deionized water. The aqueous environment-friendly packaging steel drum paint has the advantages of wide application range, high rigidity, good flexibility, strong adhesive force and good anti-scraping and anti-collision properties and environmental protection; and meanwhile, the invention discloses a preparation method for the aqueous environment-friendly packaging steel drum paint.

Description

technical field [0001] The invention relates to a coating composition of an organic polymer compound, in particular to a water-based environmental protection packaging steel drum paint and a preparation method thereof. Background technique [0002] With the continuous improvement of people's material living standards, water-based environmentally friendly packaging steel drum paint has been widely used in product packaging in various industries (such as food, grain and oil, petroleum, chemical, pharmaceutical products) to improve the internal and external anti-corrosion and environmental protection of products. Health and decorative effect. The existing packaging steel drum paint is mainly composed of oily resin film formers, pigments and fillers containing heavy metals, and toxic solvents. The film formers are generally formed by crosslinking and curing alkyd, polyester resin or acrylic resin and amino resin. Acrylic resin It is widely used because of its good weather resis...

AI Technical Summary

Problems solved by technology

[0003] (1) Most of them can only be used for the outer surface coating of petroleum, chemical and food, grain, oil, medicine and other packaging barrels with low health requirements without environmental protection and health requirements, and cannot be used for the inner coating of barrels with environmental protection and health requirements;

[0004] (2) It is difficult to balance the hardness and toughness of the paint film, the hardness is difficult to break through 2H, and the toughness is also difficult to break through 1, which is brittle;

[0005] (3) The paint film has poor anti-scratch and collision performance;

[0006] (4) The solvent resistance of the paint film is poor;

[0007] (5) The paint film has a large content of heavy metals and carcinogens, which directly endanger human health;

[0008] (6) Most of the solvents are poisonous and volatilize in the air to pollute the air and damage the living environment of human beings, endangering the health of human beings;

[0009] (7) Spraying construction is difficult (complicated surface treatment, many processes, poor recoatability);

[0012] In short, the current packaging steel drum paint has the problems of small application range, poor anti-scratch and collision performance, toxic and harmful construction efficiency, and not environmentally friendly.