Water-based acrylic amino baking varnish as well as preparation method and application process thereof

Abstract

The invention discloses water-based acrylic amino baking varnish in the field of coatings as well as a preparation method and an application process of the water-based acrylic amino baking varnish. The water-based acrylic amino baking varnish is prepared from the following components in parts by weight: 30-40 parts of epoxy modified acrylic resin, 5-10 parts of amino resin, 2-6 parts of flame retardant microcapsules, 2-3 parts of an antistatic agent, 2-5 parts of a nano silver antibacterial agent, 3-5 parts of diethylene glycol monobutyl ether, 3-6 parts of propylene glycol monoethyl ether, 1.2-1.5 parts of a dispersant, 2-3 parts of an adhesion promoter, 0.2 part of a leveling agent, 20-40 parts of titanium dioxide, 0.4 part of a defoaming agent, 2-3 parts of a neutralizing agent and 15-25 parts of distilled water; a core material of the flame retardant microcapsules is prepared from the following components in parts by weight: 2-6 parts of an organic phosphorus-nitrogen coordinated flame retardant, 0.2-0.5 parts of expanded graphite and 0.1-0.5 parts of a light stabilizer. Long-term flame retardance is realized through slow release performance of the flame retardant microcapsules, and flame retardant effect is improved by the synergistic effect of the organic phosphorus-nitrogen coordinated flame retardant and expanded graphite.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a water-based acrylic amino baking varnish, a preparation method and an application process thereof. Background technique [0002] Baking varnish is a coating that is baked and dried at a certain temperature to form a film. At present, solvent-based coatings are mainly used in the market. Solvent-based coatings use organic solvents as diluents. A large amount of organic solvents volatilize into the air during use, which not only affects the performance of the coating film , and cause serious air pollution, so water-based paints have appeared in the prior art. Water-based paints use water as a solvent to eliminate the toxicity and irritation in solvent-based paints, and are quickly applied to bamboo floors, furniture, glass, plastics, Metal and other fields, become a new type of environmentally friendly materials. [0003] At present, the water-based baking paint used on metal...

AI Technical Summary

Problems solved by technology

However, ordinary water-based baking varnishes do not have a flame-retardant effect and cannot avoid the damage caused by fire. In order to solve this problem, an invention is disclosed in the prior art. Raw materials of the following weight components: 40-45 parts of polyurethane resin, 15-20 parts of water-based baking varnish resin, 14-18 parts of silicone crosslinking agent, 16-22 parts of silicon dioxide, 12-16 parts of silicon hydroxide, 10- 14 parts of magnesium hydroxide, 6-8 parts of iron oxide, 5-8 parts of barium sulfate, 5-7 parts of magnesium silicate, 3-4 parts of lubricant, 4-6 parts of antioxidant, 2-4 parts of compatibilizer , 2-4 parts of silicone defoamer and 1-2 parts of silicone leveling agent

[0004] Although inorganic flame retardants are added in the prior art, and flame retardant insulation is achieved by using a combination of silicon dioxide, silicon hydroxide, magnesium hydroxide, iron oxide, barium sulfate, and magnesium silicate in combination, however, due to the inorganic flame retardant The flame retardant performance is low, and a high amount of addition is required. At the same time, it is not easy to disperse in the resin, and the affinity is not good. Adding it to the baking varnish will reduce the mechanical properties of the baking varnish.