Fireproof coating and preparation method thereof

Abstract

The invention discloses a fireproof coating and a preparation method thereof, and relates to the field of coatings. The fireproof coating provided by the invention comprises the following components in parts by weight: 180-250 parts of an acrylic emulsion, 30-50 parts of potassium silicate, 400-450 parts of a fire retardant, 50-70 parts of chlorinated paraffin, 20-30 parts of diantimony trioxide, 5-10 parts of nano-magnesium hydroxide, 10-30 parts of composite zinc phosphate, 5-10 parts of titanium dioxide, 10-15 parts of mica powder, 2-6 parts of a dispersing agent, 1.5-2.5 parts of a de-foaming agent, 5-15 parts of a film-forming aid, 1-3 parts of a leveling agent, 20-30 parts of a thickening agent, 1 part of an anti-mould and anti-alga agent and 120-200 parts of de-ionized water. The coating belongs to environment-friendly coatings, is long in fireproof time, good in decorative performance, excellent in waterproof performance and free from APEO (alkylphenol ethoxylates) and compounds of metal such as lead or chromium, and cannot cause harm to environment and human health.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a fireproof coating and a preparation method thereof. Background technique [0002] With the enhancement of people's awareness of environmental protection and the improvement of modern science and technology, the application of water-based fireproof coatings is the development trend of the fire protection industry. According to different diluents, fire retardant coatings are divided into two types: water-based and solvent-based. The former uses water as the dispersion medium, is low in cost, non-toxic and environmentally friendly, dries at room temperature, and is flame retardant itself; the latter uses organic solvents such as toluene and xylene for dispersion. Medium, the high VOC content in the drying process will pollute the environment, which is not conducive to the health of construction workers. It is flammable and needs to pay attention to fire prevention. [0003] So...

AI Technical Summary

Problems solved by technology

According to different diluents, fire retardant coatings are divided into two types: water-based and solvent-based. The former uses water as the dispersion medium, is low in cost, non-toxic and environmentally friendly, dries at room temperature, and is flame retardant itself; the latter uses organic solvents such as toluene and xylene for dispersion. Medium, high VOC content in the drying process, pollutes the environment, is not conducive to the health of construction workers, it is flammable itself, and attention should be paid to fire prevention

[0003] So far, my country's water-based fire retardant coatings have gradually replaced solvent-based fire retardant coatings, but there are still many technical difficulties in the development of fire retardant coatings. The main problems to be solved are to improve water resistance, shorten drying time, prolong fire resistance time, and improve storage. Stability, increase decoration, etc.

[0004] To sum up, the indoor thin steel structure fire retardant coatings currently on the market have disadvantages such as poor water resistance, poor storage stability, short fire resistance time, long drying time, and poor decoration.

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