Water-based ultrathin steel-structure fireproof paint

Abstract

The invention discloses water-based ultrathin steel-structure fireproof paint and relates to the technical field of fireproof paint. The water-based ultrathin steel-structure fireproof paint is prepared from the following raw materials in parts by weight: 40-50 parts of pure acrylic emulsion, 10-15 parts of vinyl acetate-ethylene copolymer emulsion, 10-15 parts of terpene resin, 8-11 parts of low-density polyethylene, 6-10 parts of alkyd resin, 6-10 parts of mineral powder, 5-8 parts of styrene butadiene rubber, 5-8 parts of ammonium polyphosphate, 4-6 parts of petroleum coke, 3-5 parts of fructus gleditsiae powder, 2-3 parts of palm oil, 2-3 parts of urea, 1-2 parts of monopotassium phosphate and 100-150 parts of water. With a high curing speed, the fireproof paint disclosed by the invention can be cured into a film within 10min at 105 DEG C; the spraying thickness is only 5-6mm; the paint film has excellent flame retardance, wear resistance, corrosion resistance, waterproof property and the like while the safety in use is high; and moreover, harmful gases are not volatilized in curing so as to protect the steel structure and guarantee the use environment of the paint.

Description

Technical field: [0001] The invention relates to the technical field of fireproof paint, in particular to a water-based ultra-thin fireproof paint for steel structures. Background technique: [0002] Because steel structure has a series of advantages such as high strength, good toughness, convenient manufacture, fast construction speed and short construction period, it has been more and more widely used in modern construction industry. However, there is a disadvantage of poor fire resistance. In order to solve this problem, spraying fireproof paint on steel structures is the most economical and reasonable measure in fire prevention measures for steel structures. The coating of ultra-thin fireproof coating expands when exposed to fire, and can form a carbonized layer ten times or even dozens of times, and the carbonized layer is dense and firm, and the fire resistance limit is 0.5-3h. At present, the amount of flame retardants used in commercially available ultra-thin steel ...

AI Technical Summary

Problems solved by technology

At present, the amount of flame retardants in commercially available ultra-thin steel structure fire retardant paints is relatively large, and the price of flame retardants is relatively expensive, which increases the cost.

In addition, some steel structure fire retardant paints will volatilize harmful substances when the paint film is cured, polluting the environment and endangering the working environment of workers.