Fire-retardant paint with steel structure

Abstract

The invention relates to fire-retardant paint with a steel structure, which is prepared from the following raw materials proportioning by weight: 45 to 60 of composite substrate resin, 6 to 8 of melamine, 6 to 8 of pentaerythritol, 16 to 20 of ammonium polyphosphate, 4 to 10 of expansible graphite, 2 to 5 of nano magnesium hydroxide, 1 to 3 of zinc phosphate, 1 to 3 of zinc borate, 2 to 5 of aluminum hydroxide, 3 to 5 of aluminum polyphosphate, 6 to 9 of titanium dioxide, 0.5 to 0.8 of flatting agent and 15 to 20 of acetone. The paint has excellent capabilities of fire prevention and corrosion prevention.

Description

technical field [0001] The invention relates to a steel structure fireproof coating, which belongs to the field of steel structure coating preparation. Background technique [0002] Steel is a non-combustible building material, which has the characteristics of earthquake resistance, bending resistance and so on. In practical applications, steel can not only increase the load capacity of buildings relatively, but also meet the needs of architectural design aesthetics; it also avoids the defects of concrete and other building materials that cannot be bent and stretched. Therefore, steel is favored by the construction industry. Single-story, multi-story, skyscrapers, factories, warehouses, waiting rooms, waiting halls, etc. are all commonly used in steel. However, as a building material, steel has some unavoidable defects in fire prevention. Its mechanical properties, such as yield point, tensile strength and modulus of elasticity, will drop sharply due to the increase of temp...

AI Technical Summary

Problems solved by technology

[0009] 1. The use of a relatively single base resin, or the need to modify the resin, may help in terms of fire resistance, but it will cause an increase in production costs and an increase in preparation time. The combination of two resins can improve the fire performance of coatings

[0010] 2. The coating simply forms an outer cladding on the surface of the steel structure, which simply isolates oxygen, and the anti-corrosion ability of the steel is fragile

[0011] 3. When using expanded graphite or nano-magnesium hydroxide alone, there is no awareness or clear indication of the synergistic effect of the two, so the optimal use ratio of the two functions has not been determined.

[0012] 4. Unaware of the impact of the particle size of the particulate matter in the coating raw material on the fire performance of the final coating product