Fireproof paint for steel structure surface

Abstract

The invention discloses fireproof paint for a steel structure surface, which belongs to the technical field of construction materials. The fireproof paint for the steel structure surface is prepared in the following steps: mixing and fermenting coconut shell fibers, sludge of a secondary sedimentation tank, glucose solution and water, then adding aluminum chloride solution, adding sodium hydroxidesolution, adjusting the pH, filtering, drying, carbonizing, and obtaining modified additives; stirring soybean oil, formic acid and hydrogen peroxide at a constant temperature to facilitate the reaction, centrifuging, layering, collecting supernatant, adding distilled water and sodium chloride aqueous solution into the supernatant, centrifuging, separating, removing the lower layer water, and obtaining modified soybean oil; and stirring and mixing the acrylate resin, melamine phosphate, modified additives, weak oxidant, dry oil, modified soybean oil, organic acid, tar and linoleic acid, thusobtaining the fireproof paint for the steel structure surface. The fireproof paint for the steel structure surface prepared according to the technical scheme of the invention has the characteristics of excellent fireproof performance and mechanical performance, and has wide prospect in the construction material industry.

Description

technical field [0001] The invention discloses a fireproof coating for the surface of a steel structure, which belongs to the technical field of building materials. Background technique [0002] Steel structure is one of the main building structures. It is widely used in industrial and civil buildings because of its high strength, light weight, simple manufacturing, fast construction speed, and good plasticity and toughness. However, although the steel structure material is a non-combustible material, it is very easy to conduct heat, and it will lose its strength and deform when heated at high temperature. When the heating temperature reaches above 250°C, the strength drops rapidly, and when the heating reaches 600°C, the strength is only 1 / 3, while the general fire scene temperature can be as high as 700°C or above. As a building material, the fire resistance limit of steel is only 15 minutes. Therefore, under the high temperature of fire, the steel structure will soon los...

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is: aiming at the problem that the flame retardant performance and mechanical properties of the