Steel structure fireproof coiled material and preparation method thereof

Abstract

The invention relates to a steel structure fireproof coiled material and a preparation method thereof and belongs to the field of fireproof materials. The steel structure fireproof coiled material is composed of macromolecule solid resin, an inrumescent flame retardant, a dispersing auxiliary and a reinforcing auxiliary and is prepared by mixing, extrusion pelletizing, flattening into pieces and rolling into a coiled material, wherein the inrumescent flame retardant is formed by taking phosphate as an acid source, an amine compound as a gas source and polyol as a carbon source. The steel structure fireproof coiled material can be continuously produced on a production line, a coiled material with the required thickness is processed once, production efficiency is high, equipment is simple, a production process is safe and environmental friendly, and industrial pollution such as waste water and waste gas is not produced; the steel structure fireproof coiled material can be used for producing sheets with different thicknesses according to the fire protection design requirement, and different fire protection design requirements can be met; The steel structure fireproof coiled material can be rapidly pasted on the surface of a steel structure when being used, the fire protection design thickness can be realized in once pasting, repeated brushing is not needed, working efficiency is high, working procedures are simple, and construction is environmental friendly and convenient.

Description

technical field [0001] The invention belongs to the technical field of fireproof materials, and in particular relates to a steel structure fireproof coil and a preparation method thereof. Background technique [0002] With the rapid development of my country's economic construction, steel structure buildings have become increasingly It is widely used in various large-space industrial plants and civil buildings. Although the steel structure itself is a non-combustible material, its yield stress and tensile strength decrease sharply to 50% to 60% of the original value when it is above 600°C, so its fire resistance limit is only 15 minutes, which cannot meet the design fire resistance limit requirements. In order to overcome the deficiencies in fire protection of steel structure materials in practical applications, fire protection treatment must be carried out, the purpose of which is to increase the fire resistance of steel structures to at least the limit range specified in t...

AI Technical Summary

Problems solved by technology

Solvent-based coatings have good hardness, gloss, water resistance, and chemical corrosion resistance, but they use organic solvents as dispersants, which will volatilize in large quantities during production and construction, pollute the environment, cause harm to the human body, and waste energy. The safety hazard is great; the paint film has poor air permeability and hydrophobicity. If it is applied on a wet base, it is prone to peeling and peeling off; as time goes on, the coating becomes harder and more fragile, such as Cracks occur when the wall expands with heat and contracts with cold

Water-based coatings use water as a solvent, which is environmentally friendly, safe, and convenient to use. The coating has relatively good air permeability, and the water vapor inside the base layer can diffuse outward, but there are also disadvantages such as poor water resistance and poor hardness of the coating.

The most important thing is that both water-based and solvent-based fireproof coatings for steel structures have long construction periods, repeated painting, complicated procedures, inconvenient on-site construction, waste liquid, waste gas and other pollution during production, and difficult brushing thickness. Mastering, resulting in uneven coating thickness, poor decoration, serious construction loss and other shortcomings

[0004] Fireproof coiled materials in the existing market are not suitable for wrapping steel structures, and cannot meet the needs of steel structure fireproof performance

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