Steel structure fireproof coil and preparation method thereof

Abstract

The present invention relates to a steel structure fireproof coiled material and a manufacturing method therefor and relates to the field of fireproof materials. The steel structure fireproof coiled material consists of a macromolecular solid resin, an intumescent flame retardant, a dispersing additive, and an enhancing additive and is manufactured via agitation, extrusion, granulation, calendaring into sheets, and coiling into the coiled material. The intumescent flame retardant consists of a phosphate as an acid source, an amine as a gas source, and a polyol as a carbon source. The steel structure fireproof coiled material of the present invention can be continuously produced on a production line, where the coiled material is processed into a required thickness in a single run, production efficiency is high, and equipment is simplified. The production process is safe, environmentally friendly, and free of industrial pollutions such as wastewater and exhaust gas. The fireproof coiled material can be manufactured into sheet materials of different thicknesses on the basis of fireproof design requirements, thus satisfying fireproof design requirements for different conditions. Rapid affixation onto the surface of a steel structure is allowed when used, the thickness as required by a fireproof design is achieved in a single affixation, and the need for repeated brushing is obviated, thus allowing for high work efficiency, a simple process, environmentally friendly construction, and convenience.

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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