The invention relates to a steel structure fireproof coiled material with a function layer and a preparing method of the steel structure fireproof coiled material, and belongs to the field of fireproof materials. The fireproof coiled material consists of a fireproof layer and a function layer, wherein the fireproof layer consists of high
molecular solid resin, expansion type fire retardants, dispersion auxiliary agents and enhancing auxiliary agents, the function layer is manufactured by additionally adding functional
filling materials on the basis of the materials of the fireproof layer, and the two
layers are respectively subjected to mixing,
extrusion pelleting,
casting tabletting, re-compounding
casting and coiling into coiled materials. The steel structure fireproof coiled material can be continuously produced on a
production line, the materials are processed into the coiled materials with the required thickness in one step, the production efficiency is high, the equipment is simple, the production process is safe and environment-friendly,
industrial pollution such as waste water and
waste gas do not exist, the fireproof coiled material can be used for producing sheet materials with different thickness according fireproof design requirements, and fireproof design requirements under different conditions can be met. The coiled material can be fast pasted on the surface of a steel structure in the use process, the fireproof design thickness can be realized through one-step pasting, the multi-time repeated brushing and
coating is not needed, the work efficiency is high, the work procedures are simple, and the construction is environment-friendly and convenient.