Preparation method of fireproof plate

Abstract

The invention discloses a preparation method of a fireproof plate. The preparation method comprises the following steps: firstly, grinding materials comprising 5%-15% of white clay, 5%-15% of organicbentonite, 1%-10% of mica powder, 8%-30% of fly ash, 1%-10% of lignocellulose, 20%-50% of magnesium oxide powder and 10%-30% of talcum powder to a certain degree to form a mixed composition A; addinga solution formed by adding water into 60%-95% of magnesium chloride into 5%-20% of glacial acetic acid and 5%-20% of trisodium phosphate to form a mixed composition B; blending the mixed compositionA and the mixed composition B according to a ratio of 1:2 to 2:1, and stirring the mixture at a high speed to obtain slurry; adding 0.2%-5% of a waterproof agent and 0.2%-5% of a modifier into the slurry; performing secondary stirring, injecting the mixture into a mold, and performing constant-temperature curing in the mold for 0.5 h-10h to obtain the finished fireproof plate. The preparation method has the beneficial effects that the fireproof plate prepared by adopting the preparation method is good in fireproof performance, long in fireproof time, insoluble in water, good in waterproof effect, high in strength, not easy to break, non-flammable, free of smoke toxicity and free of dust.

Description

technical field [0001] The invention relates to the technical field of fireproof materials, in particular to a preparation method of fireproof boards. Background technique [0002] At present, the partition materials used in the fields of clean room and public decoration have single function, complex structure, cumbersome construction, unenvironmental protection, long construction period, and surface treatment will bring great air pollution. The main partition materials on the market at this stage are as follows: [0003] 1. Color steel foam board: Its structure is single, and it is formed by the foam profile surface pasted with color steel sheet. It is not fireproof, flammable, and has strong smoke toxicity. [0004] 2. Colored steel rock wool board: It is formed by color steel plate pasted with rock wool, which is easy to absorb water and dissolve and lose its strength. Rock wool dust is extremely harmful, and it is easy to cause pneumoconiosis in users, and the environme...

AI Technical Summary

Problems solved by technology

[0004] 2. Colored steel rock wool board: It is formed by color steel plate pasted with rock wool, which is easy to absorb water and dissolve and lose its strength. Rock wool dust is extremely harmful, and it is easy to cause pneumoconiosis in users, and the environmental pollution is serious. Rock wool is fired and drawn with basalt It is a high energy consumption product that is not environmentally friendly

[0005] 3. Color steel glass magnesium board: It is made of glass magnesium board after cutting into strips and then glued to press the veneer. Its production and processing are dusty, smelly, and the fire protection level is poor. The normal fire protection time does not exceed 20 minutes, which is easy to cause serious fire. Hidden danger

[0006] 4. Paper-faced gypsum board: its material is not waterproof, the material strength is poor, and light steel keel is required for processing. The sound insulation effect is poor when rock wool is not filled in the middle, and the surface needs to be painted with dust. The process is complicated and not environmentally friendly

[0007] 5. Calcium silicate board: The board has high strength, is not easy to construct, and is easy to break. The construction needs to use light steel keel as the skeleton, and the surface needs to be painted with dust. The process is complicated and not environmentally friendly