Preparation method for fireproof board

Abstract

The invention relates to a preparation method for a fireproof board. The preparation method comprises the following steps: subjecting cement, phosphoric acid and magnesium sulfate to full stirring, adding a flame retardant into the above-mentioned mixed material, and carrying out uniform stirring so as to obtain a mixed material A; quartering the mixed material A by weight, adding bentonite into a quarter of the mixed material A, and carrying out uniform stirring so as to obtain a mixed material B; adding diatomite, expanded perlite and slag into remained three quarters of the mixed material A, and carrying out uniform stirring so as to obtain a mixed material C; subjecting the mixed material B and the mixed material C to full stirring at 40 to 50 DEG C so as to obtain a fireproof material slurry; injecting the obtained slurry into a mold, then carrying out compaction, carrying out curing at normal temperature and normal pressure for 2 to 3 days, carrying out demolding, then carrying out curing at normal temperature and normal pressure for 7 to 9 days, and carrying out cutting into a required size according to needs. The method provided by the invention is simple; and the obtained fireproof board has the advantages of low density, high hardness, light weight, good fireproof performance, strong processibility, safety, environmental protection and no pollution, and meets the needs of the development of the industry.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing a fireproof board. Background technique [0002] Fire doors are an indispensable safety facility for modern buildings. However, asbestos is used as the fireproof filling material of fire doors. Although it has good fire performance, asbestos and various products are highly carcinogenic. The EU market has banned the use of various types of fire doors. Asbestos products. Although inorganic materials have been developed to replace asbestos in recent years, there are problems such as low strength, heavy weight, and poor processability. Therefore, it is urgent to develop a fireproof board with good fireproof performance, light density, relatively safe and environment-friendly, and high strength and its preparation method. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a fireproof board,...

AI Technical Summary

Problems solved by technology

[0002] Fire doors are an indispensable safety facility for modern buildings. However, asbestos is used as the fireproof filling material of fire doors. Although it has good fire performance, asbestos and various products are highly carcinogenic. The EU market has banned the use of various types of fire doors. asbestos products

Although some people have developed inorganic materials to replace asbestos in recent years, they all have problems such as low strength, heavy weight, and poor processability.