Fireproof door core plate and preparation method thereof

Abstract

The invention provides a fireproof door core plate and a preparation method thereof. The fireproof door core plate is prepared from the following components in parts by weight: 30-56 parts of gypsum, 20-50 parts of magnesium oxide, 20-40 parts of magnesium chloride, 20-40 parts of magnesium sulfide, 1-5 parts of ultrafine carbon fibers, 2-6 parts of ultrafine silica fume, 3-8 parts of short-staples, 1-2 parts of industrial boric acid, 1-2 parts of ferrous sulfate, 3-5 parts of a foaming agent, 3-8 parts of organic silicon waterproof powder, 2-6 parts of humic acid and 35-45 parts of water. The fireproof door core plate is environment-friendly, light in weight, high in strength and good in fireproof performance, can fulfill the requirement for fireproof flammability and safety of products, and can be used for remarkably improving the compression resistance, fracture resistance, seepage resistance, impact resistance and abrasion resistance. The fireproof door core plate is wide in raw material source, and is low in production cost and simple in processing process.

Description

technical field [0001] The invention relates to the technical field of fire doors, in particular to a fire door core board and a preparation method thereof. Background technique [0002] At present, with the development of the national real estate industry, the demand for fireproof building materials is getting wider and higher, and the requirements are getting higher and higher. Fire doors have multiple functions and practicability such as closure, fire resistance, partition, safety, heat preservation, and sound insulation. The fire door implements a license system. The production of fire doors must obtain the production license issued by the State Fire Protection Administration, and the fire door core board is an essential core material for fire doors. It needs to be inspected by relevant departments in terms of combustion performance and safety performance. Higher conditions are put forward for the production of fire door core panels. [0003] The filling material of th...

AI Technical Summary

Problems solved by technology

Aluminum silicate wool board, rock wool, slag wool or glass wool fireproof door panels. Although these materials are light in weight and good in heat insulation, they consume a lot of energy in the production process. Pollution, it is difficult to meet environmental protection requirements, and there are problems such as poor integrity of the fire door core board, short fire resistance limit time, poor mechanical properties, easy deformation, high comprehensive cost, and inconvenient use; Well, the board is formed with strong alkaline adhesives such as water glass, which is corrosive, has poor strength and toughness, and is easy to be damaged during production and use; the vermiculite fire door core board is made of organic or inorganic adhesives Forming, there are problems such as complex production process, limited source of raw materials, high dry density, and high overall cost; although magnesium oxychloride cement fireproof door core board has the characteristics of light weight, high strength, and low cost, its volume is not large. The key technical problems such as stability, moisture absorption, halogen and frost return, warping and deformation, and short fire resistance limit time have not been effectively solved; the surface of the fire door core board made of Portland cement or sulphoaluminate cement foaming is easy to powder Chemical, low strength and poor stability in the later period seriously affect the quality of fire doors