Fireproof door core filling material and preparation method thereof

Abstract

The invention provides a fireproof door core filling material and a preparation method thereof, and relates to the field of fireproof materials. The fireproof door core filling material comprises the following raw materials in parts by weight: 32-40 parts of perlite, 14-18 parts of bentonite, and 10-12 parts of magnesium sulfate 16-20 parts of magnesium oxide, 10-12 parts of calcium hydroxide, 4-8 parts of boron oxide, 5-7 parts of lignin, 5-11 parts of ceramic fiber, 17-21 parts of glass wool, 13-19 parts of zirconia 8-14 parts of airgel, 6-18 parts of nano-silicon carbide, 1-3 parts of inorganic binder and 7-11 parts of water; the preparation method comprises the following steps: (1) weighing raw materials; (2) preparing mixed solution; (3) stirring. The invention solves the problem that the existing fire door core filling material is still insufficient when applied to fire doors with high requirements on compressive strength, tensile strength, thermal insulation, bulk density and fire protection.

Description

technical field [0001] The invention belongs to the field of fireproof materials, and in particular relates to a fireproof door core filling material and a preparation method thereof. Background technique [0002] In the prior art, as the core material for steel fire doors, one is aluminum silicate cotton board, which requires high-temperature sintering to make cotton during its production process, which has the defects of high energy consumption and environmental pollution, especially its board is made of additives It is not only not waterproof, but its adhesive produces a lot of harmful smoke in case of fire, and its use has been banned. The other is perlite board. Although it has better thermal insulation and fire protection performance, its strength is very poor. According to some data, the damage rate in the process of transportation and installation is as high as 30%, which not only increases the cost of use, but also affects the quality of the board due to its fragili...

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Problems solved by technology

[0004] In order to solve the problem that the existing fire door core filling material is still insufficient when applied to fire doors with high requirements for compressive strength, tensile strength, thermal insulation, bulk density and fire protection, the purpose of the present invention is to provide a fireproof Door core material and its preparation method, the prepared fire door core material has the advantages of high compressive strength, high tensile strength, light weight, good thermal insulation effect and good fire prevention effect

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