Novel fireproof door filling-core material and preparation method thereof

Abstract

The invention provides a novel fireproof door filling-core material and a preparation method thereof, and relates to the field of fireproof materials. The novel fireproof door filling-core material comprises the following materials in parts by weight: 31-39 parts of perlite, 14-18 parts of bentonite, 10-12 parts of magnesium sulfate, 16-20 parts of magnesium oxide, 10-12 parts of calcium hydroxide, 4-6 parts of boron oxide, 5-7 parts of lignin, 5-9 parts of glass fiber, 13-23 parts of polyester fibers, 7-15 parts of glass wool, 17-23 parts of foamed rubber, 11-19 parts of waste polystyrene board, 15-23 parts of diatomite, 0.7-1.3 parts of inorganic binder, 0.3-0.5 part of air entraining agent, 0.2-0.6 part of foaming agent, 0.3-0.7 part of water reducing agent and 3-7 parts of water. The preparation method comprises the following steps of 1, weighing materials; 2, crushing; 3, preparing mixed liquid; and 4, stirring. According to the method provided by the invention, the problem that existing fireproof door filling-core materials still have insufficiencies when being applied to the fireproof doors with high requirements on compressive strength, tensile strength, thermal insulation, appearance density, fire protection, environment protection and energy conservation is solved.

Description

technical field [0001] The invention belongs to the field of fireproof materials, and in particular relates to a novel 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 f...

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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, fire prevention, environmental protection and energy saving, the purpose of the present invention is to provide A novel fire door core filling material and its preparation method. The prepared novel fire door core filling material has the advantages of high compressive strength, high tensile strength, light weight, good thermal insulation effect, good fire prevention effect, environmental protection and energy saving

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