Preparation method of inorganic fireproof door core material

A fireproof door core, inorganic technology, applied in the field of fireproof materials, can solve the problems of poor practical use performance, poor environmental protection of fireproof door core materials, etc., and achieve the effects of good fire resistance, high elastic modulus and good compatibility

Active Publication Date: 2016-04-13
JIAHUA SPECIAL CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of poor environmental protection and poor practical performance of fireproof door core materials in the prior art, and proposes a new preparation method of inorganic fireproof door core materials

Method used

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  • Preparation method of inorganic fireproof door core material

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Experimental program
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Effect test

Embodiment 1

[0026] A preparation method of an inorganic fireproof door core material, comprising the following steps:

[0027] (1) Preparation of cement paste

[0028] Mix 1 part of sulphoaluminate cement, 0.002 part of water reducer, 0.002 part of basalt fiber, and 0.3 part of water and set aside;

[0029] (2) Foam preparation

[0030] After diluting the blowing agent, it is made into a foam;

[0031] (3) Mix the foam prepared in step (2) with the cement slurry prepared in step (1) at a ratio of 2mL / g, mix well and pour into the mold, demould after standard curing for 24 hours, and then carry out natural curing or standard curing 7 days will do.

Embodiment 2

[0033] A preparation method of an inorganic fireproof door core material, comprising the following steps:

[0034] (1) Preparation of cement paste

[0035] Mix 1 part of sulphoaluminate cement, 0.01 part of water reducer, 0.01 part of basalt fiber, and 0.4 part of water and set aside;

[0036] (2) Foam preparation

[0037] After diluting the blowing agent, it is made into a foam;

[0038] (3) Mix the foam prepared in step (2) with the cement slurry prepared in step (1) at a ratio of 6mL / g, mix well and pour into the mold, demould after standard curing for 24 hours, and then carry out natural curing or standard curing 28 days is enough.

[0039] In the step (1) of this embodiment, the water-reducing agent is a polycarboxylate water-reducer, its pH is 6.5-8.0, and the water-reducing rate is 20-40%. The water-reducing efficiency of the polycarboxylate water-reducer is high. The compatibility of aluminate cement is good; the length of basalt fiber in this implementation is 3mm...

Embodiment 3

[0041] A preparation method of an inorganic fireproof door core material, comprising the following steps:

[0042] (1) Preparation of cement paste

[0043] Mix 1 part of sulphoaluminate cement, 0.008 part of water reducer, 0.005 part of basalt fiber, and 0.32 part of water and set aside;

[0044] (2) Foam preparation

[0045] After diluting the foaming agent, use foaming and diluent to make a foam, and the foam is paste after making;

[0046] (3) Mix the foam prepared in step (2) with the cement slurry prepared in step (1) at a ratio of 4mL / g, mix well and pour into the mold, demould after standard curing for 24 hours, and then carry out natural curing or standard curing 10 days will do.

[0047] In the step (1) of this embodiment, the water-reducing agent is a polycarboxylate water-reducer, its pH is 6.5-8.0, and the water-reducing rate is 20-40%. The water-reducing efficiency of the polycarboxylate water-reducer is high. Aluminate cement has good compatibility; the basal...

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Abstract

The invention discloses a preparation method of an inorganic fireproof door core material, and belongs to the technical field of fireproof materials. The preparation method of the inorganic fireproof door core material is characterized by comprising the following steps that 1, cement slurry is prepared, wherein 1 part of sulfate aluminum cement, 0.002-0.01 part of water reducing agent, 0.002-0.01 part of basalt fiber and 0.3-0.4 part of water are mixed to be uniform for use; 2, a foam body is prepared, wherein a foaming agent is diluted, and the foam body is prepared; 3, the foam prepared in the second step and the cement slurry prepared in the first step are mixed according to the proportion of 2-6 mL/g, stirring is conducted to be uniform, the obtained mixture is poured into a mold, standard curing is conducted for 24 h, demolding is conducted, and then natural curing or standard curing is conducted for 7-28 days, and the inorganic fireproof door core material is obtained. When the inorganic fireproof door core material is subjected to a flame, dripping matter does not exist on the surface, the phenomena of curling and melting do not exist, and the inorganic fireproof door core material has the advantages of being good in use property and fireproof property and environmentally friendly.

Description

technical field [0001] The invention relates to a preparation method of an inorganic fireproof door core material, belonging to the technical field of fireproof materials. 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, which has been banned; the other is perlite board, although it has better thermal insulation and fire resistance, its strength is very poor, and some data show that its The damage rate during transportation and installation is as high as 30%, which not only increases the cost of use, but also affects the fireproof, thermal insulation and sound insulation effects of the board due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/06
CPCC04B28/06C04B2103/0068C04B2103/302C04B2111/285C04B14/4631C04B24/24C04B24/14C04B38/02
Inventor 林燕王田堂王毅平陈学东
Owner JIAHUA SPECIAL CEMENT
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