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Fireproof core material and manufacturing method

A manufacturing method and technology for fireproof cores, which are applied in the field of fireproof materials, can solve the problems of easy generation of flames, and the calorific value of fireproof core materials cannot meet the requirements of A2-level fireproof standards, achieve good flame retardancy and smoke suppression, reduce transportation and subsequent processing. cost, cost reduction effect

Pending Publication Date: 2022-01-25
JIANGSU ALUMEIGE NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the organic matter in the adhesive itself has a relatively high calorific value per unit weight, and it is easy to generate flames after being heated. Therefore, the calorific value of the existing fireproof core materials using organic matter cannot meet the requirements of the A2 fire protection standard.

Method used

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  • Fireproof core material and manufacturing method
  • Fireproof core material and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In the first step, in parts by weight, take 35 parts of the aqueous emulsion obtained by mixing styrene-acrylic and vinegar-acrylic acid, and 200 parts of inorganic flame-retardant powders composed of calcium carbonate powder particles with a maximum particle size of no more than 1000 μm. It is mixed and stirred to make a slurry. The calcium carbonate powder particles used in the slurry are heavy calcium carbonate powder or calcite powder, and the D50 particle size range is guaranteed by adjusting the D50 particle size ratio of the powder particles. The powder particles between 5 μm and 50 μm account for 90% of the total mass of the inorganic flame retardant powder, and the D50 particle size range of the remaining powder particles can be distributed between 100-400 μm;

[0028] In the second step, the slurry obtained in the first step is put into extrusion molding equipment to obtain a sheet;

[0029] In the third step, the sheets obtained in the second step are placed ...

Embodiment 2

[0043] The first step, in parts by weight, takes 40 parts of vinyl acetate-ethylene copolymer aqueous emulsion (VAE emulsion), and 200 parts of inorganic flame-retardant powders composed of calcium carbonate powder particles with a maximum particle size of no more than 1000 μm, in a vacuum It is mixed and stirred under certain conditions to make a slurry. The calcium carbonate powder particles used in the slurry are heavy calcium carbonate powder or calcite powder, and the D50 particle size ratio of the powder particles is adjusted to ensure that the D50 particle size The powder particles within the range of 5 μm to 50 μm account for 20% of the total mass of the inorganic flame retardant powder, and the D50 particle size range of the remaining powder particles can be distributed between 100-400 μm;

[0044] In the second step, the slurry obtained in the first step is put into extrusion molding equipment to obtain a sheet;

[0045] In the third step, the sheets obtained in the ...

Embodiment 3

[0061] The first step, in parts by weight, takes 45 parts of acrylic acid aqueous emulsion, and 100 parts of fine-grained calcium carbonate powder with a D50 particle size range of 5-50 μm, and 10 parts of D50 particle size range between 5-400 μm 200 parts of inorganic flame retardants composed of a mixture of aluminum hydroxide powder, magnesium hydroxide powder, and 90 parts of coarse-grained calcium carbonate powder with a D50 particle size range of 100-400 μm, were mixed under vacuum conditions Mix and stir to make a slurry. The powder particles of aluminum hydroxide and magnesium hydroxide used in the slurry can be selected at the same time: coarse aluminum hydroxide powder, which is made by Bayer process, and its D50 particle size range Between 100 μm and 400 μm; fine-grained aluminum hydroxide powder, which is made by sintering process, and its D50 particle size range is between 5 μm and 50 μm; fine-grained magnesium hydroxide powder, which is made by ore method, its D50...

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Abstract

The invention provides a fireproof core material and a manufacturing method. According to the fireproof core material, water-based emulsion is mixed with powder such as calcium carbonate, a flame retardant and the like, the use amount of the emulsion is reduced by reasonably matching the proportion of thick particles and fine particles of inorganic powder, the strength is ensured while the heat value of the material reaches the A2 standard requirement, and the fireproof effect is achieved; due to the fact that the flame-retardant components are all selected from inorganic powder particles, the flame-retardant components can synchronously extend along with the emulsion along with heating softening of the water-based emulsion condensate, so that corresponding toughness is provided, and bending and coiling are achieved; and the fireproof core material can meet the A2-level fireproof requirement, and can be continuously bent and rolled to be packaged and transported, so that the transportation and subsequent processing cost is effectively reduced.

Description

technical field [0001] The present application relates to the technical field of fireproof materials, in particular to a fireproof core material and a manufacturing method. Background technique [0002] Calcium carbonate, glass fiber, polypropylene staple fiber, flame retardant and other components are mostly used in the existing fireproof core materials for manufacture. However, due to the limitations of the material's own characteristics and processing technology, the toughness and strength of the existing fireproof core material products are relatively poor. In addition, the existing fireproof core material has low density and high water absorption rate, and the existing fireproof core material cannot be bent and harvested into rolls for packaging and transportation, so its transportation cost and processing cost are high. [0003] Existing fireproof core materials need to use a large amount of adhesive mixed with flame retardant components to ensure that the strength of...

Claims

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Application Information

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IPC IPC(8): C04B26/04C04B26/06C04B14/28B29B7/00B29B7/84C04B111/28C04B20/00
CPCC04B26/04C04B26/06C04B14/28B29B7/00B29B7/84C04B2111/28C04B2201/50C04B2103/63C04B14/303C04B14/36C04B20/0076C04B20/008
Inventor 陈建明石维军
Owner JIANGSU ALUMEIGE NEW MATERIALS
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