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A kind of silicate fire-proof and thermal insulation material and preparation method thereof

A fireproof heat preservation, silicate technology, applied in the field of fireproof materials, can solve the problems of poor heat preservation effect, high compressive strength, low thermal conductivity, etc., and achieve the effect of small bulk density, high compressive strength and low thermal conductivity

Active Publication Date: 2017-08-04
SHENZHEN SELEN SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of large volume, poor heat preservation effect and low compressive strength of inorganic heat preservation materials in the prior art, the present invention provides a silicate fireproof heat preservation material with small volume density, low thermal conductivity and high compressive strength

Method used

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  • A kind of silicate fire-proof and thermal insulation material and preparation method thereof
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  • A kind of silicate fire-proof and thermal insulation material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1～3

[0032] According to the components and contents in Table 2, the following preparation methods were used to prepare the silicate fireproof and thermal insulation materials of the present examples 1-3:

[0033] (1) Sodium silicate and azodicarbonamide are mixed, fully stirred, sealed and stored, and placed at room temperature for 24 hours;

[0034] (2) Add hollow glass microspheres, colloidal silicon dioxide, sodium fluorosilicate, polyether glycol, and stir evenly;

[0035] (3) add diphenylmethane diisocyanate, stir;

[0036] (4) Pour the above-mentioned slurry into the mold, bake at a constant temperature of 150°C for 1.5h, then raise the temperature to 190°C, and bake at this temperature for 3h, then raise the temperature to 350°C, and bake at this temperature for 3h , After foaming and demoulding, the silicate fireproof and thermal insulation material can be obtained.

[0037] Table 2

[0038]

Embodiment 4～6

[0040] According to the components and contents in Table 3, the following preparation methods were used to prepare the silicate fireproof and thermal insulation materials of the present embodiment 4-6:

[0041] (1) Mix potassium silicate, azobisisobutyronitrile, and bis-azoaminobenzene, stir well, seal and store, and place at room temperature for 72 hours;

[0042] (2) Add hollow glass microspheres, colloidal silicon dioxide, sodium fluorosilicate, polyether glycol, and stir evenly;

[0043] (3) Add diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanate, stir;

[0044] (4) Pour the slurry obtained above into a mold, bake at a constant temperature of 160°C for 1 hour, then raise the temperature to 210°C, and bake at this temperature for 2 hours, then raise the temperature to 400°C, and bake at this temperature for 2 hours, After foam molding, the mold is demoulded, and the silicate fire-proof and heat-insulating material is obtained.

[0045] table 3

[0046] ...

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Abstract

The invention provides a silicate fireproof and thermal insulation material composition, comprising 100 parts by weight of water glass, 30-40 parts by weight of hollow glass microspheres, 0.5-1 part by weight of a chemical foaming agent, and 0.5-2 parts by weight of an adhesive , 0.5-2 parts by weight of curing agent, 0.5-1 part by weight of polyether polyol, and 0.5-1 part by weight of polyisocyanate. The fireproof and thermal insulation material has the advantages of small bulk density, low thermal conductivity and high compressive strength. The invention also provides a preparation method of the silicate fireproof and thermal insulation material. The preparation method has the advantages of simple process, low energy consumption and short time.

Description

technical field [0001] The invention relates to a fireproof material, in particular to a silicate fireproof and thermal insulation material with small bulk density, low thermal conductivity and high compressive strength and a preparation method thereof. Background technique [0002] At present, there are two main types of materials used for building exterior wall insulation in my country: (1) Organic insulation materials: polystyrene foam materials, foam rubber materials, polyurethane foam materials, etc.; (2) Inorganic insulation materials: rock wool, slag wool , glass wool, cement foam materials, etc. Among them, although organic insulation materials have good thermal insulation properties and small bulk density, they have poor heat resistance and are easy to burn, and they release a lot of heat and produce a lot of toxic fumes during combustion, which will not only accelerate the spread of the epidemic, but also easily cause casualties. With the emphasis on fire protectio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/26
Inventor 侯毅管映亭胡树赵晨
Owner SHENZHEN SELEN SCI & TECH CO LTD
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