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Preparation method of thermal-insulation material for building exterior walls

A technology for thermal insulation materials and building exterior walls, applied in the field of thermal insulation materials, can solve problems such as general thermal insulation effect, limited use, and flammability, and achieve the effects of reducing thermal conductivity, improving sealing performance, and improving thermal insulation performance

Inactive Publication Date: 2021-01-22
HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Building exterior wall insulation materials, as an important measure for building energy conservation and emission reduction, have been paid more and more attention to. The application of building exterior wall insulation materials can reduce the outward diffusion of heat inside the building and save energy consumption in the heating process in winter. Now In the existing technology, organic thermal insulation materials are widely used for thermal insulation. Due to their low price, organic thermal insulation materials are widely used. However, organic thermal insulation materials have a disadvantage, that is, they are flammable. There are relatively many fire accidents caused by thermal insulation materials. During the construction process, construction workers often cause fires due to improper operation.
[0003] Therefore, it is necessary to use thermal insulation materials with flame-retardant properties to replace organic thermal insulation materials, which can reduce the occurrence of accidents to a certain extent. In the prior art, inorganic thermal insulation materials have been used, but the inorganic thermal insulation materials in the prior art are due to The insulation effect is average, which limits its use

Method used

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Examples

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Effect test

preparation example Construction

[0036] A method for preparing an insulating material for building exterior walls, comprising the following steps:

[0037] (1) red mud treatment;

[0038] Mix red mud and acid solution, soak and stir for 40-50 minutes, then let stand for 2 hours, filter, dry to constant weight, and obtain acid-treated red mud;

[0039] Mix the acid-treated red mud and fly ash evenly, then place them in an electric resistance furnace for calcination treatment, and then naturally cool to room temperature to obtain a mixed calcined material;

[0040] adding the mixed calcined material to a ball mill, adding a grinding aid, performing ball milling treatment for 1 hour, and then drying to obtain ball milled red mud;

[0041] (2) Preparation of sodium silicate solution:

[0042] Add sodium silicate to clear water, stir evenly to obtain sodium silicate solution;

[0043] Described sodium silicate solution mass fraction is 25-30%:

[0044] (3) Mixture:

[0045] Add ball-milled red mud, zeolite po...

Embodiment 1

[0061] A method for preparing an insulating material for building exterior walls, comprising the following steps:

[0062] (1) red mud treatment;

[0063] Mix the red mud and the acid solution, soak and stir for 40 minutes, then let it stand for 2 hours, filter, and dry to constant weight to obtain acid-treated red mud; mix the acid-treated red mud and fly ash evenly, and then place Carry out calcination treatment in a resistance furnace, then cool naturally to room temperature to obtain a mixed calcined material; add the mixed calcined material to a ball mill, add grinding aids, perform ball milling treatment for 1 hour, and then dry to obtain ball milled red mud; The acid solution is a sulfuric acid solution; the mass fraction of the sulfuric acid solution is 1.2%; the mixing mass ratio of the red mud to the sulfuric acid solution is 1:1. The mixing mass ratio of acid-treated red mud to fly ash is 15:1. The calcination temperature in the resistance furnace is 550°C. The g...

Embodiment 2

[0072] A method for preparing an insulating material for building exterior walls, comprising the following steps:

[0073] (1) red mud treatment;

[0074] Mix the red mud and the acid solution, soak and stir for 50 minutes, then let it stand for 2 hours, filter, and dry to constant weight to obtain acid-treated red mud; mix the acid-treated red mud and fly ash evenly, and then place Carry out calcination treatment in a resistance furnace, then cool naturally to room temperature to obtain a mixed calcined material; add the mixed calcined material to a ball mill, add grinding aids, perform ball milling treatment for 1 hour, and then dry to obtain ball milled red mud; The acid solution is a sulfuric acid solution; the mass fraction of the sulfuric acid solution is 1.2%; the mixing mass ratio of the red mud to the sulfuric acid solution is 1:1. The mixing mass ratio of acid-treated red mud to fly ash is 15:2. The calcination temperature in the resistance furnace is 580°C. The g...

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Abstract

The invention discloses a preparation method of a thermal insulation material for a building external wall. The preparation method comprises the following steps: (1) red mud treatment; (2) preparing asodium silicate solution; (3) mixing materials; (4) foaming treatment. The thermal insulation material for the building external wall prepared by the method has a relatively low thermal conductivitycoefficient, so that the thermal conductivity coefficient of the thermal insulation material can be remarkably reduced by the method, and the thermal insulation performance of the thermal insulation material can be better improved by greatly reducing the thermal conductivity coefficient.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials, in particular to a method for preparing thermal insulation materials for building exterior walls. Background technique [0002] Building exterior wall insulation materials, as an important measure for building energy conservation and emission reduction, have been paid more and more attention to. The application of building exterior wall insulation materials can reduce the outward diffusion of heat inside the building, and save energy consumption in the heating process in winter. Now In the existing technology, organic thermal insulation materials are widely used for thermal insulation. Due to their low price, organic thermal insulation materials are widely used. However, organic thermal insulation materials have a disadvantage, that is, they are flammable. There are relatively many fire accidents caused by thermal insulation materials. During the construction process, constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B20/04C04B20/02
CPCC04B20/023C04B20/026C04B20/04C04B28/26C04B2201/32C04B2201/50C04B14/047C04B18/0409C04B22/10C04B24/32C04B18/08C04B38/02C04B38/0074
Inventor 艾明生
Owner HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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