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Preparation method of high-performance heat-insulating composite plate

A thermal insulation composite board, high-performance technology, applied in the field of building materials, to achieve the effect of improving mechanical properties and thermal insulation properties, high porosity, and enhanced structural strength

Inactive Publication Date: 2018-07-13
DONGGUAN JIAQIAN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent (201610175274.3) discloses a preparation method of fine silica airgel modified foamed cement insulation board, which combines fine silica airgel with foam stabilizer, takes cement as the base material, and mixes Water-reducing agent, polypropylene fiber, and lithium-based curing agent are prepared through foaming, curing, supporting, cutting and other processes under the action of foaming agent. Although the prepared board has excellent thermal insulation performance, the mechanical properties need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing a high-performance thermal insulation composite board, comprising the following steps:

[0025] (1) Soak the cotton raw material in concentrated sulfuric acid solution, let it stand for 20 minutes, and then stir it in a water bath at 40°C for 2 hours to obtain a cellulose solution; wash the prepared cellulose solution with deionized water and centrifuge until The solution is neutral, and the deionized water is removed to obtain a cellulose sol; wherein, the ratio of the cotton raw material to the concentrated sulfuric acid solution is 1g: 15mL;

[0026] (2) Mix and stir methyltrimethoxysilane, dimethyldimethoxysilane, cetyltrimethylammonium bromide, N,N-dimethylamide, acetic acid solution and ethanol evenly, then set Stir and mix in a water bath at 25°C for 60 minutes to obtain a base liquid; among them, methyltrimethoxysilane, dimethyldimethoxysilane, hexadecyltrimethylammonium bromide, N,N-dimethyl The dosage ratio of amide, acetic acid and eth...

Embodiment 2

[0031] A method for preparing a high-performance thermal insulation composite board, comprising the following steps:

[0032] (1) Soak the cotton raw material in concentrated sulfuric acid solution, let it stand for 20 minutes, and then stir it in a water bath at 40°C for 2 hours to obtain a cellulose solution; wash the prepared cellulose solution with deionized water and centrifuge until The solution is neutral, and the deionized water is removed to obtain a cellulose sol; wherein, the ratio of the cotton raw material to the concentrated sulfuric acid solution is 1g: 15mL;

[0033] (2) Mix and stir methyltrimethoxysilane, dimethyldimethoxysilane, cetyltrimethylammonium bromide, N,N-dimethylamide, acetic acid solution and ethanol evenly, then set Stir and mix in a water bath at 40°C for 80 minutes to obtain a base liquid; among them, methyltrimethoxysilane, dimethyldimethoxysilane, hexadecyltrimethylammonium bromide, N,N-dimethyl The dosage ratio of amide, acetic acid and eth...

Embodiment 3

[0038] A method for preparing a high-performance thermal insulation composite board, comprising the following steps:

[0039] (1) Soak the cotton raw material in concentrated sulfuric acid solution, let it stand for 25 minutes, and then stir it in a water bath at 45°C for 2.2 hours to obtain a cellulose solution; wash and centrifuge the prepared cellulose solution with deionized water Until the solution is neutral, remove the deionized water to obtain a cellulose sol; wherein, the ratio of the cotton raw material to the concentrated sulfuric acid solution is 1g:20mL;

[0040] (2) Mix and stir methyltrimethoxysilane, dimethyldimethoxysilane, cetyltrimethylammonium bromide, N,N-dimethylamide, acetic acid solution and ethanol evenly, then set Stir and mix in a water bath at 30°C for 60 minutes to obtain a base liquid; among them, methyltrimethoxysilane, dimethyldimethoxysilane, hexadecyltrimethylammonium bromide, N,N-dimethyl The dosage ratio of amide, acetic acid and ethanol is...

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PUM

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Abstract

The invention discloses a preparation method of a high-performance heat-insulating composite plate. The preparation method of the high-performance heat-insulating composite plate particularly comprises the following steps: firstly, preparing cellulose toughened silicon dioxide aerogel particles from a cotton raw material as a raw material; secondly, mixing and stirring the prepared cellulose toughened silicon dioxide aerogel particles and cement uniformly; thirdly, sequentially adding a polycarboxylic acid water reducer, river sand, nanometer titanium dioxide, a foam stabilizer, a curing agentand deionized water, and mixing and stirring uniformly; fourthly, adding a foaming agent and stirring to prepare slurry; and finally, putting the prepared slurry into a mold to perform compression molding, and maintaining, demolding and cutting to prepare the high-performance heat-insulating composite plate. The prepared composite plate has excellent mechanical property and high heat-insulating property.

Description

Technical field: [0001] The invention relates to the field of building materials, in particular to a preparation method of a high-performance thermal insulation composite board. Background technique: [0002] Cement foam insulation board refers to the insulation board made of foamed cement technology, cement foam insulation board, also known as foamed concrete insulation board, inorganic arson cement foam insulation board, which is made of ordinary portland cement, Ash, foaming agent, admixture, etc. are used as materials. After compounding, stirring, foaming, cutting and other processes, the lightweight bubble-like thermal insulation material is characterized by the formation of foam insulation boards inside the concrete. It is a high-performance thermal insulation material. Inorganic thermal insulation material can be widely used in building exterior wall thermal insulation systems. [0003] Chinese patent (201610175274.3) discloses a preparation method of fine silica air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/08C04B38/02C04B28/00
CPCC04B28/00C04B2111/40C04B2201/32C04B2201/50C04B18/248C04B14/064C04B14/06C04B14/305C04B2103/302C04B24/2623C04B24/121C04B24/34C04B38/08C04B38/02
Inventor 王海燕
Owner DONGGUAN JIAQIAN NEW MATERIAL TECH CO LTD
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