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Method for preparing assembly type inner wall prefabricated thermal insulation board by using urban solid waste

A prefabricated and thermal insulation board technology, which is applied in the field of building materials, can solve the problems of high cost and not too obvious effect, and achieve the effects of reduced preparation cost, high mechanical strength and good heat insulation performance

Active Publication Date: 2021-06-29
绍兴职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned prior art, the functionality of the interior wall material is improved by using foaming materials or negative ion releasing materials. Although there is a certain effect, the effect is not too obvious, and the cost is high. The mechanical properties of the prepared insulation board need to be further improved. In order to meet the requirements of the development of modern building materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Drying, pulverizing and sieving the solid waste to obtain pretreated solid waste particles with an average particle size of 0.1mm and a moisture content of less than 0.1%;

[0027] (2) Dissolve 2ml of tetrabutyl titanate in 15ml of absolute ethanol, add 1ml of deionized water dropwise, then add a mixture of 0.4ml of 1mol / L hydrochloric acid and 20ml of absolute ethanol to adjust the pH of the solution to 2-3, Perform prehydrolysis treatment at 45°C for 50 minutes to obtain a prehydrolyzed sol;

[0028] (3) Dissolve 1g of zirconium acetylacetonate in a mixture of 20ml of absolute ethanol and 10ml of deionized water, then add 0.1ml of formamide, stir at room temperature and 1000rpm for 20min, and finally add 1ml of the pre-hydrolyzed sol prepared above , and add 3ml of 1,2-propylene oxide, cross-linking reaction at 60°C for 20min, and finally use absolute ethanol for solvent exchange for 20h, and the obtained mixture is heated at a temperature of 270°C and a pressure ...

Embodiment 2

[0031] (1) Drying, pulverizing and sieving the solid waste to obtain pretreated solid waste particles with an average particle size of 0.3mm and a moisture content of less than 0.1%;

[0032] (2) Dissolve 3ml of tetrabutyl titanate in 15ml of absolute ethanol, add dropwise 1.5ml of deionized water, then add a mixture of 0.6ml of 1mol / L hydrochloric acid and 20ml of absolute ethanol to adjust the pH of the solution to 2-3 , pre-hydrolyzed at 55°C for 70 minutes to obtain a pre-hydrolyzed sol;

[0033] (3) Dissolve 2g of zirconium acetylacetonate in a mixture of 40ml of absolute ethanol and 10ml of deionized water, then add 0.3ml of formamide, stir at room temperature and 3000rpm for 40min, and finally add 5ml of the pre-hydrolyzed sol prepared above , and add 4ml of 1,2-propylene oxide, cross-linking reaction at 80°C for 80min, and finally use absolute ethanol for solvent exchange for 24h, and the obtained mixture is heated at a temperature of 300°C and a pressure of 10MPa Under...

Embodiment 3

[0036] (1) Drying, pulverizing and sieving the solid waste to obtain pretreated solid waste particles with an average particle size of 0.2mm and a moisture content of less than 0.1%;

[0037] (2) Dissolve 2ml of tetrabutyl titanate in 15ml of absolute ethanol, add 1.5ml of deionized water dropwise, then add 0.5ml of 1mol / L hydrochloric acid and 20ml of absolute ethanol to adjust the pH of the solution to 2-3 , pre-hydrolyzed at 50°C for 60 minutes to obtain a pre-hydrolyzed sol;

[0038] (3) Dissolve 1g of zirconium acetylacetonate in a mixture of 30ml of absolute ethanol and 10ml of deionized water, then add 0.2ml of formamide, stir at room temperature and 1500rpm for 30min, and finally add 2ml of the pre-hydrolyzed sol prepared above , and add 3ml of 1,2-propylene oxide, cross-linking reaction at 70°C for 30min, and finally use absolute ethanol for solvent exchange for 21h, and put the obtained mixture in a room with a temperature of 280°C and a pressure of 9MPa Under the c...

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Abstract

The invention discloses a method for preparing an assembly type inner wall prefabricated thermal insulation board by using urban solid waste garbage, wherein the method comprises the following steps: drying, crushing and sieving solid waste garbage to prepare pretreated solid waste garbage particles; preparing titanium-zirconium hybrid aerogel powder; uniformly mixing and stirring aluminum sulfate cement, fly ash, the pretreated solid waste garbage particles, carbon fibers and titanium-zirconium hybrid aerogel powder, adding a foaming agent and a water reducing agent, continuing mixing treatment, and adding water to obtain a mixture; and finally, pouring the mixture, and curing at the temperature of 20-30 DEG C for 7-10 days to obtain the thermal insulation board. The thermal insulation board provided by the invention not only has good thermal insulation performance, but also has high mechanical performance.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a method for preparing a prefabricated thermal insulation board for an assembled inner wall by using municipal solid waste. Background technique [0002] my country is the most populous country in the world, with few energy resources per capita. It is one of the few coal-based countries in the world. However, my country is also a large energy-consuming country. my country's energy consumption is overestimated and ranks second in the world. Therefore, the shortage of energy supply has become an urgent problem to be solved in our country at this stage. With the rapid development of the construction industry in recent years, building energy consumption also occupies a dominant position in the total energy consumption and is still rising year by year. With my country's emphasis on energy consumption, energy-saving standards for civil buildings are also gradually rising. At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B28/06C04B111/40
CPCC04B28/06C04B2201/32C04B2201/50C04B2111/40C04B18/08C04B18/167C04B14/386C04B24/16C04B24/40C04B2103/302C04B38/10Y02W30/91
Inventor 汤薇
Owner 绍兴职业技术学院
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