Porous geopolymer-based phase-change energy storage material

A phase-change energy storage material and geopolymer technology, which is applied in the field of porous geopolymer-based phase-change energy storage materials and porous materials for phase-change energy storage, can solve the problems of inability to phase-change energy storage and achieve fast curing speed , large latent heat value, and the effect of reducing environmental energy consumption

Inactive Publication Date: 2014-03-19
广西启利新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcoming the shortcomings of existing porous geopolymer-based materials that cannot phase change energy storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Slurry configuration: kaolin with a fineness of 200-1000 mesh was calcined at 800° C. for 2 hours at a constant temperature to obtain metakaolin. Weigh 15 parts of metakaolin, 35 parts of 325 mesh slag, 15 parts of 2nd grade fly ash, 0.5 part of polypropylene fiber, 0.4 part of redispersible latex powder, and 0.005 part of phase change microcapsules with a phase transition temperature of 20°C, and Mix it uniformly with 50 parts of water glass with a modulus of 1.3 and a Baume degree of 40 to prepare a slurry for use.

[0026] (2) Configuration of composite foaming agent: Take 24 parts of hydrogen peroxide, 64 parts of water, 1 part of animal foaming aid prepared by animal foaming agent and water at a ratio of 1:50, 0.6 part of lauryl betaine, Mix well and set aside.

[0027] (3) Mix the slurry and the composite foaming agent at a weight ratio of 9:1, and stir at high speed for 20 minutes to obtain a foamed slurry.

[0028] (4) Pour the obtained foaming slurry into...

Embodiment 2

[0030] (1) Preparation of slurry: The preparation of metakaolin is the same as in Example 1. Weigh 20 parts of metakaolin, 45 parts of slag, 20 parts of fly ash, 1 part of polypropylene fiber, 0.8 part of redispersible latex powder, and 0.03 part of phase change microcapsules with a phase transition temperature of 25°C, mix and stir evenly Stir with 75 parts of water glass with a modulus of 1.2 and a Baume degree of 40 to obtain a slurry for use.

[0031] (2) Preparation of composite foaming agent: Take 35 parts of hydrogen peroxide, 75 parts of tap water, 0.8 part of coconut oil fatty acid diethanolamide, and 0.4 parts of animal foaming aid prepared by animal foaming agent and water at a ratio of 1:50. After mixing and stirring evenly, a composite foaming agent is obtained for use.

[0032] (3) Mix the slurry and the composite foaming agent according to the weight ratio of 38:1, and stir at high speed for 20 minutes to obtain the foamed slurry.

[0033] (4) Inject the foami...

Embodiment 3

[0035] (1) Preparation of slurry: The preparation of metakaolin is the same as in Example 1. Weigh 10 parts of metakaolin, 20 parts of slag, 10 parts of fly ash, 0.1 part of polypropylene fiber, 0.3 part of redispersible latex powder, and 0.03 part of phase change microcapsules with a phase transition temperature of 20°C. After mixing and stirring evenly, it is mixed with 30 parts of water glass having a modulus of 1.4 and a Baume degree of 40 to obtain a slurry for use.

[0036] (2) Preparation of composite foaming agent: Take 24 parts of hydrogen peroxide, 64 parts of water, 1 part of animal foaming aid prepared by animal foaming agent and water at a ratio of 1:60, 0.5 part of lauryl betaine, Mix well and set aside.

[0037] (3) Mix the slurry and composite foaming agent at a ratio of 30:1, and stir at high speed for 20 minutes to obtain a foamed slurry.

[0038] (4) Inject the foaming slurry into the mold to prepare the foam block, remove the mold after 2 hours to obtain ...

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Abstract

The invention discloses a porous geopolymer-based phase-change energy storage material. The existing basic geopolymer-based porous materials all have no phase-change energy storage function. The porous geopolymer-based phase-change energy storage material is composed of slurry and a composite foaming agent in the weight ratio of (9-38): 1, wherein the slurry is composed of 20-50 parts of water glass, 20-50 parts of mineral waste residue, 10-20 parts of coal ash, 10-20 parts of metakaolin, 0.1-1.5 parts of polypropylene fiber, 0.3-1.0 part of redispersible latex powder, and 0.005-0.03 part of phase change microcapsule; the composite foaming agent is composed of 24-35 parts of hydrogen peroxide, 64-75 parts of water, 0.5-1 part of foam stabilizer and 1-1.5 parts of animal foaming agent. The porous geopolymer-based phase-change energy storage material provided by the invention maintains the advantages of the existing basic geopolymer-based porous materials such as even foam bore diameter, low heat conductivity coefficient, high solidification speed, high production efficiency and low cost, and wide raw material source; the porous geopolymer-based phase-change energy storage material is also capable of absorbing and releasing energy; therefore, the effects of energy saving and environmental protection can be achieved truly and the shortcomings of the similar materials are made up. The porous geopolymer-based phase-change energy storage material is a fireproof and durable basic geopolymer-based porous material which is capable of realizing phase-change energy storage.

Description

technical field [0001] The invention relates to a porous geopolymer-based phase change energy storage material, in particular to a phase change energy storage porous material, which belongs to the technical field of new materials. Background technique [0002] my country's building energy consumption is high, and building-related energy consumption has surpassed industry to become the largest energy consumer, accounting for 46.7% of total energy consumption. The Twelfth Five-Year Plan for National Economic and Social Development pointed out that my country’s urbanization rate was 47.5% in 2010, and will maintain an annual growth rate of 0.8% during the “Twelfth Five-Year Plan” period, and will reach 51.5% by the end of the “Twelfth Five-Year Plan”. %. my country's urban and rural new construction area is 2 billion to 3 billion square meters every year, and the existing buildings are about 43 billion square meters. Building energy conservation has become an important part of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B24/08C04B24/26C04B18/30
CPCY02P40/10Y02W30/91
Inventor 刘海锋巢启程峰黄承好王新钟勤
Owner 广西启利新材料科技股份有限公司
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