Building environment-friendly flame-retarding wall composite material

A technology of composite materials and flame-retardant materials, applied in the field of building environmental protection flame-retardant wall composite materials, can solve the problems of unstable organic wall materials, affecting energy storage capacity, and low energy storage utilization rate, and achieve phase change volume change Small size, reduced number of starts and stops, and stable performance

Inactive Publication Date: 2012-01-04
江苏中原建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used wall materials mainly include inorganic and organic materials. Most of the inorganic wall materials are corrosive, and have the disadvantages of overcooling and phase separation during the phase transition process, which affects their energy storage capacity, while organic materials are corrosive. Wall materials are not only less corrosive, almost no phase separation during the phase transition process, but also have stable chemical properties and low prices. However, organic wall materials have the disadvantages of low thermal conductivity and flammability, which make them suitable for use in energy storage systems. Poor heat transfer performance and low utilization rate of energy storage in the application of these materials reduce the efficiency of the system, and the instability of these organic wall materials releases harmful gases such as formaldehyde at any time, which has a great impact on human health. harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix 60% of gypsum powder, 20% of low-calcium fly ash, 5% of water, and 15% of nonadecane evenly, heat until completely melted, stir evenly to form a mixture, and then add 2% mass concentration of Melamine, continue to stir evenly to form a building wall composite material; the solidification temperature of the building wall composite material is determined to be 30.7°C, the melting temperature is 31.7°C, and the latent heat of phase change is 27.8kJ / kg.

Embodiment 2

[0024] Mix 40% of gypsum powder, 10% of low-calcium fly ash, 10% of water, and 40% of nonadecane evenly, heat until completely melted, stir evenly to form a mixture, and then add 6% mass concentration of Melamine, continue to stir evenly to form a building wall composite material; the solidification temperature of the building wall composite material is determined to be 30.6°C, the melting temperature is 31.8°C, and the latent heat of phase change is 28.3kJ / kg.

Embodiment 3

[0026] Mix 75% of gypsum powder, 5% of low-calcium fly ash, 5% of water, and 15% of nonadecane evenly, heat until completely melted, stir evenly to form a mixture, and then add 7% mass concentration of Melamine, continue to stir evenly to form a building wall composite material; the solidification temperature of the building wall composite material is determined to be 30.5°C, the melting temperature is 31.9°C, and the latent heat of phase change is 29.7kJ / kg.

[0027] The invention combines the organic phase change energy storage material with suitable building materials, and adds an appropriate amount of environmentally friendly flame-retardant materials to it, which strengthens the heat transfer in the process of heat storage and release, and solves the problems of liquid phase leakage and corrosion of the energy storage material , At the same time, it also has the function of environmental protection and flame retardant. In the field of building energy conservation, through...

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Abstract

The invention discloses a building environment-friendly flame-retarding wall composite material, which is characterized by comprising the following components in percentage by weight: 20 to 80 percent of gypsum powder, 5 to 20 percent of low-calcium fly ash, 5 to 10 percent of water and 10 to 40 percent of nonadecane. The mixture formed by mixing the components in the range of a mixing ratio is added with a tripolycyanamide environment-friendly flame-retarding material at a mass concentration of 1 to 7 percent. In the invention, organic phase-change energy-storage material and a proper building material are combined, and a proper amount of environment-friendly flame-retarding material is added into the composite material; therefore, the heat transfer in the heat storage and release process is reinforced, the liquid leakage and corrosion problems of the energy-storage material are solved, and the composite material has environment-protection and flame-retarding functions.

Description

technical field [0001] The invention relates to a wall composite building material, in particular to a building environment-friendly flame-retardant wall composite material with environmental protection and flame-retardant functions. Background technique [0002] At present, due to the long growth cycle of wood, the global wood resources are increasingly scarce. In order to improve the utilization rate of wood, it is a new environmental protection and energy-saving technology to use the phase change latent heat of phase change materials to store energy. Phase change materials undergo phase change in themselves During the process, it absorbs the heat of the environment and releases heat to the environment when needed, so as to achieve the purpose of controlling the temperature of the surrounding environment and saving energy. It has broad application prospects in the fields of environmental protection and energy saving of building walls. [0003] The development of modern bui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B24/00C04B24/12
Inventor 张强生成军李秀华谢德法徐国福
Owner 江苏中原建设集团有限公司
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