Process for preparing organic phase-change material composite expanded perlite by emulsification method

A technology for the preparation of expanded perlite, which is applied in the field of building energy conservation, can solve the problems of affecting the mechanical properties of building materials, affecting the fire performance of products, and worrying about the practical prospect, so as to facilitate the promotion and application of industrialization, easy implementation and control, and high phase transition The effect of energy storage heat capacity

Inactive Publication Date: 2008-03-12
宁波荣山新型材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These technologies may affect the mechanical properties of building materials, or

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 20kg of paraffin, 100kg of water, and 10kg of paraffin emulsifier (produced by Haian Petrochemical Factory in Jiangsu Province). Preparation process: Heat the water to 80°C, add the measured paraffin emulsifier to the measured paraffin, mix and heat to melt, then add this mixture to the above hot water and stir evenly, keep it warm for 1 hour, and cool to form a paraffin emulsion. Then, the emulsified organic phase change material is completely adsorbed and infiltrated into the expanded perlite by using a decompression adsorption process, and the organic phase change material composite expanded perlite particles are obtained. The decompression adsorption process is as follows: put the above-mentioned paraffin emulsion and 100kg of expanded perlite particles with a diameter of 4mm into a vacuum stirring pot, and vacuumize while stirring, and the vacuum degree reaches 9.8×10 2 Pa hold it for 3 minutes, then slowly release the pressure to normal pressure, repeat the above ...

Embodiment 2

[0024] Fatty acid 50kg, sodium dodecyl sulfate 10kg, water 100kg. Preparation process: Heat water to 80°C, mix fatty acid and sodium dodecylsulfonate and heat to melt, then add this mixture into the above hot water and stir evenly, keep warm for 2 hours, and cool to form an emulsion. Then, the emulsified organic phase change material is completely adsorbed and infiltrated into the expanded perlite by using a decompression adsorption process, and the organic phase change material composite expanded perlite particles are obtained. The decompression adsorption process is as follows: put the above-mentioned emulsion and 100kg of expanded perlite particles with a diameter of 8mm into a vacuum stirring pot, and vacuumize while stirring, and the vacuum degree reaches 9.8×10 -2 Pa hold it for 3 minutes, then slowly release the pressure to normal pressure, repeat the above vacuuming and pressure relief process twice, and let the material dry naturally, that is, the organic phase change...

Embodiment 3

[0027] 100kg of n-dodecane, 80kg of monooleate, and 200kg of water. Preparation process: heat water to 80°C, mix n-dodecane and monooleate and heat to melt, then add this mixture into the above-mentioned hot water and stir evenly, keep it warm for 4 hours, and cool to form an emulsion. Then, the emulsified organic phase change material is completely adsorbed and infiltrated into the expanded perlite by using a decompression adsorption process, and the organic phase change material composite expanded perlite particles are obtained. The decompression adsorption process is as follows: put the above emulsion and 200kg of expanded perlite particles with a diameter of 6mm into a vacuum stirring pot, and vacuumize while stirring, and the vacuum degree reaches 9.8×10 -2 Pa hold it for 3 minutes, then slowly release the pressure to normal pressure, repeat the above vacuuming and pressure relief process twice, and let the material dry naturally, that is, the organic phase change materia...

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Abstract

The present invention discloses a preparation process for organic phase change material composite expansion perlite materials in emulsification method, which comprises the following steps: the uniform and mixed emulsion is obtained by stirring and mixing the organic phase change materials and the emulsifying agents in the water, the temperature of which ranges from 20 to 100 Celsius system; the organic phase change material composite expansion perlite particles are obtained by adopting the decompression adsorption process to completely absorb and deliver the obtained emulsion into the expansion perlite by permeation. The present invention has the following advantages: organic phase change materials completely permeate into the internal pores of the expansion perlite particles and the larger adsorption force has an effect between the phase change materials and the pores of the expansion perlite after the phase change materials are emulsified, and the organic phase change materials are combined stably with the common building materials; a very strong adsorption force has an effect between the phase change materials and the pores of the expansion perlite after the phase change materials are emulsified, thus realizing high incorporation of the organic phase change materials and assuring that the phase change energy storing aggregates have high energy storing heat capacity; the preparation process is simple and is easy to be carried out and controlled, thus being beneficial to the industrialized popularization and application.

Description

technical field [0001] The invention relates to the field of building energy conservation, in particular to an emulsification preparation process of an organic phase change material composite expanded perlite material. Background technique [0002] The energy consumption per unit building area in my country is three times that of developed countries with similar climate conditions, and 95% of buildings are high-energy buildings, and building energy consumption accounts for about 30% of the total energy consumption of the whole society. With the rapid growth of my country's economic construction and real estate industry, it will bring a greater power burden to China, which is short of resources and increasingly polluted. Therefore, building energy conservation is an extremely important and urgent subject for our country. [0003] Thermal energy storage technology can alleviate the contradiction between the energy supply and demand of buildings in terms of time and intensity,...

Claims

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Application Information

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IPC IPC(8): C04B20/10C04B14/18
Inventor 王智宇王小山阮华施卫平
Owner 宁波荣山新型材料有限公司
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