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Supporting immobilization method of organic phase-change material by opoka

A technology of protein soil and organic phase, applied in the field of material science and engineering, can solve the problems of high carrier cost, poor durability, inappropriate phase transition temperature, etc., and achieve simple preparation process, high stability and good practicability Effect

Inactive Publication Date: 2012-10-10
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of the load-type phase change energy storage composite materials currently disclosed based on these standards are: (1) the phase change temperature is not suitable, which is higher than the room temperature range that people feel comfortable; (2) the latent heat of phase change is not high, and many Composite materials can't reach 50J / g; (3) The durability is not good, and the phase change material is easy to leak, which leads to the decline of heat storage performance during use; (4) The cost of the carrier is high and the economy is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 1000g of dry protein soil and roast it in a muffle furnace at 400°C for 2h; add 4000mL of water after cooling to room temperature, and make a slurry in a temperature-controllable reaction tank, then add 17.5g of cetyltrimethylammonium bromide, After stirring and reacting for 2 hours at 30°C, filter and dry at 105°C to obtain pore- and surface-modified protein clay; mix the modified protein clay with 500g organic phase change compound (50g liquid paraffin + 450g octadecane) Put it in a temperature-controllable reaction tank, stir and react at 95° C. for 2 hours, and obtain the organic phase change material supported by protein soil.

Embodiment 2

[0026] Take 1000g of dry protein clay and roast it in a muffle furnace at 400°C for 2h; after cooling to room temperature, add 4000mL of water to make a slurry in a temperature-controllable reaction tank, add 17.5g of hexadecyltrimethylammonium bromide, and After stirring and reacting for 2 hours at 30°C, filter and dry at 105°C to obtain pore- and surface-modified protein clay; mix the modified protein clay with 500g organic phase change material compound (100g polyethylene glycol 600+400g ten Octane) was placed in a temperature-controllable reaction tank, stirred and reacted at 95° C. for 2 hours, and the organic phase change material with protein soil loading and immobilization was obtained.

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PUM

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Abstract

The invention relates to a supporting immobilization method of an organic phase-change material by opoka, and belongs to the field of material science and engineering. The method comprises the following steps of: calcining the opoka; modifying ducts and surface of the calcined opoka with organic matters; supporting and immobilizing the modified opoka to an organic phase-change material to obtain an opoka supported immobilized organic phase-change material with a temperature regulation function. The opoka supported immobilized organic phase-change material prepared by adopting the method has a phase-change temperature between 20 and 30 DEG C and latent heat of phase change more than or equal to 60J / g, little phase-change substances leaks in the phase change process, and the phase-change performance has high stability; and the preparation process is simple, the cost is low, and the practicality is good.

Description

Technical field: [0001] The invention relates to a method for loading and fixing organic phase change materials with protein soil, which belongs to the field of material science and engineering. Background technique: [0002] A phase change energy storage material refers to a material that can be used for energy storage by utilizing a large amount of heat energy that it absorbs (releases) when its state changes. A new type of energy-saving material for the purpose of temperature adjustment and constant temperature by adjusting the ambient temperature in the closed area. Phase change energy storage temperature control can be used to alleviate the mismatch of energy supply and demand in terms of time, intensity and location. Energy saving and other fields have broad application prospects. [0003] Phase change materials with application prospects are generally organic or inorganic solid-liquid phase change materials. In practice, this solid-liquid phase change material must...

Claims

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Application Information

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IPC IPC(8): C09K5/06
Inventor 郑水林孔维安张玉忠刘月孙志明
Owner CHINA UNIV OF MINING & TECH (BEIJING)