A phase change material with a phase change temperature of -25°C

A technology of phase change materials and phase change temperature, applied in heat exchange materials, sustainable manufacturing/processing, chemical industry, etc., can solve problems such as unstable performance, poor use effect, small phase change latent heat, etc., and achieve cost reduction Low, large latent heat of phase change, no toxic side effects

Active Publication Date: 2016-07-06
SUZHOU ANTEK INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing phase change materials have small phase change latent heat, unstable performance, and poor use effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A phase change material with a phase change temperature of -25°C, including the following components by weight percentage:

[0041] Ammonium chloride 17%

[0042] Acrylic 5%

[0043] Alum 12%

[0044] Maleic anhydride 18%

[0045] Sodium hydroxymethyl cellulose 6%

[0046] Fat 15%

[0047] Water balance.

Embodiment 2

[0049] A phase change material with a phase change temperature of -25°C, including the following components by weight percentage:

[0050] Ammonium chloride 15%

[0051] Acrylic 18%

[0052] Alum 8%

[0053] Maleic anhydride 10%

[0054] Sodium hydroxymethyl cellulose 7%

[0055] Fat 18%

[0056] Water balance.

Embodiment 3

[0058] A phase change material with a phase change temperature of -25°C, including the following components by weight percentage:

[0059] Ammonium chloride 12%

[0060] Acrylic 10%

[0061] Alum 10%

[0062] Maleic anhydride 9%

[0063] Sodium hydroxymethyl cellulose 5%

[0064] Fat 16%

[0065] Water balance.

[0066] The phase change material with a phase change temperature of -25°C disclosed by the present invention has stable performance, no phase separation phenomenon, reversible phase change process, can make the phase change temperature strictly controlled at -25°C, has a large latent heat of phase change, and can be used repeatedly. It has a wide range of raw materials, low cost, non-toxic and side effects, safe and reliable, reduces the electrical energy consumed in the transportation and storage process, achieves the positive effect of energy saving and emission reduction, and can be popularized and applied in the cold storage and freezing process of food and medicine. .

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Abstract

The invention discloses a phase-change material with a phase-change temperature of -25 DEG C. The phase-change material comprises, by weight, 5 to 25% of ammonium chloride, 4.5 to 25% of acrylic acid, 5 to 15% of alum, 5 to 25% of maleic anhydride, 5 to 10% of carboxymethyl cellulose sodium and 10 to 20% of grease, with the balance being water. According to the invention, the phase-change material with the phase-change temperature of -25 DEG C has the advantages of great latent heat of phase change, stable performances, no phase separation, reversible phase change process, capacity of being reused more than ten thousands of times, widely available raw materials, low cost, no toxic and side effects, safety, reliability, active effects of energy saving and emission reduction and capability of being popularized and applied in the processes of cold storage and refrigeration in fields like food and medicine.

Description

Technical field [0001] The invention relates to the field of phase change materials, in particular to a phase change material with a phase change temperature of -25°C. Background technique [0002] Energy is a material that provides energy conversion to the nature and is the material basis of human activities. According to the type of use, people can divide energy into conventional energy and new energy. Conventional energy is relatively mature in technology and more commonly used, but with the continuous development of human society, people’s demand for energy is growing rapidly, especially the global oil crisis in the twentieth century, which caused the energy problem to be universal Therefore, energy saving has become an urgent problem to be solved. As energy storage, phase change materials are of great significance in the fields of energy saving and temperature control. [0003] Phase change materials refer to substances that change physical properties and provide latent heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06
CPCY02P20/10
Inventor 包伟强张磊
Owner SUZHOU ANTEK INDAL
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