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A phase change material with a phase change temperature of -20°C

A phase-change material and phase-change temperature technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of unstable performance, small latent heat of phase change, poor use effect, etc., and achieve low cost and phase change. The effect of large latent heat and 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 -20°C, comprising the following components by weight percentage:

[0041] Ammonium chloride 18%

[0042] Acrylic 15%

[0043] Alum 10%

[0044] Maleic anhydride 13%

[0045] Sodium hydroxymethylcellulose 7.5%

[0046] Grease 20%

[0047] water balance.

Embodiment 2

[0049] A phase change material with a phase change temperature of -20°C, comprising the following components by weight percentage:

[0050] Ammonium chloride 14%

[0051] Acrylic 8%

[0052] Alum 6%

[0053] Maleic anhydride 15%

[0054] Hydroxymethyl Cellulose Sodium 7%

[0055] Grease 10%

[0056] water balance.

Embodiment 3

[0058] A phase change material with a phase change temperature of -20°C, comprising the following components by weight percentage:

[0059] Ammonium chloride 9%

[0060] Acrylic 17%

[0061] Alum 7%

[0062] Maleic anhydride 8%

[0063] Sodium hydroxymethylcellulose 8%

[0064] Grease 17%

[0065] water balance.

[0066] The phase change material disclosed by the present invention has a phase change temperature of -20°C, which can strictly control the phase change temperature at -20°C, has a large phase change latent heat, has stable performance, no phase separation phenomenon, and the phase change process is reversible , can be recycled more than 10,000 times, has a wide range of raw materials, low cost, no toxic and side effects, safe and reliable, reduces the power consumption in the process of transportation and storage, and achieves positive effects of energy saving and emission reduction. Extended application during freezing.

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Abstract

The invention discloses a phase-change material with a phase-change temperature of -20 DEG C. The phase-change material comprises, by weight, 5 to 25% of ammonium chloride, 3.5 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 25% of grease, with the balance being water. According to the invention, the phase-change material with the phase-change temperature of -20 DEG C has the advantages of widely available raw materials, low cost, no toxic and side effects, safety, reliability, 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, reduction of electric energy consumed in the processes of transport and storage and active effects of energy saving and emission reduction.

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 -20°C. Background technique [0002] Energy is the substance that provides energy conversion to nature and is the material basis of human activities. According to the type of use, energy can be divided into conventional energy and new energy. Conventional energy is relatively mature in technology and widely used, but with the continuous development of human society, people's demand for energy is growing rapidly, especially the worldwide oil crisis that occurred in the 20th century, which made energy issues widely recognized by people. attention, so energy saving has become an urgent problem to be solved. As an 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...

Claims

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Application Information

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