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Preparation method of phase change energy storage material

A phase-change energy storage material and energy storage material technology, which is applied in the field of preparation of phase-change energy storage materials, can solve problems such as energy waste, and achieve the effects of alleviating large energy consumption, simple preparation methods, and stable performance

Inactive Publication Date: 2017-09-22
XUZHOU SUPAI HIGH TEMPERATURE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature for melting snow and ice is only about 4-5°C. If the above-mentioned phase-change energy storage materials are applied to pavement, the phase-change temperature of most phase-change materials is above 10°C. high waste of energy

Method used

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  • Preparation method of phase change energy storage material

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Effect test

Embodiment 1

[0014] The phase change energy storage material provided in this embodiment is composed of n-decyl alcohol and n-undecyl alcohol in a ratio of 90:10.

[0015] Firstly weigh n-decyl alcohol and n-undecyl alcohol respectively in proportion, mix the two, then heat the above mixture in a water bath at 50°C to completely melt each component and stir for 20 minutes to make the mixture uniform, and finally cool to room temperature. into phase change energy storage materials.

[0016] Measure the temperature change curve of phase change material with time by step cooling method, as shown in the attached figure 1 As shown, the phase change temperature of the phase change material is determined by the curve, and it can be seen that the phase change temperature is about 4°C measured by the step cooling method. The low-temperature phase-change energy storage material provided by the invention is a colorless transparent viscous liquid at room temperature. When using this material to melt...

Embodiment 2

[0018] The phase change energy storage material provided in this embodiment is composed of n-decyl alcohol and n-undecyl alcohol in a ratio of 88:12.

[0019] First weigh n-decyl alcohol and n-undecyl alcohol respectively in proportion, mix the two, then heat the above mixture in a water bath at 40°C to completely melt each component and stir for 20 minutes to make the mixture uniform, and finally cool to room temperature. into phase change energy storage materials.

Embodiment 3

[0021] The phase change energy storage material provided in this embodiment is composed of n-decyl alcohol and n-undecyl alcohol in a ratio of 92:8.

[0022] Firstly weigh n-decyl alcohol and n-undecyl alcohol respectively in proportion, mix the two, then heat the above mixture in a water bath at 60°C to completely melt each component and stir for 30 minutes to make the mixture uniform, and finally cool to room temperature. into phase change energy storage materials.

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Abstract

The invention discloses a preparation method of a phase change energy storage material. The preparation method comprises the following steps: weighing n-decyl alcohol and n-undecanol in a mass ratio of (90 to 92):(8 to10) respectively, and mixing the two; heating the mixture in a water bath tank at 40-60 DEG C, completely melting the components and stirring for 20-30min; finally, cooling to room temperature to obtain the low-temperature phase change energy storage material. The preparation method disclosed by the invention is simple and convenient to operate; a binary phase change material is formed by compounding; the shortcomings of various raw materials in performance are made up; a phase change material with a lower phase change temperature is obtained. The provided low-temperature phase change energy storage material has stable performance, is nontoxic and noncorrosive, and can be recycled; the phase change temperature is about 4 DEG C, and the phase change energy storage material can be widely applied to the snow melting and deicing in various large airports and roads in the northern and plateau regions in winter; the problems of high energy consumption, long time consumption, environmental unfriendliness and the like can be effectively relieved.

Description

technical field [0001] The invention relates to a preparation method of a phase change energy storage material. It belongs to the field of energy storage materials. Background technique: [0002] During the phase change process, phase change materials can absorb or release huge amounts of energy. When the physical state changes, the temperature of the material itself remains almost constant until the phase transition is completed. Although the temperature remains unchanged, the latent heat absorbed or released is quite large. Since this type of material has the advantages of approximately constant temperature during the phase transition process and controllable system temperature, it has been widely used in alleviating the energy crisis and improving energy utilization. As we all know, road surfaces are often covered with ice and snow in winter, which poses a great hazard to driving safety. Using phase change materials to melt snow and ice can effectively reduce energy con...

Claims

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Application Information

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IPC IPC(8): C09K5/06C09K3/18
CPCC09K5/063C09K3/185
Inventor 吴树全
Owner XUZHOU SUPAI HIGH TEMPERATURE NEW MATERIAL CO LTD
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