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Heat conduction enhanced MOFs (metal-organic frameworks) PCM (phase change material) and preparation method thereof

A phase change energy storage material and a technology for enhancing thermal conductivity, which can be used in heat exchange materials, chemical instruments and methods, sustainable manufacturing/processing, etc. Effect of corrosion-free preparation process

Inactive Publication Date: 2018-12-14
GUILIN QINGTONG NON FERROUS METAL ARTS & CRAFTS MATERIAL DEV CO LTD
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Problems solved by technology

[0012] Aiming at the technical problem of low thermal conductivity existing in the prior art, the present invention provides a thermal conductivity enhanced MOFs phase change energy storage material and a preparation method thereof

Method used

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  • Heat conduction enhanced MOFs (metal-organic frameworks) PCM (phase change material) and preparation method thereof

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Embodiment

[0029] Preparation method of heat conduction enhanced organic phase change energy storage material:

[0030] Step 1, the emulsification process of the organic phase change material, first mix the nanoparticles and the organic phase change material and ultrasonically disperse for 30 minutes to form a uniform dispersion. Then, after mixing the dispersion with emulsifier and solvent evenly, stirring and emulsifying at 40-70°C and 1000-1500 RMP for 2 h to form a stable and uniform emulsion, and obtain an organic phase change material containing nanoparticles;

[0031] Step 2, take a clean and dry beaker, add MOFs materials, and dry in an oven at 110°C for 30 minutes;

[0032] Step 3, mix the organic phase change material containing nanoparticles obtained in step 1 and the dry MOFs material obtained in step 2, and disperse ultrasonically for 10 min to mix the phase change material and MOFs material evenly, and place the mixed sample at 50°C Vacuum the oven for 8 hours, during whic...

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Abstract

The invention provides a heat conduction enhanced MOFs (metal-organic frameworks) PCM (phase change material). The heat conduction enhanced MOFs PCM is prepared from an organic PCM containing heat conduction enhanced nano-particles as a core material and a MOFs material as a wall material. A preparation method of the heat conduction enhanced MOFs PCM comprises the following steps: 1) a process ofemulsifying the organic PCM; 2) a process of adsorbing the organic PCM containing the nano-particles with the MOFs material under a vacuum condition; and 3) a process of taking out a product obtainedafter vacuum adsorption. The heat conduction enhanced MOFs PCM has the advantages that 1) the heat response speed is high, i.e. the heat conduction property is high; 2) the heat accumulation density is high; 3) the heat cycling stability is high; and 4) raw materials are safe, non-toxic and non-corrosive, and the technical characteristics of being simple in preparation process and low in cost areachieved. Therefore, the heat conduction enhanced MOFs PCM is higher in heat conductivity and stability, the using ratio of energy sources is improved, and the application prospect is wide.

Description

technical field [0001] The invention relates to the technical field of phase-change materials in the technical field of preparation or chemical processing of organic polymer compounds, in particular to a thermal conductivity-enhanced MOFs phase-change energy storage material and a preparation method thereof. technical background [0002] With the development of economy and the advancement of science and technology, traditional energy is being consumed at an alarming rate, and human beings are facing unprecedented energy shortages. There are two basic ways to solve this problem: one is to develop renewable energy; the other is to improve energy efficiency. Therefore, energy storage is particularly important. Thermal energy storage systems offer possibilities for energy storage, and latent heat storage is the most efficient way to store thermal energy. Phase change material (Phase Change Material, PCM) is a material that uses the heat absorption and heat release characterist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCC09K5/063Y02P20/10
Inventor 阳家盛
Owner GUILIN QINGTONG NON FERROUS METAL ARTS & CRAFTS MATERIAL DEV CO LTD
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