Organic phase change heat storage material and preparation method thereof

Abstract

The invention relates to the technical field of phase change heat storage materials and preparation methods, and especially relates to an organic phase change heat storage material. The organic phase change heat storage material comprises, by weight, 80-97 parts of an organic phase change material, 1-15 parts of an oxidation inhibitor, 1-5 parts of a thickening agent, 1-5 parts of a nucleating agent and 0.1-5 parts of an enhanced heat conduction material. A preparation method of the organic phase change heat storage material comprises the following steps: heating, stirring and melting the organic phase change material, adding the oxidation inhibitor, the thickening agent, the nucleating agent and the enhanced heat-conducting material, and uniformly stirring and mixing to obtain the organic phase change heat storage material. The problems that in the prior art, the organic phase change material serves as an energy storage main body material, oxidation is prone to occurring, and the heat conductivity coefficient is relatively low are solved, the supercooling and phase separation phenomena of the organic material are effectively prevented by selecting proper materials and proportions, and good cycle stability is shown; and the organic phase change heat storage material also has the advantages of strong oxidation resistance and good thermal conductivity.

Description

technical field

[0001] The invention relates to the technical field of phase-change heat storage materials and preparation methods, in particular to an organic phase-change heat storage material and a preparation method. Background technique

[0002] With the increasingly prominent problems of energy shortage and environmental pollution, people pay more and more attention to the utilization of new energy and the improvement of energy utilization. As an important method to solve the energy supply-demand imbalance problem, energy storage technology is favored by domestic and foreign enterprises and related research institutions. Among them, thermal energy storage based on phase change energy storage materials is one of the most widely used energy storage technologies. Phase change energy storage refers to the storage and release of energy by using phase change materials to absorb or release heat during phase change. Compared with sensible heat storage, it has the advantages o...

Examples

Embodiment 1

[0042] An organic phase-change heat storage material, which comprises the following components in parts by weight: an organic phase-change material (92g of erythritol), an oxidation inhibitor (1g of ethylenediaminetetraacetic acid di Sodium), thickener (1g of konjac flour, 1g of guar gum), nucleating agent (1g of calcium fluoride, 1g of calcium phosphate), enhanced thermal conductivity material (3g of nano-alumina).

[0043] A method for preparing the above-mentioned organic phase change heat storage material, comprising the steps of:

[0044] Step 1. After heating, stirring and melting the organic phase change material according to the above weight ratio, the heating temperature is 135°C, then adding an oxidation inhibitor and stirring evenly, then adding a thickener and stirring evenly, and the stirring rate is 1000r / min, to obtain The viscous mixture is ready for use;

[0045] Step 2: Add a nucleating agent and an enhanced heat-conducting material to the viscous mixture, sti...

Embodiment 2

[0050] An organic phase-change heat storage material, which comprises the following components in parts by weight: an organic phase-change material (92g of erythritol), an oxidation inhibitor (2g of ethylenediaminetetraacetic acid di Sodium), thickener (1g of konjac flour, 1g of guar gum), nucleating agent (1g of calcium fluoride), enhanced thermal conductivity material (3g of nano-alumina).

[0051] A method for preparing the above-mentioned organic phase change heat storage material, comprising the steps of:

[0052] Step 1. After heating, stirring and melting the organic phase change material according to the above weight ratio, the heating temperature is 135°C, then adding an oxidation inhibitor and stirring evenly, then adding a thickener and stirring evenly, and the stirring rate is 1000r / min, to obtain The viscous mixture is ready for use;

[0053] Step 2: Add a nucleating agent and an enhanced heat-conducting material to the viscous mixture, stir and mix evenly at a s...

Embodiment 3

[0058] An organic phase-change heat storage material, which comprises the following components in parts by weight: an organic phase-change material (92g of xylitol), an oxidation inhibitor (2g of butyl hydroxyanisole), Thickener (1g of konjac flour, 1g of guar gum), nucleating agent (1g of calcium fluoride), enhanced thermal conductivity material (3g of expanded graphite).

[0059] A method for preparing the above-mentioned organic phase change heat storage material, comprising the steps of:

[0060] Step 1. After heating, stirring and melting the organic phase change material according to the above weight ratio, the heating temperature is 135°C, then adding an oxidation inhibitor and stirring evenly, then adding a thickener and stirring evenly, and the stirring rate is 1000r / min, to obtain The viscous mixture is ready for use;

[0061] Step 2: Add a nucleating agent and an enhanced heat-conducting material to the viscous mixture, stir and mix evenly at a stirring rate of 250...

technical field

[0001] The invention relates to the technical field of phase-change heat storage materials and preparation methods, in particular to an organic phase-change heat storage material and a preparation method. Background technique

[0002] With the increasingly prominent problems of energy shortage and environmental pollution, people pay more and more attention to the utilization of new energy and the improvement of energy utilization. As an important method to solve the energy supply-demand imbalance problem, energy storage technology is favored by domestic and foreign enterprises and related research institutions. Among them, thermal energy storage based on phase change energy storage materials is one of the most widely used energy storage technologies. Phase change energy storage refers to the storage and release of energy by using phase change materials to absorb or release heat during phase change. Compared with sensible heat storage, it has the advantages o...

Examples

Embodiment 1

[0042] An organic phase-change heat storage material, which comprises the following components in parts by weight: an organic phase-change material (92g of erythritol), an oxidation inhibitor (1g of ethylenediaminetetraacetic acid di Sodium), thickener (1g of konjac flour, 1g of guar gum), nucleating agent (1g of calcium fluoride, 1g of calcium phosphate), enhanced thermal conductivity material (3g of nano-alumina).

[0043] A method for preparing the above-mentioned organic phase change heat storage material, comprising the steps of:

[0044] Step 1. After heating, stirring and melting the organic phase change material according to the above weight ratio, the heating temperature is 135°C, then adding an oxidation inhibitor and stirring evenly, then adding a thickener and stirring evenly, and the stirring rate is 1000r / min, to obtain The viscous mixture is ready for use;

[0045] Step 2: Add a nucleating agent and an enhanced heat-conducting material to the viscous mixture, sti...

Embodiment 2

[0050] An organic phase-change heat storage material, which comprises the following components in parts by weight: an organic phase-change material (92g of erythritol), an oxidation inhibitor (2g of ethylenediaminetetraacetic acid di Sodium), thickener (1g of konjac flour, 1g of guar gum), nucleating agent (1g of calcium fluoride), enhanced thermal conductivity material (3g of nano-alumina).

[0051] A method for preparing the above-mentioned organic phase change heat storage material, comprising the steps of:

[0052] Step 1. After heating, stirring and melting the organic phase change material according to the above weight ratio, the heating temperature is 135°C, then adding an oxidation inhibitor and stirring evenly, then adding a thickener and stirring evenly, and the stirring rate is 1000r / min, to obtain The viscous mixture is ready for use;

[0053] Step 2: Add a nucleating agent and an enhanced heat-conducting material to the viscous mixture, stir and mix evenly at a s...

Embodiment 3

[0058] An organic phase-change heat storage material, which comprises the following components in parts by weight: an organic phase-change material (92g of xylitol), an oxidation inhibitor (2g of butyl hydroxyanisole), Thickener (1g of konjac flour, 1g of guar gum), nucleating agent (1g of calcium fluoride), enhanced thermal conductivity material (3g of expanded graphite).

[0059] A method for preparing the above-mentioned organic phase change heat storage material, comprising the steps of:

[0060] Step 1. After heating, stirring and melting the organic phase change material according to the above weight ratio, the heating temperature is 135°C, then adding an oxidation inhibitor and stirring evenly, then adding a thickener and stirring evenly, and the stirring rate is 1000r / min, to obtain The viscous mixture is ready for use;

[0061] Step 2: Add a nucleating agent and an enhanced heat-conducting material to the viscous mixture, stir and mix evenly at a stirring rate of 250...

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