Composite phase-change energy storage material and preparation method thereof
An energy storage material and composite phase change technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of reducing effective components, affecting energy storage effect, separating salt and water, etc., to achieve enhanced fusion, good The effect of application value and low cost
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Embodiment 1
[0033] A composite phase change energy storage material, comprising the following components in mass percent:
[0034] Sodium acetate trihydrate 26%,
[0035] Sodium Sulfate Decahydrate 30%,
[0036] Sodium Thiosulfate Pentahydrate 30%,
[0038] Sodium hexametaphosphate 2%,
[0040] Simethicone 2%,
[0041] Fatty acid methyl esters 3%,
[0042] White carbon black (300 mesh) 3%.
[0043] The preparation method is as follows: (1) Weigh each component according to the proportion, add agar powder into water, fully dissolve to obtain modifier agar powder solution for later use, wherein the mass ratio of agar powder to water is 1:4;
[0044] (2) Fully mix sodium acetate trihydrate, sodium thiosulfate pentahydrate, and sodium sulfate decahydrate in proportion, heat to 50°C, after the mixture melts, stir to make the mixture uniform and form a eutectic solution, then add in proportion Nucleating agent barium carbonate, sodi...
Embodiment 2
[0049] A composite phase change energy storage material, comprising the following components in mass percent:
[0050] Sodium acetate trihydrate 48%,
[0051] Sodium Sulfate Decahydrate 25%,
[0052] Sodium Thiosulfate Pentahydrate 15%,
[0054] Sodium hexametaphosphate 1%,
[0055] Agar powder 2%,
[0056] Simethicone 1%,
[0057] Fatty acid methyl esters 3%,
[0058] White carbon black (300 mesh) 3%.
[0059] Its preparation method is as follows: (1) Weigh each component in proportion, add agar powder into water, fully dissolve, and obtain modifier agar powder solution for later use, wherein the mass ratio of agar powder to water is 1:6;
[0060] (2) Fully mix sodium acetate trihydrate, sodium thiosulfate pentahydrate, and sodium sulfate decahydrate in proportion, heat to 80°C, after the mixture melts, stir to make the mixture uniform and form a eutectic solution, then add in proportion Nucleating agent barium carbonate, sodium hexametap...
Embodiment 3
[0065] A composite phase change energy storage material, comprising the following components in mass percent:
[0066] Sodium acetate trihydrate 30%,
[0067] Sodium Sulfate Decahydrate 30%,
[0068] Sodium Thiosulfate Pentahydrate 30%,
[0070] Sodium hexametaphosphate 2%,
[0071] Agar powder 1%,
[0072] Simethicone 2%,
[0073] Fatty acid methyl esters 2%,
[0074] White carbon black (300 mesh) 2%.
[0075] The preparation method is as follows: (1) Weigh each component according to the proportion, add agar powder into water, fully dissolve to obtain modifier agar powder solution for later use, wherein the mass ratio of agar powder to water is 1:5;
[0076] (2) Fully mix sodium acetate trihydrate, sodium thiosulfate pentahydrate, and sodium sulfate decahydrate in proportion, heat to 60°C, after the mixture melts, stir to make the mixture uniform and form a eutectic solution, then add in proportion Nucleating agent barium carbonate, sodium...
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