Expanded graphite-binary organic low-temperature nano phase change energy storage material and preparation method and application thereof
A technology of expanded graphite and energy storage materials, applied in the field of expanded graphite-binary organic low-temperature nano phase change energy storage materials and its preparation, can solve the problem of reducing the latent heat of phase change of energy storage materials, phase change materials and metal foams cannot be 100% Fusion, weakened thermal conductivity and other issues, to achieve the effect of shortening the condensation-thawing time, large energy storage density and latent heat of phase change, and not easy to leak
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Embodiment 1
[0024] (1) Weigh 0.6g of expanded graphite, add ethylene glycol to cover the expanded graphite, ultrasonically treat it at 45HZ for 30min, then heat it in a constant temperature water bath at 70°C for 1h, and finally add deionized water to clean it and put it into the blast After completely drying at 110°C in a drying oven, take it out and let it cool down to room temperature naturally;
[0025] (2) Take by weighing 19.4g n-tetradecane and dodecyl alcohol, wherein the molar mass of n-tetradecane and dodecyl alcohol is 0.737:0.263, add in the beaker, then mix the two with a high-shear dispersing emulsification homogenizer Fully stir for 4 minutes under the condition of 10000r / min to form a binary organic low-temperature nano phase change energy storage material;
[0026] (3) Add the binary organic low-temperature nano phase change energy storage material prepared in step (2) dropwise to the expanded graphite treated in step (1) at normal temperature and pressure to form expande...
Embodiment 2
[0029] (1) Weigh 1.0g of expanded graphite, add ethylene glycol to cover the expanded graphite, ultrasonically treat it at 45HZ for 30min, then heat it in a constant temperature water bath at 70°C for 1h, and finally add deionized water to clean it and put it into the blast After completely drying in a drying oven at 120°C, take it out and let it cool down to room temperature naturally;
[0030] (2) Take by weighing 19.0g n-tetradecane and dodecyl alcohol, wherein the molar mass of n-tetradecane and dodecyl alcohol is 0.737:0.263, add in the beaker, then use high-shear dispersion emulsification homogenizer to mix the two Fully stir for 4 minutes under the condition of 11000r / min to form a binary organic low-temperature nano phase change energy storage material;
[0031] (3) Add the binary organic low-temperature nano phase change energy storage material prepared in step (2) dropwise to the expanded graphite treated in step (1) at normal temperature and pressure to form expande...
Embodiment 3
[0034] (1) Weigh 1.4g of expanded graphite, add ethylene glycol to cover the expanded graphite, ultrasonically treat it at 45HZ for 30min, then heat it in a constant temperature water bath at 70°C for 1h, and finally add deionized water to clean it and put it into the blast After being completely dried in a drying oven at 130°C, take it out and let it cool down to room temperature naturally;
[0035] (2) Take by weighing 18.6g n-tetradecane and dodecyl alcohol, wherein the molar mass of n-tetradecane and dodecyl alcohol is 0.737:0.263, add in the beaker, then mix the two with a high-shear dispersion emulsification homogenizer Fully stir for 4 minutes under the condition of 12000r / min to form a binary organic low-temperature nano phase change energy storage material;
[0036] (3) Add the binary organic low-temperature nano phase change energy storage material prepared in step (2) dropwise to the expanded graphite treated in step (1) at normal temperature and pressure to form ex...
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