Phase change concrete and preparation method thereof

[0072] A mixed metal powder containing 6.538 parts of zinc powder (also containing 0.7264 parts of indium, bismuth, tin metal powder mixed in a mass ratio of 1:1:1) and 0.33 mol of ethyl chloride were dissolved in a mixed solvent of ether and tetrahydrofuran In a dry and airtight environment, the reaction was carried out, and the solvent was removed to obtain a mixture containing diethylzinc. Then 200 parts of graphene oxide was added into water and ultrasonically dispersed for 30 min. Then add the aforementioned diethylzinc-containing mixture to the dispersion, then heat to 100°C and stir for 3.5 hours. After the reaction is complete, add 20 parts of vitamin C and continue to stir and react for 2 hours at 75°C. After the reaction is completed, use Wash with toluene three times, and then dry to constant weight in a vacuum oven at 80°C to obtain a graphene mixture modified with diethylzinc.

[0073] Weigh 15 parts of the graphene mixture containing diethylzinc modification and he

[0075] A mixed metal powder containing 6.538 parts of zinc powder (also containing 0.7264 parts of indium, bismuth, tin metal powder mixed in a mass ratio of 1:1:1) and 0.25 mol of ethyl chloride are dissolved in a mixed solvent of ether and tetrahydrofuran In a dry and airtight environment, the reaction was carried out, and the solvent was removed to obtain a mixture containing diethylzinc. Then 200 parts of graphene oxide was added into water and ultrasonically dispersed for 30 min. Then add the aforementioned diethylzinc-containing mixture to the dispersion, then heat to 100°C and stir for 3.5 hours. After the reaction is complete, add 20 parts of vitamin C and continue to stir and react for 2 hours at 75°C. After the reaction is completed, use Wash with toluene three times, and then dry to constant weight in a vacuum oven at 80°C to obtain a graphene mixture modified with diethylzinc.

[0076] Weigh 15 parts of the graphene mixture containing diethylzinc modification and hea

[0078] A mixed metal powder containing 6.538 parts of zinc powder (also containing 0.7264 parts of indium, bismuth, tin metal powder mixed in a mass ratio of 1:1:1) and 0.20 mol of ethyl chloride are dissolved in a mixed solvent of ether and tetrahydrofuran In a dry and airtight environment, the reaction was carried out, and the solvent was removed to obtain a mixture containing diethylzinc. Then 200 parts of graphene oxide was added into water and ultrasonically dispersed for 30 min. Then add the aforementioned diethylzinc-containing mixture to the dispersion, then heat to 100°C and stir for 3.5 hours. After the reaction is complete, add 20 parts of vitamin C and continue to stir and react for 2 hours at 75°C. After the reaction is completed, use Wash with toluene three times, and then dry to constant weight in a vacuum oven at 80°C to obtain a graphene mixture modified with diethylzinc.

[0079] Weigh 15 parts of the graphene mixture containing diethylzinc modification and hea