Hydrogel filled with nitrogen-doped carbon nanotubes and preparation method of hydrogel
A nitrogen-doped carbon and nanotube technology is applied in the field of hydrogel filled with nitrogen-doped carbon nanotubes and its rapid preparation, which can solve the problems of cost, harmful potassium persulfate, multiple raw materials, etc., and improve the viscosity of the liquid. , The effect of promoting the degree of cross-linking and good dispersibility
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[0026] A method for preparing a hydrogel filled with nitrogen-doped carbon nanotubes, comprising the following steps: mixing a hydrogen bond acceptor compound, a hydrogen bond donor compound and a crosslinking agent, and then stirring in an oil bath at 70-100°C until A transparent and clear liquid to obtain a deep eutectic solvent liquid; add the initiator and nitrogen-doped carbon nanotubes successively to the deep eutectic solvent liquid at a temperature above 35°C, stir evenly to form a mixture solution, and then mix the formed mixture The solution is transferred to a tubular reactor, and a heat source is used to heat the reactor to initiate the polymerization reaction. After the thermal initiation reaction begins, the heat source is removed until the liquid in the entire reactor is completely converted into a polymer gel; the polymer gel is first used Soaking and washing in distilled water, and then freeze-drying, the target nitrogen-doped carbon nanotube-filled hydrogel is...
Embodiment 1
[0038] Example 1 (FP1)
[0039] (1) Mix 4.265g of acrylamide, 4.189g of choline chloride, and 0.085g of N,N-methylenebisacrylamide and stir in an oil bath at 70°C until a transparent and clear liquid is formed, then let it cool down to room temperature, Obtain room temperature deep eutectic solvent liquid;
[0040] (2) Add 0.042g of potassium persulfate and 0.017g of nitrogen-doped carbon nanotubes to the room temperature deep eutectic solvent liquid obtained in step (1) successively to form a mixture solution, and then transfer the formed mixture solution into a test tube, Use an electric soldering iron to heat the upper end of the reactor, so that the initiator is heated and decomposed to initiate the reaction. After the thermal initiation reaction begins, remove the heat source until the raw materials in the entire reactor are completely converted into polymer gels;
[0041] (3) Soak and wash the polymer gel obtained in step (2) with distilled water to remove choline chlor...
Embodiment 3
[0048] Example 3 (FP3)
[0049] (1) Mix 4.265g of acrylamide, 4.189g of choline chloride, and 0.085g of N,N-methylenebisacrylamide and stir in an oil bath at 70°C until a transparent and clear liquid is formed, then let it cool down to room temperature, Obtain room temperature deep eutectic solvent liquid;
[0050] (2) Add 0.042g potassium persulfate and 0.085g nitrogen-doped carbon nanotubes to the room temperature deep eutectic solvent liquid obtained in step (1) successively to form a mixture solution, and then transfer the formed mixture solution into the test tube, Use an electric soldering iron to heat the upper end of the reactor, so that the initiator is heated and decomposed to initiate the reaction. After the thermal initiation reaction begins, remove the heat source until the raw materials in the entire reactor are completely converted into polymer gels;
[0051] (3) Soak and wash the polymer gel obtained in step (2) with distilled water to remove choline chloride,...
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