A kind of preparation method of graphene oxide and silver nanowire assembled ternary elastic hydrogel
A silver nanowire and hydrogel technology, applied in the field of nanomaterials, can solve the problems of limited practical application, limited mechanical strength, low stretchability, etc., and achieve good application prospects, strengthen mechanical strength, toughness and extensibility Effect
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Embodiment 1
[0035] 1. Prepare 1 mL of graphene oxide dispersion with a concentration of 1 mg / mL, add 0.17 mL of 6 mg / mL graphene oxide into a glass vial, and ultrasonicate for 30 minutes to obtain a graphene oxide nanomaterial dispersion.
[0036] 2. Put 4 mL of the synthesized silver nanowires into a beaker, and add the uniform dispersion obtained in step 1 into it. Ultrasound for 1 min to fully mix the graphene oxide and silver nanowires to form a uniform dispersion. Draw a certain amount of dispersion liquid, freeze and shape it at -60°C, and dry it to obtain graphene oxide and silver nanowire airgel.
[0037] 3. Take out the airgel obtained in step 2, add 1g of hydrophilic monomer acrylamide, 2mg of cross-linking agent, 20mg of initiator, then add 5mL of water, put it in a 60°C oven for 24h, and obtain graphene oxide and silver nanowire hydrogel.
Embodiment 2
[0039] 1. Prepare 1 mL of graphene oxide dispersion with a concentration of 2 mg / mL, add 0.33 mL of 6 mg / mL graphene oxide into a glass vial, and ultrasonicate for 30 minutes to obtain a graphene oxide nanomaterial dispersion.
[0040] 2. Put 4 mL of the synthesized silver nanowires into a beaker, and add the uniform dispersion obtained in step 1 into it. Ultrasound for 1 min to fully mix the graphene oxide and silver nanowires to form a uniform dispersion. Draw a certain amount of dispersion liquid, freeze and shape it at -60°C, and dry it to obtain graphene oxide and silver nanowire airgel.
[0041] 3. Take out the airgel obtained in step 2, add 1g of hydrophilic monomer acrylamide, 2mg of cross-linking agent, 20mg of initiator, then add 5mL of water, put it in a 60°C oven for 24h, and obtain graphene oxide and silver nanowire hydrogel.
Embodiment 3
[0043] 1. Prepare 1 mL of a graphene oxide dispersion with a concentration of 3 mg / mL, add 0.5 ml of 6 mg / mL graphene oxide into a glass vial, and ultrasonicate for 30 minutes to obtain a graphene oxide nanomaterial dispersion.
[0044] 2. Take 4 ml of the synthesized silver nanowires and put them into a beaker, and add the uniform dispersion obtained in step 1 into it. Sonicate for 1 minute to fully mix the graphene oxide and silver nanowires to form a uniform dispersion. Draw a certain amount of dispersion liquid, freeze and shape it at minus 60 degrees Celsius, and dry it to obtain graphene oxide and silver nanowire airgel.
[0045] 3. Take out the airgel obtained in step 2, add 1 gram of hydrophilic monomer acrylamide, 2 mg of cross-linking agent, 20 mg of initiator, add 5 ml of water, and put it in an oven at 60 degrees Celsius for 24 hours to obtain Graphene oxide and silver nanowire hydrogels.
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