Graphene composite conductive ink as well as preparation method and application thereof
A graphene composite, conductive ink technology, applied in the field of graphene, can solve the problems of affecting the conductivity, reducing the reflectivity of metal to the label, weak electromagnetic signal, etc.
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[0053] The present invention also provides the preparation method of the above graphene composite conductive ink, including the steps of:
[0054] The graphene, a dispersant, aid is added to the solvent, and the homogeneous treatment is obtained.
[0055] The carbon black nanoparticles wrapped in the metal were mixed with the graphene slurry, and the mechanical dispersed at the rotational speed of 2000 to 5000 rpm / min, it was obtained.
[0056] The present invention is not particularly limited to the dispersion treatment of the graphene, a dispersant, aid, and the solvent is not particularly limited, and a conventional dispersion method in the art can be employed, for example: stirring dispersion, ultrasonic dispersion, mechanical dispersion, etc. Can.
[0057] The invention may not be specifically limited for the above-mentioned homogeneous treatment, and a method of homogenizing conventionally conventionally in the art can be employed, for example, may include: grinding, etc.,...
Embodiment 1
[0082] This embodiment provides a graphene composite conductive ink and a preparation method thereof.
[0083] The specific steps include:
[0084] The desired 40 g of graphene nanofina, 2 g of polyethylene glycol, 1 g polyvinylpyrrolidone, 400 gNMP was stirred; the dispersed mixture was treated with a three-roll grinding and homogeneous treatment to obtain a grapse olem.
[0085] 10 g of copper was wrapped in carbon black nanoparticles, added to 50 g of graphene slurry, and the rotational speed was 2000 rpm / min, and the mechanical dispersion was taken for 3 hours, and the graphene composite conductive ink was obtained.
[0086] Among them, the preparation of copper wrapped carbon black nanoparticles was prepared: 20 g / L copper sulfate, 10 g / L sulfate, 40 g / L tartaricate sodium potassium tartrate, mixed with plating solution. 10 g of carbon black, add 50 mL of deionized water to perform ultrasonic dispersion. Then, the dispersed carbon black was added to the plating soluti...
Embodiment 2
[0088]This embodiment provides a graphene composite conductive ink and a preparation method thereof.
[0089] The specific steps include:
[0090] See figure 1 with figure 2 The 40 g of graphene nanofina, 4G methylcellulose, 2 g of polyvinylpyrrolidone, 400 g of ethanol is added in sequentially, and the dispersed mixture is treated with a graphite olema.
[0091] 10 g of nickel is wrapped in carbon black nanoparticles, added to 50 g of graphene slurry, and the rotational speed was 3000 rpm / min, and the mechanical dispersion was taken for 5 hours, and graphene composite conductive ink was obtained.
[0092] Among them, the preparation method of nickel-wrapped carbon black nanoparticles is as follows: 25 g / L nickel sulfate, 20 g / L citrate, 15 g / l, 25 ml / L lactic acid, mixed with sodium acetate, and mixed into a plating solution. 10 g of carbon black, add 30 ml of deionized water to perform ultrasonic dispersion. Then, the dispersed carbon black was added to the plating s...
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Abstract
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