A graphene conductive coating for protective films
A conductive coating and graphene technology, applied in conductive coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor electrical conductivity of protective films, achieve excellent storage stability, improved electrical conductivity, and convenient construction
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Embodiment 1
[0058] a) Preparation of modified graphene-polyaniline composite
[0059] Put the peanut shells in ethanol and deionized water for at least 7 minutes, and then dry them, then mix them according to the mass ratio of peanut shells, melamine and 1.0mol / L NaOH solution at a ratio of 1.2:1.2:50, and use a ceramic ball mill to grind them into a uniform Slurry, the fineness of the uniform slurry is 30 μm; the quality of the peanut shell is 2.0 g; dilute to 2 times with water, and fully stir; after 24 hours, discard the bottom sediment to obtain a biomass dispersion;
[0060] Mix the biomass dispersion liquid with the graphene oxide aqueous solution to obtain a reaction liquid, control the biomass content in the reaction liquid to 3.0 mg / mL, and the graphene oxide content in the reaction liquid to 1.5 mg / mL; After heating for 16 hours, the modified graphene dispersion is obtained, and the graphene surface is loaded with nano-carbon particles, so that the graphene is well dispersed; th...
Embodiment 2
[0068] a) Preparation of modified graphene-polyaniline composite
[0069] Put the peanut shells in ethanol and deionized water for at least 7 minutes, and then dry them, then mix them according to the mass ratio of peanut shells, melamine and 0.8mol / L NaOH solution at a ratio of 1.0:1.5:50, and use a ceramic ball mill to grind them into a uniform Slurry, the fineness of the uniform slurry is 30 μm; the quality of the peanut shell is 2.0 g; dilute to 2 times with water, and fully stir; after 22 hours, discard the bottom sediment to obtain a biomass dispersion;
[0070] Mix the biomass dispersion liquid with the graphene oxide aqueous solution to obtain a reaction liquid, control the biomass content in the reaction liquid to 3.5 mg / mL, and the graphene oxide content in the reaction liquid to 1.0 mg / mL; After heating for 15 hours, the modified graphene dispersion is obtained, and the graphene surface is loaded with nano-carbon particles, so that the graphene has good dispersion; ...
Embodiment 3
[0078] a) Preparation of modified graphene-polyaniline composite
[0079] Place the peanut shells in ethanol and deionized water for at least 7 minutes, then ultrasonically clean them for at least 7 minutes, then dry them, then mix them according to the mass ratio of peanut shells, melamine and 1.3mol / L NaOH solution at a ratio of 1.3:1.3:50, and use a ceramic ball mill to grind them into a uniform Slurry, the fineness of the uniform slurry is 30 μm; the quality of the peanut shell is 2.0 g; it is diluted to 3 times with water, and fully stirred; after 23 hours, discard the bottom sediment to obtain a biomass dispersion;
[0080] Mix the biomass dispersion liquid with the graphene oxide aqueous solution to obtain a reaction liquid, control the biomass content in the reaction liquid to 3.0 mg / mL, and the graphene oxide content in the reaction liquid to 0.5 mg / mL; After heating for 18 hours, the modified graphene dispersion is obtained, and the surface of the graphene is loaded ...
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