Palladium-free chemical copper-plating method on graphite nanosheet surface
A technology of nano-graphite microflakes and electroless copper plating, which is applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problems of expensive palladium catalyst, low deposition rate of copper plating, low stability of plating solution, etc. problems, to achieve good mechanical properties, low equipment requirements, and excellent electrical conductivity
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[0034] Example 1:
[0035] The first step: Dispersion treatment: Weigh 0.1g of nano-graphite microplates and disperse it in 50ml of absolute ethanol for 15 minutes, and then filter to obtain dispersed nano-graphite microplates;
[0036] Step 2: Coarse treatment: Put the graphite nanoplatelets obtained in the first step into 100ml of 20g / L NaOH solution, sonicate at 35°C for 30 minutes, then filter, and wash with deionized water until the filtrate is medium Sex
[0037] The third step: surface hydroxylation treatment: put the graphite nano flakes after the second step roughening treatment into 50ml of hydrogen peroxide with a concentration of 40g / L and ammonia solution with a concentration of 60g / L, and continue stirring. The reaction temperature is 85°C, the reaction time is 50 minutes, then filter, wash with deionized water until the filtrate is neutral, and obtain graphite nanoplatelets with a large number of hydroxyl groups on the surface;
[0038] The fourth step: activation trea...
Example Embodiment
[0045] Example 2:
[0046] The first step: Dispersion treatment: Weigh 0.1g of nano-graphite microplates and disperse it in 50ml of absolute ethanol for 15 minutes, and then filter to obtain dispersed nano-graphite microplates;
[0047] Step 2: Coarse treatment: Put the graphite nanoplatelets obtained in the first step into 100ml of 20g / L NaOH solution, sonicate at 35°C for 30 minutes, then filter, and wash with deionized water until the filtrate is medium Sex
[0048] The third step: surface hydroxylation treatment: the graphite nano flakes after the second step roughening treatment are put into 50ml of hydrogen peroxide with a concentration of 40g / L and ammonia solution with a concentration of 80g / L, and the reaction temperature is 85°C, the reaction time is 50 minutes, then filter, wash with deionized water until the filtrate is neutral, and obtain graphite nanoplatelets with a large number of hydroxyl groups on the surface;
[0049] The fourth step: activation treatment: weigh 0....
Example Embodiment
[0056] Example 3:
[0057] Step 1: Dispersion treatment: Weigh 0.2g of graphite nanoplatelets, disperse them in 100ml of absolute ethanol for 20 minutes, and then filter to obtain dispersed graphite nanoplatelets;
[0058] Step 2: Coarse treatment: Put the graphite nanoplatelets obtained in the first step into 200ml of 20g / L NaOH solution, sonicate at 35°C for 35 minutes, then filter and wash with deionized water until the filtrate is medium Sex
[0059] The third step: surface hydroxylation treatment: put the graphite nano flakes after the second step roughening treatment into 100ml of hydrogen peroxide with a concentration of 40g / L and ammonia solution with a concentration of 60g / L, and continue stirring. The reaction temperature is 85°C, the reaction time is 50 minutes, then filter, wash with deionized water until the filtrate is neutral, and obtain graphite nanoplatelets with a large number of hydroxyl groups on the surface;
[0060] The fourth step: activation treatment: weigh 0...
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