Preparation method of multi-dimensional carbon material composite reinforced copper-based material
A composite reinforcement, carbon material technology, applied in the fields of nanotechnology, carbon compounds, chemical instruments and methods for materials and surface science, can solve the problems of strength enhancement elongation and electrical conductivity of copper matrix composites, which are difficult to achieve, Achieve the effect of good bonding strength, increased strength and elongation, and increased electrical conductivity
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[0031] Example 1
[0032] A preparation method of a multi-dimensional carbon material composite reinforced copper-based material, the specific steps are:
[0033] (1) Acid cracking: 500 mg of nitrogen-doped carbon nanotubes and 250 mL of concentrated nitric acid with a mass fraction of 68% were uniformly mixed in a 1 L three-necked round bottom flask, heated to 140° C. and stirred and refluxed for 48 hours;
[0034] (2) alkali neutralization: the reflux liquid of step (1) is neutralized to neutrality with sodium hydroxide in ice bath;
[0035] (3) dialysis: the dispersion liquid after neutralization in step (2) is dialyzed in ultrapure water with a 500Da dialysis bag for 5 days;
[0036] (4) Drying: the dispersion liquid in the dialysis bag in step (3) was rotary evaporated at 60°C to a volume of about 50 mL, and then freeze-dried to obtain nitrogen-doped carbon nanotube-graphene-graphene quantum dot powder. The rotary evaporation process continued. Vacuuming to improve the ...
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[0042] Example 2
[0043] A preparation method of a multi-dimensional carbon material composite reinforced copper-based material, the specific steps are:
[0044] (1) Acid cracking: 250 mg of graphitized carbon nanotubes and 250 mL of concentrated nitric acid with a mass fraction of 68% were uniformly mixed in a 1 L three-necked round bottom flask, heated to 140° C. and stirred for 48 h under reflux;
[0045] (2) alkali neutralization: the reflux liquid of step (1) is neutralized to neutrality with potassium hydroxide in a water bath;
[0046] (3) dialysis: the dispersion liquid after neutralization in step (2) is dialyzed in ultrapure water for 4 days with a dialysis bag of 1000 Da;
[0047] (4) Drying: the dispersion liquid in the dialysis bag of step (3) is rotary evaporated at 70°C to a volume of about 50 mL, freeze-dried to obtain graphitized carbon nanotube-graphene-graphene quantum dot powder, and the rotary evaporation process continues to vacuumize , to improve the ...
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[0051] Example 3
[0052] A preparation method of a multi-dimensional carbon material composite reinforced copper-based material, the specific steps are:
[0053] (1) Acid cracking: 1000 mg of industrialized carbon nanotubes and 250 mL of concentrated nitric acid with a mass fraction of 68% were uniformly mixed in a 1 L three-necked round bottom flask, heated to 100° C. and stirred for 96 h under reflux;
[0054] (2) alkali neutralization: the reflux liquid of step (1) is neutralized to neutrality with the potassium hydroxide solution of concentration 5mol / L in ice bath;
[0055] (3) dialysis: the dispersion liquid after neutralization in step (2) is dialyzed in ultrapure water for 6 days with a dialysis bag of 3500 Da;
[0056] (4) Drying: the dispersion liquid in the dialysis bag of step (3) was rotary evaporated at 80°C to about 50 mL, freeze-dried to obtain industrialized carbon nanotube-graphene-graphene quantum dot powder, and the rotary evaporation process continued to...
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