A kind of preparation method of graphene copper composite wire
A composite wire and graphene technology, applied in conductive materials, conductive materials, metal/alloy conductors, etc., can solve the problems of complex atmosphere control and high preparation cost, and achieve the effects of shortening preparation time, simple method and short preparation process
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Embodiment 1
[0032] The preparation method of graphene copper composite wire in the present embodiment comprises the following steps:
[0033] Step 1, dissolving graphene oxide as a precursor in a mixed solvent, adding polyvinylpyrrolidone or N-methylpyrrolidone as a stabilizer, and stirring and dissolving under ultrasonic vibration conditions to obtain a precursor solution; the polyvinylpyrrolidone or The amount of N-methylpyrrolidone added is 1% of the mass of graphene oxide; the concentration of graphene oxide in the precursor solution is 2.5 mg / mL; the mixed solvent is mixed with water and ethanol at a volume ratio of 1:10 Made; the power of the ultrasonic oscillation is 550W;
[0034] Step 2, the precursor solution described in step 1 is applied to the copper strip by dipping and pulling method to obtain a copper strip covered with a graphene oxide coating, and then the copper strip coated with a graphene oxide coating is placed on the copper strip The temperature is 135°C, and the d...
Embodiment 2
[0043] The preparation method of graphene copper composite wire in the present embodiment comprises the following steps:
[0044] Step 1, dissolving graphene oxide as a precursor in a mixed solvent, adding polyvinylpyrrolidone or N-methylpyrrolidone as a stabilizer, and stirring and dissolving under ultrasonic vibration conditions to obtain a precursor solution; the polyvinylpyrrolidone or The amount of N-methylpyrrolidone added is 1% of the mass of graphene oxide; the concentration of graphene oxide in the precursor solution is 0.5 mg / mL; the mixed solvent is mixed with water and ethanol at a volume ratio of 1:10 Made; the power of the ultrasonic oscillation is 100W;
[0045] Step 2, the precursor solution described in step 1 is applied to the copper strip by dipping and pulling method to obtain a copper strip covered with a graphene oxide coating, and then the copper strip coated with a graphene oxide coating is placed on the copper strip The drying treatment is carried out...
Embodiment 3
[0054] The preparation method of graphene copper composite wire in the present embodiment comprises the following steps:
[0055] Step 1, dissolving graphene oxide as a precursor in a mixed solvent, adding polyvinylpyrrolidone or N-methylpyrrolidone as a stabilizer, and stirring and dissolving under ultrasonic vibration conditions to obtain a precursor solution; the polyvinylpyrrolidone or The amount of N-methylpyrrolidone added is 1% of the graphene oxide mass; the concentration of graphene oxide in the precursor solution is 5 mg / mL; the mixed solvent is composed of dimethylformamide and ethanol in a volume ratio of 1 : 10 mixed; the power of the ultrasonic oscillation is 1000W;
[0056] Step 2, the precursor solution described in step 1 is applied to the copper strip by dipping and pulling method to obtain a copper strip covered with a graphene oxide coating, and then the copper strip coated with a graphene oxide coating is placed on the copper strip The drying treatment is...
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