A kind of preparation method of porous metal/nano-carbon phase composite material with multilayer structure
A technology for porous metal and composite materials, which is applied in the field of preparation of porous metal/nano-carbon phase composite materials, can solve the problems of non-wetting, inability to disperse uniformly, and inability to synthesize composite materials, and achieves strong interface bonding and simplified process. Effect
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Embodiment 1
[0041] (1) Carbon nanotube pretreatment
[0042] Select carbon nanotubes with an average diameter of 30-80 nm and a length of 5-15 µm as raw materials for pretreatment, that is, carbon nanotubes are heated to 180 °C and kept for 5 hours to remove some impurities and water.
[0043] (2) Preparation of carbon nanotube dispersion:
[0044] Put 1.5 g of carbon nanotubes pretreated in step (1) into 300 ml of hydrogen peroxide solution with a concentration of 6% by mass, and soak for 5 hours; The speed is 4000 rev / min, cooled to room temperature, and after standing still for 20 hours, the carbon nanotube mixture was treated with an ultrasonic cleaner for 30 minutes at a frequency of 45kHZ, cooled to room temperature, and after standing still for 20 hours, the carbon nanotube mixture was Mechanical mixer 1500 rev / min process 1 hour, cool to room temperature, obtain carbon nanotube dispersion liquid after standing still for 20 hours, see Figure 4 .
[0045] (3) Porous metal surfac...
Embodiment 2
[0062] (1) Graphene pretreatment:
[0063] Graphene with a lateral size of 30-80 µm and a vertical size of 20-50 nm was selected as the raw material for pretreatment, that is, the graphene was heated to 200 °C and kept for 5 hours to remove some impurities and moisture.
[0064] (2) Preparation of graphene dispersion:
[0065] Put 1g of graphene into the mixture of 0.06g of surfactant SDBS (sodium dodecylbenzenesulfonate) and 0.2g of analytically pure Tween-80, and soak for 5 hours to obtain the graphene mixture; the graphene mixture Dispersed by a dispersing emulsifier for 30 minutes, with a rotation speed of 4000 rpm, cooled to room temperature, and left standing still for 20 hours, the graphene mixture was treated by an ultrasonic cleaner for 30 minutes, with a frequency of 50 kHz, cooled to room temperature, and kept standing still for 20 hours Afterwards, the graphene mixture was processed by a mechanical stirrer at 1500 rpm for 1 hour, cooled to room temperature, and le...
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