A device for the preparation of two-dimensional nanomaterials by hypergravity coupling
A two-dimensional nanomaterial, supergravity technology, applied in nanocarbon, carbon compounds, graphene and other directions, can solve the problems of high impurity content, difficult to separate and remove, etc.
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Embodiment 1
[0038] Such as figure 1 As shown, a device for preparing two-dimensional nanomaterials coupled with high gravity includes a cooling cycle system composed of a refrigeration cycle pump 7 and a tube-and-tube heat exchanger 8, a high-gravity cycle stripping system, and a high-gravity cycle concentration system. The circulation stripping system comprises the hypergravity coupling machine I 11 which communicates with the first metering tank 10, the first magnetic pump 9 and the cooling circulation system through pipelines; Two magnetic pumps 14 and a conductivity meter 15 are connected to the supergravity coupling machine II 12.
[0039] Such as figure 2 As shown, both the hypergravity coupling machine I and the hypergravity coupling machine II have a turntable 18 with a streamlined structure and a motor 16 for generating power. The turntable includes a hypergravity separation unit 5 inside and a hypergravity mixing unit 6 outside. The supergravity separation unit is a U-shaped...
Embodiment 2
[0054] During the preparation of graphene, the highest supergravity field levels for one rotation of the separation units of the supergravity coupling machines I and II are still 3170 g and 4733 g, respectively. The difference between Embodiment 2 and Embodiment 1 is that the flow section of the secondary rotating flow channel in the supergravity coupling machine I is a circle with a diameter of 2 mm, and the radial length is 120 mm. The secondary rotating flow channel in the high gravity coupling machine I The radial dimension of is 1.5 times the radial dimension of the secondary rotating flow channel in the supergravity coupling machine II. The flow ratio of graphite concentrated slurry and low-concentration graphene solution is controlled at 0.5:1; the axial average linear velocity of graphite concentrated slurry reaches 65 m / s. During the stripping process, the temperature was controlled at -4°C; during the concentration process, the temperature was controlled at 1°C. In ...
Embodiment 3
[0056]During the preparation of graphene, the highest supergravity field levels for one rotation of the separation units of the supergravity coupling machines I and II are still 3170 g and 4733 g, respectively. The difference between embodiment 3 and embodiment 1 is that: the flow section of the secondary rotary flow channel in the supergravity coupling machine I is a circle with a diameter of 6mm, and the radial length is 120mm, and the secondary rotary flow channel in the high gravity coupling machine I The radial dimension is twice the radial dimension of the secondary rotating flow channel in the supergravity coupling machine II; the flow ratio of the graphite thick slurry and the low concentration graphene solution is controlled at 2:1; the axial direction of the graphene slurry The average line speed is 65 m / s. During the stripping process, the temperature was controlled at -3°C; during the concentration process, the temperature was controlled at 2°C. In step (1), the c...
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