Air flow generating device, graphene dispersion, and preparation method thereof
AssigneeTaiwan Textile Research Institute
InventorsTing-Yu Wu, Ting-Yu Chang, Hsin-Chun Li, Bo-Fan Lin
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Abstract
An air flow generating device, a graphene dispersion, and a preparation method thereof are provided. The graphene dispersion is formed by a graphene powder and a processing solvent, wherein the graphene in the graphene dispersion has an average diameter of 0.5 μm to 1 μm, 3 to 5 layers, a solid content of 5% to 50%, and a residue oxygen content less than 1 wt %, and after being left to stand for 12 hours, the graphene dispersion has a distribution concentration increasing from the top section to the bottom section of the storage container, a viscosity of 5000 cps to 8000 cps, and a graphene concentration of 20 wt %.
Claims12
An air flow generating device for preparing a graphene powder, comprising:
- an outer bushing having a chamber, an intake opening, and an outtake opening, wherein the intake opening is connected to the chamber from below and the outtake opening is connected to the chamber from above, and the chamber has a necked portion;
- and
- a rotating awl disposed in the chamber, wherein the rotating awl and the chamber are conformal, the rotating awl and an inner wall of the chamber have a slit spacing in between, the rotating awl comprises a rotating body and a plurality of screw threads, and the plurality of screw threads are distributed on an outer surface of the rotating body from a bottom of the rotating body toward a top of the rotating body in a spiral manner, the rotating body comprises the bottom, the top, and a center located between the bottom and the top, and a diameter of the rotating body is decreased from the bottom to the top, wherein angles of the plurality of screw threads at the top, the center, and the bottom are different,
- when the rotating awl rotates in the chamber, an upward cyclone having a horizontal component is produced via the plurality of screw threads and the slit spacing.
Dependencies are inferred from the claim text.