Device, method and application for preparing crescent-shaped ceramic particles based on microfluidic chip
A technology of microfluidic chips and ceramic particles, applied in chemical instruments and methods, chemical/physical/physicochemical processes of energy application, gel preparation, etc., can solve limitations and other problems
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preparation example Construction
[0037] In a typical implementation of the present application, the preparation method comprises the following steps:
[0038] Step (1) passing the outer phase fluid into the second dispensing needle, then entering the outer glass tube, and when the outer phase fluid flows out of its outlet, passing the inner phase fluid through the first dispensing needle and the inner glass tube;
[0039] Step (2) Due to the shear force of the outer phase fluid, the inner phase fluid forms droplets covered by the outer phase fluid at the outlet of the inner phase glass tube, and the droplets flow through the ultraviolet exposure area, and flow into the outer phase fluid after exposure and curing collection hose;
[0040]Step (3) After the liquid droplets are collected, they are cleaned, the outer phase fluid and the uncured inner phase solution are removed respectively, and the obtained crescent-shaped microparticles are placed in an aqueous solution of ammonium persulfate for further exchang...
Embodiment 1
[0058] Such as figure 1 As shown, a device for preparing crescent-shaped ceramic particles based on a microfluidic chip, including: a base plate 1, a first dispensing needle 2, an inner glass tube 3, a second dispensing needle 4, an outer glass tube 5, and an ultraviolet The lamp head 6 and the collection hose 7; the first dispensing needle 2 and the second dispensing needle 4 are fixed side by side on the bottom plate 1, and a port of the internal phase glass tube 3 is connected to the cavity of the first dispensing needle 2 One port of the outer phase glass tube 5 communicates with the cavity of the second dispensing needle 4, and the other port of the inner phase glass tube 3 passes through the cavity of the second dispensing needle 4 and then extends into the outer phase glass In the tube 5; the ultraviolet lamp head 6 is placed directly above the outer glass tube 5 and can be connected to the ultraviolet light source, and the other port of the outer glass tube 5 is connec...
Embodiment 2
[0064] A device for preparing crescent-shaped ceramic particles based on a microfluidic chip, the same as in Example 1, the difference is that it also includes syringes for injecting the inner phase fluid and the outer phase fluid respectively, the first dispensing needle 2, the second The dispensing needles 4 are respectively connected with a syringe, and the flow pumps are used to drive the respective syringes, so as to inject the internal phase fluid and the external phase fluid into the first dispensing needle 2 and the second dispensing needle 4 respectively.
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