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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

Active Publication Date: 2021-07-06
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The microfluidic method of droplet template combined with the process of inner gel and outer gel was applied to prepare spherical ceramic microparticles; another microfluidic molding method - fluid lithography molding, was applied to produce non-spherical ceramic microparticles. particles, but the inventors have found that the shape of the ceramic microparticles prepared by the above preparation method is mostly two-dimensional stretched shape, and most of the materials are limited to silicon oxide; A controlled method can prepare non-spherical ceramic microparticles with three-dimensional structural characteristics

Method used

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  • Device, method and application for preparing crescent-shaped ceramic particles based on microfluidic chip
  • Device, method and application for preparing crescent-shaped ceramic particles based on microfluidic chip
  • Device, method and application for preparing crescent-shaped ceramic particles based on microfluidic chip

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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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Abstract

The invention relates to a device, method and application for preparing crescent-shaped ceramic particles based on a microfluidic chip. tube; the first dispensing needle and the second dispensing needle are fixed side by side on the bottom plate, one port of the inner phase glass tube communicates with the cavity of the first dispensing needle, one port of the outer phase glass tube connects with the second dispensing needle The cavity is connected, and the other port of the inner glass tube passes through the cavity of the second dispensing needle and then extends into the outer glass tube; the ultraviolet lamp head is placed above the outer glass tube, and the other port of the outer glass tube is connected to the collection soft The tube is fixedly connected and communicated with the inner space of the collecting hose, and the device and method of the present invention can prepare crescent-shaped ceramic particles.

Description

technical field [0001] The invention relates to the technical field of ceramic microparticle preparation, in particular to a device, method and application for preparing crescent-shaped ceramic particles based on a microfluidic chip. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Ceramic materials have good high temperature resistance, wear resistance, and chemical corrosion resistance, and excellent mechanical properties make them a substitute for various metals or alloys in the industrial field. Ceramic microparticles not only have the general properties of ceramic materials, but also conform to the development trend of miniaturization and precision of parts and components. With the development of applications in abrasives, sensors, electromagnetic components, biopharmaceuticals, nuclear fuel elements, and micro-electromechanical system micro-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/111C04B35/622C04B35/626C04B35/628C04B35/634B01J19/12B01J19/00B01J13/00
CPCB01J13/0052B01J13/0056B01J13/0065B01J19/0093B01J19/123C04B35/1115C04B35/622C04B35/6263C04B35/62695C04B35/62802C04B35/62886C04B35/63444C04B35/63448C04B2235/6562C04B2235/6567C04B2235/94C04B2235/95
Inventor 满佳周晨晨满录明夏荷李剑峰
Owner SHANDONG UNIV
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