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Microcapsule preparation device based on microfluidic technology

A microfluidic technology and preparation device technology, which is applied in the field of material preparation devices, can solve the problems of low production efficiency of microcapsules and inability to carry out large-scale production, and achieve the effects of uniform and controllable particle size, simple structure and high efficiency

Active Publication Date: 2021-08-27
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to address the above problems and provide an efficient and simple microcapsule preparation device based on microfluidic technology. The device can simultaneously generate controllable uniform droplets in all directions and heights. Under other specific conditions, microcapsules with a core-shell structure are formed, which greatly improves the preparation efficiency of microcapsules, and solves the problem of low production efficiency and inability to carry out large-scale production of microcapsules prepared by microfluidic methods

Method used

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  • Microcapsule preparation device based on microfluidic technology
  • Microcapsule preparation device based on microfluidic technology
  • Microcapsule preparation device based on microfluidic technology

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0034] Such as Figure 1-7 A microcapsule preparation device based on microfluidic technology shown is mainly composed of an inner pipe 1 , an intermediate pipe 2 , an outer pipe 3 and a lamp tube 4 . The inner pipe 1, the middle pipe 2, and the outer pipe 3 are sleeved sequentially from the inside to the outside, and there are gaps between the inner pipe 1 and the middle pipe 2, and between the middle pipe 2 and the outer pipe 3 for the middle phase liquid and the outer phase liquid respectively. circulation;

[0035] The top of the inner pipe 1 can be connected with the external inner phase liquid input pipe, and the bottom is closed. The inner pipe 1 is provided with a number of liquid outlet holes 11, and the liquid outlet holes 11 are provided with outwardly protruding micro-connecting pipes 12; the micro-connecting pipes 12 can be fixedly connected to the outlet hole 11 by welding.

[0036] The intermediate pipe 2 is provided with a plurality of through holes 21, the t...

Embodiment 2

[0054] Example 2 A preparation method of microcapsules based on microfluidic technology

[0055] Using the microcapsule preparation device based on microfluidic technology in Example 1 to prepare microcapsules based on microfluidic technology, follow the steps below:

[0056] Connect the top of the outer pipeline 3 to the external external phase liquid input pipe, connect the top of the intermediate pipeline 2 to the intermediate phase liquid input pipe, connect the top of the inner pipeline 1 to the internal phase liquid input pipe, turn on the ultraviolet lamp 41, and turn on the external device at the same time Input the external phase, intermediate phase, and internal phase liquid, the internal phase flows out through the micro-connecting tube 12, and form a double droplet in which the intermediate phase wraps the internal phase at the through hole 21 of the intermediate pipeline 2, and the double droplet flows into the external phase in the external pipeline 3 In the proc...

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Abstract

The invention relates to the technical field of material preparation devices, and discloses a microcapsule preparation device based on a microfluidic technology. The devicecomprises an inner pipeline, a middle pipeline, an outer pipeline and a lamp tube which are sequentially sleeved from inside to outside, gaps are reserved between the inner pipeline and the middle pipeline and between the middle pipeline and the outer pipeline for circulation of the middle-phase liquid and the outer-phase liquid; the top of the inner pipeline can be connected with an external internal phase liquid input pipe, the bottom of the inner pipeline is closed, a plurality of liquid outlet holes are formed in the inner pipeline, and micro connecting pipes protruding outwards are arranged on the liquid outlet holes; a plurality of through holes are formed in the middle pipeline and correspond to the miniature connecting pipes one to one, outlets of the miniature connecting pipes extend into the through holes, the top of the middle pipeline can be connected with an external intermediate phase liquid input pipe, and the bottom of the middle pipeline is closed; and an ultraviolet lamp is arranged in the lamp tube, the lamp tube is made of a material capable of transmitting ultraviolet light, the top of the lamp tube is fixedly connected with the bottom of the middle pipeline, and the lamp tube is also arranged in the outer tube.

Description

technical field [0001] The invention relates to the technical field of material preparation devices, in particular to an efficient and simple microcapsule preparation device based on microfluidic technology. Background technique [0002] Microcapsules have the functions of improving the physical properties of substances, improving the stability of substances, controlling release and shielding odor, so they are widely used in food, medicine and other industrial fields. For example, in inertial confinement fusion experiments, hollow microspheres with large diameter, thin wall, low surface roughness, uniform spherical shell composition, uniform wall thickness and high sphericity are required as target pellets; food and pharmaceutical industries need to be able to encapsulate large doses of core materials Large-size capsules; the tobacco industry needs to produce brittle pop-up beads with larger particle sizes for flavoring and flavoring. The wide application of microcapsules h...

Claims

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Application Information

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IPC IPC(8): B01J13/02B01L3/00
CPCB01J13/02B01L3/5027
Inventor 陈展珠王智彬文一凡陈颖
Owner GUANGDONG UNIV OF TECH