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Microcapsule droplet generator and preparation method thereof

A droplet generator and microcapsule technology, applied in the field of microfluidics, can solve the problems of uncontrollable package volume and low capsule yield

Inactive Publication Date: 2015-03-04
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The yield of capsules produced by traditional microcapsule production technology is low, and the amount of packaging is uncontrollable

Method used

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  • Microcapsule droplet generator and preparation method thereof
  • Microcapsule droplet generator and preparation method thereof
  • Microcapsule droplet generator and preparation method thereof

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Experimental program
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Embodiment 1

[0020] Microcapsule droplet generator of the present invention, as figure 1 As shown, it is mainly composed of three capillary glass tubes (1), (2), (3) and two stainless steel high-pressure T-shaped tees (4), (5). T-shaped tee (4) and (5) coaxially fix three capillary glass tubes (1), (2) and (3), with silicone tubes (11), (12) seal.

[0021] The microcapsule droplet generator is prepared by the following method: Put a certain length of silica gel tube (8) on both ends of a thicker capillary glass tube (1) with a diameter of 0.7-1.5mm, Install the high-pressure T-shaped tee (4) and (5), tighten the seal, and the main channel of the high-pressure T-shaped tee is coaxial with the capillary glass tube; respectively connect two thinner capillary glass tubes (2 ) and one end of (3) are processed into constriction ports (9) and (10), and then two capillary glass tube constriction ports (9) and (10) are respectively connected from two high-pressure T-shaped tees (4) and ( The othe...

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Abstract

The invention discloses a microcapsule droplet generator which is mainly formed by connecting three capillary glass tubes (1), (2) and (3) and two high-pressure T-shaped stainless steel tee joints (4) and (5), wherein the connection refers to that the three capillary glass tubes (1), (2) and (3) are coaxially fixed by virtue of the two high-pressure T-shaped stainless steel tee joints (4) and (5); and the capillary glass tubes are sealed by using silicone tubes (11) and (12). According to the micro-fluidic structure for producing microcapsules constructed based on the capillary glass tubes and the T-shaped high-pressure tee joints, a focused flow is constructed to produce microcapsules by virtue of the three capillary glass tubes of different diameters, the T-shaped joints have the fixing and sealing effects, and a micro-fluidic inlet channel is formed. According to the fixing effects of the T-shaped joints, the capillary tubes of small diameters are coaxially fixed in the capillary tubes of large diameters and are in a single-arm fixing state. The micro-fluidic droplet generator is constructed by utilizing conventional commercial products such as the capillary glass tubes and the T-shaped tee joints, and the microcapsules are produced.

Description

technical field [0001] The invention belongs to the field of microfluid technology, in particular to a microcapsule droplet generator and its preparation method and application. Background technique [0002] Paraffin has good thermophysical properties and is widely used in the field of phase change energy storage. In order to solve the leakage problem of liquid paraffin during the phase change process, the phase change material is usually wrapped in a material with a higher melting point by using microcapsule technology. The yield of capsules produced by traditional microcapsule production technology is low, and the amount of packaging is uncontrollable. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to prepare phase-change microcapsules by using microfluidic droplet generation technology. The material used in the invention is commercialized, which is convenient for large-scale pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/02
CPCB01J13/02B01J13/025
Inventor 焦冬生何立群罗昭峰
Owner UNIV OF SCI & TECH OF CHINA