Micro-reaction channel structure, micro-reactor based on micro-reaction channel structure and nano material synthesis system

A technology of micro-reaction channels and micro-reactors, applied in chemical instruments and methods, mixers, transportation and packaging, etc., can solve problems such as poor operability and long reaction distance, and achieve reduced dosage, enhanced mixing degree, and flow field The effect of complex and changeable structure

Active Publication Date: 2022-04-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of micro-reaction channel structure and based on it micro-reactor and nano material synthetic system, use To solve the shortcomings of the existing microchannel technology, such as long reaction distance and poor operability, and use it as a new system for the synthesis of nanomaterials

Method used

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  • Micro-reaction channel structure, micro-reactor based on micro-reaction channel structure and nano material synthesis system
  • Micro-reaction channel structure, micro-reactor based on micro-reaction channel structure and nano material synthesis system
  • Micro-reaction channel structure, micro-reactor based on micro-reaction channel structure and nano material synthesis system

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Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a micro-reaction channel structure includes a substrate 1 made of a glass sheet, a linear microchannel 2 with a characteristic size of 0.5 mm made of polydimethylsiloxane (PDMS), and a protruding inner wall of the microchannel 2 Four spiked microstructures 3, the spiked microstructures 3 are composed of two spikes gathered at the root, the spikes spread out in the circumferential direction, the opening and closing angle α of the spikes is 60°, and the longitudinal section shape of the spiked microstructures 3 is triangular , the shape of the longitudinal section of the root is polygonal; the vertex angle β of the spike section is 15°, the width d of the spike microstructure 3 is 1 / 2 of the width D of the microchannel, and they are staggered on both sides of the inner wall of the microchannel 2.

[0037] The microreactor composed of the above microreaction channel structure forms a Y shape between the two liquid inlets 4, and is provided with a...

Embodiment 2

[0039] The micro-reaction channel structure of embodiment 2 is basically the same as the device system of embodiment 1, the difference is: as figure 2 As shown, the spike microstructure 3 is composed of three spikes gathered at the roots, the spikes spread out along the circumferential direction, and the opening and closing angle α of the spikes is 90°;

[0040] The micro-reactor composed of the above-mentioned micro-reaction channel structure is provided with two piezoelectric ceramic transducers as a hybrid strengthening module, and the two piezoelectric ceramic transducers are placed close to the microchannel 2, and the working of the piezoelectric ceramic transducers The frequency is 5kHz.

Embodiment 3

[0042] The micro-reaction channel structure of embodiment 3 is basically the same as the device system of embodiment 1, the difference is: as image 3 As shown, the vertex angle β of the spike section is 30°;

[0043] The micro-reactor composed of the above-mentioned micro-reaction channel structure is provided with three piezoelectric ceramic transducers as a hybrid strengthening module, and the three piezoelectric ceramic transducers are placed close to the microchannel 2, and the operating frequency of the piezoelectric ceramic transducers is 10kHz.

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Abstract

The invention discloses a micro-reaction channel structure, a micro-reactor based on the micro-reaction channel structure and a nano-material synthesis system, and can overcome the defects that an existing micro-reactor is long in reaction distance, poor in operability and the like. The reaction mixing efficiency can be flexibly regulated and controlled; and based on the strong liquid mixing effect, a nano material synthesis system is constructed. According to the design working scheme, the micro-reaction channel structure comprises a micro-channel with the characteristic scale ranging from 0.005 mm to 2 mm, a certain number of spine structures are arranged on the inner wall or in the middle of the micro-channel, spines such as petals and roots in a flower gather together, and leaf tips are unfolded in the circumferential direction. The spines with the roots gathered together form a microstructure. According to the nano-material synthesis system constructed based on the micro-reaction channel, multiple chemical reagents needed for synthesizing the nano-material are completely mixed through the micro-reaction channel for multiple times, the mixed liquid is led to a target site where the nano-material needs to be synthesized, and the nano-material is formed after post-treatment such as heating and drying.

Description

technical field [0001] The invention belongs to the technical field of fluid mixing and reaction strengthening, and in particular relates to a micro-reaction channel structure and a micro-reactor and nanomaterial synthesis system based on it. Background technique [0002] A microreactor is a reaction device with a small characteristic scale (generally 5 microns to 2 mm), with artificially designed microchannels inside it, used for various reaction processes in the fields of chemistry, chemical engineering, biology, and medicine. Compared with traditional macro-reactors, micro-reactors have attracted more and more attention from academia and industry due to their advantages such as extremely high surface area-to-volume ratio, less reactant consumption, and extremely fast reaction process. . [0003] Since the fluid movement in the microchannel is generally in a laminar flow state, which is not conducive to the mixing and reaction process, it is necessary to design the struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00B01F33/30B01F35/53C01G9/02
Inventor 赵雄郝南京
Owner XI AN JIAOTONG UNIV
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