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Regular microporous film and preparation method and application thereof

A microporous membrane and regular technology, applied in the field of microfluidics, can solve the problems of complex microporous membrane technology, difficulty in achieving uniform pore size, controllable pore spacing, etc., and achieve uniform pore size, simple preparation method, environment and equipment. require less effect

Inactive Publication Date: 2019-05-24
INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and deficiencies of the microporous membrane prepared by thin film emulsification technology in the prior art, which are complicated in process, difficult to achieve uniform pore size and controllable pore spacing, and provide a regular microporous membrane

Method used

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  • Regular microporous film and preparation method and application thereof
  • Regular microporous film and preparation method and application thereof
  • Regular microporous film and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides a regular microporous membrane.

[0052] Its preparation method comprises the following steps:

[0053] (1) Cut the 500-mesh (aperture 25 μm, hole spacing 24 μm) standard sample screen into small pieces with a width of 0.5 cm and a length of 1 cm;

[0054] (2) The screen cloth obtained in (1) is successively cleaned with deionized water and absolute ethanol;

[0055] (3) Soak the cleaned screen with 1.5% hydrochloric acid until there is no observable rust;

[0056] (4) Immerse the treated screen into 8-12g / L copper, 80-130g / L hydroxyethylidene diphosphate, 6-12g / L potassium tartrate, 40-60g / L potassium carbonate, and 2-4g / L hydrogen peroxide. The plating solution of L is used as the cathode, and a piece of pure copper is used as the anode to immerse in the plating solution;

[0057] (5) Use the digital source meter as the power supply, the power supply mode is a constant current of 10mA, and the power supply lasts for 1 hour.

[0058] Among th...

Embodiment 2

[0061] This embodiment provides a regular microporous membrane.

[0062] Its preparation method comprises the following steps:

[0063] (1) Cut the 500-mesh (aperture 25 μm, hole spacing 24 μm) standard sample screen into small pieces with a width of 0.5 cm and a length of 1 cm;

[0064] (2) The screen cloth obtained in (1) is successively cleaned with deionized water and absolute ethanol;

[0065] (3) Soak the cleaned screen with 1.5% hydrochloric acid until there is no observable rust;

[0066] (4) Immerse the treated screen into 8-12g / L copper, 80-130g / L hydroxyethylidene diphosphate, 6-12g / L potassium tartrate, 40-60g / L potassium carbonate, 2-4g / L hydrogen peroxide The plating solution of L is used as the cathode, and a piece of pure copper is used as the anode to immerse in the plating solution;

[0067] (5) Use the digital source meter as the power supply, the power supply mode is a constant current of 10mA, and the power supply lasts for 2 hours.

[0068] Among them...

Embodiment 3

[0071] This embodiment provides a regular microporous membrane.

[0072] Its preparation method comprises the following steps:

[0073] (1) Cut the 500-mesh (aperture 25 μm, hole spacing 24 μm) standard sample screen into small pieces with a width of 0.5 cm and a length of 1 cm;

[0074] (2) The screen cloth obtained in (1) is successively cleaned with deionized water and absolute ethanol;

[0075] (3) Soak the cleaned screen with 1.5% hydrochloric acid until there is no observable rust;

[0076] (4) Immerse the treated screen into 8-12g / L copper, 80-130g / L hydroxyethylidene diphosphate, 6-12g / L potassium tartrate, 40-60g / L potassium carbonate, and 2-4g / L hydrogen peroxide. The plating solution of L is used as the cathode, and a piece of pure copper is used as the anode to immerse in the plating solution;

[0077] (5) Use the digital source meter as the power supply, the power supply mode is a constant current of 10mA, and the power supply lasts for 3 hours.

[0078] Among...

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Abstract

The invention relates to a regular microporous film and a preparation method and application thereof. The regular microporous film comprises a porous film body and a deposition layer deposited on thesurface and the interior of holes of the porous film body; and the holes of the porous film body and the deposition layer form regular micropores. The regular microporous film has uniform pore size and controllable hole pitches; the preparation method technology is simple, requirements on the environment and equipment in the technology process are less, and general laboratories or plants can meetthe requirements; and the regular microporous film can be applied to a plurality of fields such as film emulsification, environment monitoring, filtration and ion batteries, and the application prospects are wide.

Description

technical field [0001] The invention belongs to the field of microfluidics, and in particular relates to a regular microporous membrane and its preparation method and application. Background technique [0002] The micro-droplet system is widely used in the fields of chemistry, chemical engineering and life science because of its small droplet size, large interface area, and relative independence of each droplet. The methods for preparing micro-droplets include traditional mechanical stirring method and ultrasonic emulsification method, as well as microfluidic method and film emulsification method that have emerged in recent years. Different from the traditional micro-droplet system preparation method, which can only prepare polydisperse droplets, the microfluidic method and the film emulsification method can prepare monodisperse micro-droplet systems, and the film emulsification method has both the micro-droplets produced The characteristics of good monodispersity and large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/38C25D7/00
Inventor 金名亮龙宇琪水玲玲
Owner INT ACAD OF OPTOELECTRONICS AT ZHAOQING SOUTH CHINA NORMAL UNIV
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