Microfluidic experimental device for studying dynamic process of acoustic and electric field filter aid

Abstract

The invention discloses a microfluidic experimental device for studying the dynamic process of acoustic and electric filed filter aid. The microfluidic experimental device comprises a millimeter scale microfluidic chip, wherein the bottom of the millimeter scale microfluidic chip is adhered onto a sealing film, and a reaction chamber is arranged in the middle of the millimeter scale microfluidic chip; microchannels communicated with the reaction chamber are arranged in the middle of the left and right sides of the reaction chamber, and an ultra-filtration screen assembly for dividing the reaction chamber into left and right half-chambers is arranged in the middle of the reaction chamber; and two electrode plates which are connected with an electric field signal generator and generate an electric field are arranged in each half-chamber, and an ultrasonic transducer which is connected with an ultrasonic signal generator and generates ultrasonic oscillation signals is arranged at one side of the outer wall of one half-chamber. The dynamic process of acoustic and electric filter aid is introduced into a microscale condition to realize the observation of the dynamic process of acoustic and electric filter aid under the microscale condition.

Description

technical field [0001] The present invention relates to ultrafiltration and microfluidic technology, in particular to a microfluidic experimental device for the research on the dynamic process of acoustic-electric field-aided filtration. angle to observe. Background technique [0002] Ultrafiltration technology is a special membrane with high selective permeability membrane as the separation medium, based on the principle of mechanical sieving, and driven by the pressure difference on both sides of the membrane, so that small molecular solutes and solvents can pass through a special membrane with a certain pore size. Macromolecular solutes cannot pass through and stay on one side of the membrane, thereby separating, fractionating, purifying and enriching the high-tech of the two-component or multi-component mixture system. At present, ultrafiltration technology has been applied in many industries such as biomedicine preparation, sewage treatment, and rapid detection of soil...

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Problems solved by technology

[0004] The purpose of the present invention is to propose a microfluidic experimental device for the study of the dynamic process of acoustic-electric field filter-aid in view of the defect that traditional devices cannot study the mechanism of acoustic-electric field filter-aid from a microscopic point of view, which is used in conjunction with a micro-volume particle velocimeter It is possible to observe and analyze the microscopic dynamic process of the acoustic electric field filter aid, so as to facilitate the research on the acoustic electric field filter aid mechanism

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