A Magnetic Stirring Electrospinning Device for Liquid Supply

Abstract

The invention discloses a magnetic-stirring liquid supply electrostatic spinning device which comprises a container, a magnetic stirring rotor, a drive system, a collection device and a power supply. The magnetic stirring rotor is arranged in the container. The drive system can generate a rotation magnetic field for driving the stirring rotor to rotate around its axis. The container comprises a side wall which surrounds the magnetic stirring rotor and forms a liquid storage cavity in the container. Jet holes are located in the portion, above the magnetic stirring rotor, of the side wall. The collection device is right opposite to the jet holes. The power supply can form an electric field between the collection device and the jet holes, wherein the electric field is used for generating jet flow. The swirling phenomenon generated by magnetic stirring is applied to the spinning device, a spinning solution or a melt can climb along the side wall of the container under the centrifugal force effect of magnetic stirring, the jet holes can generate Taylor cones and form jet flows if formed in the high-pressure electric field, the consumed spinning solution can be unceasingly supplemented by the climbing spinning solution, continuous and automatic liquid feeding is achieved, and large-scale industrialized production of nanometer fiber is facilitated.

Description

technical field [0001] The invention is used in the technical field of electrospinning, and in particular relates to an electrospinning device for magnetic stirring and liquid supply. Background technique [0002] Electrospinning technology is a technical method for preparing nanofibers. The principle is: the polymer solution will form a Taylor cone at the tip of the solution under the action of an electric field force, and then the Taylor cone tip will generate an electrospinning jet and stretch it through the electric field force. Complex processes such as solution volatilization, and finally nanofibers are obtained. Nanofibers prepared by electrospinning have the properties of small diameter and large specific surface area, and have a wide range of application potentials in biomedical materials, water filtration, battery separators and other fields. [0003] How to achieve efficient liquid supply in the electrospinning process has become a hot spot in the field of electr...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a magnetic stirring liquid supply electrospinning device, which solves the problems of low fiber production output, easy blockage of the spinneret and high stability requirements of the centrifugal spinning machine caused by using the needle as the spinneret. , collector directional arrangement collects difficult problems

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