Spiral electrostatic spinning device with tip structure

Abstract

The invention discloses a spiral electrostatic spinning device with a tip structure, and belongs to the technical field of electrospinning. The spiral electrostatic spinning device comprises a high-voltage power supply device, a spinning electrode and a receiving electrode. The spinning electrode is in a uniform-pitch cylindrical spiral line shape and is installed on a rotating shaft base through a rotating shaft coaxial with the spinning electrode, the spinning electrode has a sharp outer edge profile, and the high-voltage power supply device can form an electric field needed for generating jet flow between the spinning electrode and the receiving electrode. The sharp outer edge profile of the spinning electrode of the spiral electrostatic spinning device forms the tip structure, the tip part has the charge gathering effect, spinning induction can be prompted, spinning voltage can be reduced, the problem that spinning voltage is high in the needleless electrospinning technology can be solved, the fiber production quality can be further improved, and the fiber production yield can be further increased; the electrode tip structure is uniform in size and axial spacing, electric field distribution is uniform, jet flow can be uniformly generated, and uniform nanofibers can be deposited; the device is simple in structure and easy to machine, and industrial application is convenient.

Description

technical field [0001] The invention is used in the technical field of electrospinning, and in particular relates to a helical electrospinning device with a tip structure. Background technique [0002] Electrospinning technology is a technology that uses electrostatic field force to produce nanofibers. Its principle is: in a high-voltage electrostatic field, the charged polymer solution forms a Taylor cone under the action of the electric field force. When the electric field force is large enough, the charged liquid The drop overcomes its own surface tension to form a charged jet, and finally deposits and solidifies on the collection mechanism to form a nanofiber structure. [0003] The traditional needle-type electrospinning device is prone to blockage of the nozzle, difficult to clean, and the "edge effect" phenomenon of the array nozzle during the spinning process, which affects the quality of the fiber, and the spinning efficiency and output are low. Compared with nozzl...

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Problems solved by technology

[0005] Aiming at the problems of low output, high spinning voltage, high energy consumption, uneven electric field distribution in the spinning area and poor fiber forming quality in the prior art, the present invention provides a cutting-edge nanofiber batch manufacturing method. The helical electrospinning device of the structure effectively solves the above-mentioned problems and improves the efficiency and stability of making nanofibers from polymer solutions

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