Electrostatic spinning device capable of preparing core-shell structure nanofibers in batches

Abstract

The invention relates to an electrostatic spinning device capable of preparing core-shell structure nanofibers in batches. The electrostatic spinning device comprises a liquid storage tank, a first gear arranged in the liquid storage tank, a second gear in transmission connection with the first gear through a chain, a driving liquid supply mechanism used for driving the second gear to rotate, a high-voltage power supply connected with the second gear, and a receiving mechanism; an electrostatic field is formed between the second gear and the receiving mechanism; the second gear comprises an open hole tip part, and the tip part is meshed with the chain; the chain is driven to pass through the liquid storage tank to enable the pitch of the chain to store a shell layer spinning solution; when the pitch with the shell layer spinning solution moves to the open hole tip part and is meshed with the open hole tip part, a plurality of similar coaxial spinning head structures are formed; and the shell layer spinning solution and a core layer spinning solution are stretched into filaments under the action of the electrostatic field to form core-shell structure fibers until the fibers are received on the receiving mechanism. The spinning continuity and stability can be improved, and meanwhile the spinning efficiency and yield are improved.

Description

technical field [0001] The invention relates to an electrospinning device capable of preparing core-shell nanofibers in batches, and belongs to the technical field of electrospinning. Background technique [0002] So far, electrospinning is one of the most effective methods to stably prepare nanofibers. Nanofibers obtained by electrospinning have high specific surface area, high porosity, and good biocompatibility, so they have received extensive attention in the field of biomedical materials in recent years, especially the use of coaxial electrostatic The research on the preparation of core-shell nanofibers by spinning technology in the field of drug sustained release has attracted the attention of scholars at home and abroad. However, the coaxial electrospinning equipment has high requirements on the spinning solution, and pinhole blockage is prone to occur during the spinning process, which affects the continuity and stability of the spinning process, and then affects th...

AI Technical Summary

Problems solved by technology

However, the coaxial electrospinning equipment has high requirements on the spinning solution, and pinhole blockage is prone to occur during the spinning process, which affects the continuity and stability of the spinning process, and then affects the morphology and quality of the nanofiber membrane. And the fiber film yield is low

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