Needleless electrostatic spinning device with porous flexible pipe

Abstract

The invention discloses a needleless electrostatic spinning device with a porous flexible pipe. The device comprises a spinning solution storage chamber, a hydraulic pump, a porous flexible pipe, a supporting framework, clamping hoops, a high-voltage static generator, receiving net curtains and guide rollers, wherein the hydraulic pump is connected to the spinning solution storage chamber; a feeding hole is located in one end of the porous flexible pipe; the porous flexible pipe is fixed on the supporting framework by the clamping hoops made of an insulating material; the clamping hoops and the supporting framework are connected by threads; the other end of the porous flexible pipe is sealed by a pipe joint; the high-voltage static generator is connected to the outer surface of the porous flexible pipe; receiving devices are located right above and right below the porous flexible pipe; the guide rollers are fixed on the supporting framework; the receiving net curtains are fixed on the guide rollers; the receiving net curtains can output packaged nano-fiber mats with rolling of the guide rollers, and the receiving net curtains are grounded by conducting wires. The device disclosed by the invention has the advantages that the bore diameter of an inner pipe can be changed through adjustment of the back pressure of a spinning solution inside the pipe based on adjustment of the hydraulic pump, and metal wire edges distributed in various forms can be formed on the surface of a metal flexible pipe, so that more jet flows can be generated easily.

Description

technical field [0001] The invention relates to a porous flexible tube needle-free electrostatic spinning device, which belongs to the field of electrostatic spinning. Background technique [0002] Electrospinning is a simple, efficient and economical method for preparing nanofibers. The process principle is: a high-voltage electrostatic field is applied between the nozzle and the receiving device, and the polarized fluid overcomes the surface tension under the action of the electric field force to generate electrification. Jet streams, solutions or melt jets solidify during the injection process and eventually fall on the receiving device to form microfibers. [0003] Traditional needle electrospinning has low production efficiency and small output, which limits the industrial production of electrospinning and the popularization and application of its products. Increasing the number of needles can increase the output of electrospinning, but the limitation of needle spacing...

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a needle-free electrospinning device for porous flexible tubes, which uses a hydraulic device to feed materials, and uses a composite flexible tube combined with a porous elastic tube and a snakeskin metal hose as a jet injector. Compared with the traditional single-jet needle spinning Silk, not only solves the problems of low output and easy clogging of needles, but also realizes the control of fiber diameter and shape

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