Electrospinning device with bi-layer petal-shaped nozzle

Abstract

The invention discloses an electrospinning device with a bi-layer petal-shaped nozzle, and belongs to the field of electrospinning. The electrospinning device comprises a motor, a coupling, a feeding barrel, a discharging barrel, a receiving device, a high-voltage electrostatic generator, the nozzle, a heating unit, a screw, a copper-ring sliding bearing and a temperature sensor. The motor and the feeding barrel are supported by long bolts, the feeding barrel is connected with the discharging barrel through short bolts, the copper-ring sliding bearing is arranged between the feeding barrel and the discharging barrel in a matched manner, distribution flow passages are formed in the copper-ring sliding bearing and matched with the bi-layer petal-shaped nozzle to form bi-layer jet, the motor drives the screw to rotate through the coupling, the screw is matched with the feeding barrel and the discharging barrel through the copper-ring sliding bearing, and the lower end of the screw is connected with the nozzle in a threaded manner and drives the nozzle to rotate. The motor drives the screw to rotate, and thereby spinning feed delivery amount can be effectively controlled; due to multi-stage distribution and nozzle rotation, finer and evener fibers can be obtained; through the petal-shaped nozzle, spinning efficiency can be improved.

Description

technical field [0001] The invention relates to an electrospinning device of double-layer petal-shaped nozzles, which belongs to the field of electrospinning. Background technique [0002] With the research and development of nanotechnology, electrospinning has become a popular and more effective method for manufacturing ultrafine fibers. During preparation, the solution or melt forms a Taylor cone under the action of voltage. As the voltage increases, the Taylor cone overcomes its own surface tension to form a jet stream, flies to the receiving device, and continuously solidifies to form fibers. At present, dozens of polymer fibers have been successfully prepared by electrospinning, and the diameter of the prepared fibers is generally between several microns, and even reaches the nanometer level. Electrospinning equipment is simple, easy to operate, and the process does not damage the material body. The prepared fibers have broad application prospects in filtration, medici...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes an electrospinning device with double-layer petal-shaped nozzles, which can overcome the above-mentioned problems, overcome the defects of relatively low production efficiency and uneven flow rate of the electrospinning device, and at the same time make the fibers more uniform and finer

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