Electrospinning device for preparing fluffy nanometer fibers

Abstract

The invention provides an electrospinning device for preparing fluffy nanometer fibers and relates to electrospinning collection devices. The electrospinning device is provided with an electrostatic spinning generating device, a collection device, an air injection device, a controller, a high-pressure air generating device and an air pressure valve; the electrostatic spinning generating device is provided with a high pressure power source and a spinning nozzle, and the positive electrode of the high pressure power source is connected with the positive electrode of the spinning nozzle; the collection device is located under the spinning nozzle, the collection device is provided with collection cloth, a coiling shaft, an uncoiling shaft and a metal mesh, the two ends of the collection cloth are wound on the coiling shaft and the uncoiling shaft respectively, and the metal mesh is located below the collection cloth and grounded; the air injection device is close to the position under the metal mesh and provided with an air injection plate, the air injection plate is provided with an air injection nozzle array, an electromagnetic flow valve is arranged below each air injection nozzle, and all air injection nozzles are gathered through an air flow pipe; the controller is connected with the electromagnetic flow valves; the air generating device is connected with the air flow pipe, serving for gathering, of the air injection device, and the air pressure valve is located between an air guide pipe of the high pressure air generating device and the air flow pipe for gathering the air injection device.

Description

technical field [0001] The invention relates to an electrospinning collection device, in particular to an electrospinning device for preparing fluffy nanofibers based on electrospinning. Background technique [0002] Due to its super high specific surface area, good air permeability, high porosity and other superior properties, electrospun nanofibrous membranes have great market potential in the fields of filtration purification, tissue engineering and diaphragms. However, the rapid whipping of nanofibers in the electrospinning deposition process and the action of strong electric fields, the fibers of the traditionally collected membranes are relatively tightly arranged, which also limits the improvement of some application properties. For example, when the nanofiber membrane is used as a high-precision air filter material, due to the short effective path of dust passing through the nanofiber filter material, the filtration efficiency is relatively low, and the filter materi...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems in the current electrospinning process, such as fast fiber decline, tight fiber arrangement and difficulty in obtaining fluffy fibers, the present invention provides micro air flow generated by array air nozzles at the collection end to reduce the fiber deposition speed, so that the fibers are deposited into a three-dimensional structure, thereby Obtain fluffy fibers, wide applicability, suitable for collecting fibers obtained by electrospinning of various polymers, high degree of transplantability, and can be matched with most electrospun nanofiber generating devices to prepare fluffy nanofibers electrospinning device

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