Electrostatic spinning device for preparing directional arrangement nano fiber

Abstract

The invention relates to an electrostatic spinning device which is used for preparing direction arrangement nanofibers. The device comprises a high voltage source, an injector, an ejector jet pump which pushes the injector and a gathering unit, wherein, the high voltage source which is connected with the position of an injector pinhead is anode; the gathering unit which is ground connection by an earth wire is cathode; the device is characterized in that the gathering unit is an open fiber gathering device which consists of two parts of a performance element and a control unit; wherein, the performance element is an open roller which is formed by a centre pivot and a copper pipe which is parallel to the centre pivot, the two ends of the copper pipes are fixed on the periphery of an aluminum subpanel; the roller has a copper centre pivot; the control unit comprises a driving motor and a rotary speed controller; the motor drives the roller to rotate by a shaft joint; the motor shields the disturbance of electric field by a shield cover; the rotary speed controller controls the rotate speed of the motor, and the rotate speed is 800-1000rpm; the performance element and the control unit are all supported by a PVP plate. The produced nanofibre has the advantages of good order and thick film, and is suitable for biomedicine support materials.

Description

technical field [0001] The invention relates to an electrospinning technology for aligning nanofibers, and is an electrospinning device for preparing aligned nanofibers. Background technique [0002] Electrospinning is a technology in which polymer solution or melt is sprayed and stretched under electrostatic action to obtain nanoscale fibers, that is, DC high voltage is applied between the polymer solution or melt and the collection device to make the polymer solution or melt The body is charged with thousands to tens of thousands of volts of high-voltage static electricity. When the electric field force is strong enough, the charged polymer droplets overcome the surface tension to form a jet stream. The thin stream solidifies with the evaporation of the solvent during the spraying process, and finally falls on the collecting device to form a fiber mat similar to a non-woven fabric, and its nanofiber diameter is generally between tens of nanometers and several microns. ...

AI Technical Summary

Problems solved by technology

If the collection device is a static flat plate, the obtained nanofibers must be disorderly arranged, and the application value of this disorderly arranged nanofibers is greatly reduced

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