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Electrostatic spinning device

A technology of electrospinning and generating device, which is applied in textile and papermaking, filament/thread forming, bundling of newly ejected filaments, etc., can solve the problems of limited application field, poor compactness, and small thickness of electrospun fiber membrane. , to achieve the effect of promoting application, promoting stretch refinement, and rapid manufacturing

Active Publication Date: 2013-10-02
XIAMEN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

The above two methods can preliminarily realize the three-dimensional pattern fabrication of electrospun fibers, but the thickness of electrospun fibers is small (only a few hundred microns) and the density is poor, so their application fields are still limited.

Method used

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Embodiment Construction

[0026] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0027] As a specific example, such as figure 1 and figure 2 As shown, an electrospinning device of the present invention includes: a liquid supply device 19, a liquid separator 18, a plurality of electrospinning nozzles 2, a high voltage power supply 1, an auxiliary gas generating device, a cylindrical Guide 3 and a pair of net tube collectors.

[0028] The outlet of the liquid supplier 19 is connected to a liquid distributor 18, the outlet of the liquid distributor 18 is connected to the electrospinning nozzle 2, and the high voltage power supply 1 is connected to the electrospinning nozzle 2 through wires.

[0029] The auxiliary gas generating device includes an air supply pump 17, a gas pipe 16 and a ventilation cover 15, and the ventilation cover 15 communicates with the gas supply pump 17 through the gas pipe 16 to form an auxiliary air flow ...

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Abstract

The invention relates to the technical field of preparation of polymer electrospun fibers by adopting an electrostatic spinning technique, and provides an electrostatic spinning device which comprises a liquid supply device, a liquid distribution device, a plurality of electrostatic spinning nozzles, a high-voltage power supply, an auxiliary gas generating device, a cylindrical guiding device and a double-net-cylinder collector, wherein the auxiliary gas generating device comprises an air feed pump, an air tube and a vent hood, and the vent hood is communicated with the air feed pump through the air tube, so as to form an auxiliary airflow channel; the plurality of electrostatic spinning nozzles are uniformly distributed in the vent hood; the cylindrical guiding device is arranged below the auxiliary gas generating device; the double-net-cylinder collector is arranged inside the cylindrical guiding device. The electrostatic spinning device introduces auxiliary airflow to promote jetting and stretching of jet flow, and utilizes the squeezing effect of the airflow to guide spinning nanofibers to perform multilayered three-dimensional deposition in the double-net-cylinder collector, so as to realize quick manufacturing of a columnar nano-fiber filter, and promote the application of the electrostatic spinning technique in the field of filtration.

Description

technical field [0001] The invention relates to the technical field of preparing polymer electrostatic spinning fibers by electrostatic spinning technology, in particular to an electrostatic spinning device. Background technique [0002] Electrospinning has gradually become a simple and effective technique for preparing nano / micro fibers since it was invented by Formhals in 1930. It can successfully prepare most polymers and their copolymers, block copolymers, derivatives, etc. into electrospun fibers with diameters ranging from 3nm to 5μm. The principle is: under the action of a high-voltage electrostatic generator, a high-voltage electrostatic field is formed between the electrospinning liquid spinning device and the electrospinning fiber receiving device, and the polymer solution forms droplets at the nozzle of the electrospinning liquid spinning device and is absorbed Charging, the charged droplets are accelerated at the top of the Taylor cone under the action of the el...

Claims

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Application Information

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IPC IPC(8): D01D5/00D01D7/00
Inventor 郑高峰张忠达陈丹阳白鹏何广奇刘海燕林奕宏孙道恒
Owner XIAMEN UNIV
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