Automatic control multi-spray-head electrostatic spinning equipment

An automatic control and electrospinning technology, which is applied in the direction of spinneret assemblies, textiles and papermaking, filament/thread forming, etc., can solve the problems that nanofiber membranes are not easy to mass-produce, and achieve high automation and high production efficiency The effect of improving and increasing productivity

Inactive Publication Date: 2012-11-14
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electrospinning device that can solve the problem that the continuous and stable batch production of nanofiber membranes is difficult, and the density of the produced nanofiber membranes is uniform, the fiber diameter is controllable, and the operation is simple and convenient, safe and efficient

Method used

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  • Automatic control multi-spray-head electrostatic spinning equipment
  • Automatic control multi-spray-head electrostatic spinning equipment
  • Automatic control multi-spray-head electrostatic spinning equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As mentioned above, a kind of automatically controlled multi-nozzle electrospinning equipment in this embodiment includes a receiving device 1 for receiving polymer fibers, the negative pole of the high-voltage electrostatic generator 6 is connected to the receiving device 1, and the high-voltage electrostatic generator 6 is connected to the receiving device 1. The negative electrode is connected to a self-cleaning multi-nozzle device 7 with at least one nozzle. The self-cleaning multi-nozzle device 7 is located below the receiving device 1, and the receiving distance between the self-cleaning multi-nozzle device 7 and the receiving device 1 is 6-35 cm. Under the control of the control unit 2, the multi-channel precision liquid supply pump 5 provides the spinning solution for the self-cleaning multi-nozzle device 7 at a set injection speed, and the spinning solution forms a jet flow under the action of the self-cleaning multi-nozzle device 7, and the jet...

Embodiment 2

[0049] The device in the present embodiment is similar to Embodiment 1, and the difference is that the number of holes 56 on the first insulating plate 10 is 8, and the spacing is 1.5 centimeters; the diameter of the spinneret 59 is 0.8 centimeters; The diameter of the holes on the bakelite board 58 is 0.8 centimeters, the number is 8, and the spacing is 1.5 centimeters.

[0050] Under the conditions of room temperature 25°C and humidity 45%, the polyvinyl alcohol (PVA) solution with a mass fraction of 12% is sucked into a 10 ml syringe, placed on the multi-channel precision liquid supply pump 5, and the multi-nozzle static electricity of the automatic control is adjusted. The process parameters of the spinning equipment are as follows:

[0051] The winding speed of receiving device 1 is 20 / min;

[0052] The back-and-forth linear speed of the dust-proof type lateral movement slide table 3 is 80 meters / minute;

[0053] The injection speed of the multi-channel precision liquid...

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Abstract

The invention provides automatic control multi-spray-head electrostatic spinning equipment, which comprises a high-voltage electrostatic generator, a receiving device and a lifting device and is characterized by also comprising an automatic control box, a dustproof transverse moving slide table, a multi-passage precise liquid supply pump and a self-cleaning type multi-spray-head device, wherein data interfaces of multi-passage precise liquid supply pump, the dustproof transverse moving slide table and the receiving device are respectively connected with the automatic control box, an injector is fixedly arranged at the multi-passage precise liquid supply pump, the self-cleaning type multi-spray-head device is connected with the front end of the injector, a bakelite plate covered with a conducting wire is fixedly arranged on a spinning head, a conducting clamp post is fixedly arranged on the bakelite plate covered with the conducting wire, and the high-voltage electrostatic generator is connected with the conducting clamp post. The automatic control multi-spray-head electrostatic spinning equipment has the advantages that the precision, integration and automation degree is high, the operation is simple, convenient, safe and fast, the production efficiency is high, and wide application prospects are realized in the industrial aspect of nanometer fibers.

Description

technical field [0001] The invention relates to an automatically controlled multi-nozzle electrostatic spinning device, which can realize continuous and stable production of nanofiber membranes or nanofiber composite membranes, and belongs to the field of nanomaterial industrialization. Background technique [0002] Electrospinning technology refers to that the polymer solution or melt is charged and deformed under a high-voltage electrostatic field, forming a pendant cone-shaped droplet at the end of the nozzle; when the charge repulsion on the surface of the droplet exceeds its surface tension, the droplet The surface will eject tiny liquid streams at high speed, referred to as "jet"; these jets will be stretched at high speed by electric field force, volatilized and solidified by solvent in a short period of time, and finally deposited on the receiving plate to form polymer fibers. The fiber diameter is generally distributed between several nanometers and several micromet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D01D4/04
Inventor 丁彬尚延伟林金友胡娟平任韬俞建勇
Owner DONGHUA UNIV
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