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Rotary porous electrostatic spinning device

A technology of electrospinning and porous turntable, which is applied in textiles and papermaking, filament/thread forming, fiber processing, etc. It can solve the problems that the uniformity of bubbles is difficult to control, the solution is easy to block the needle, and industrial production cannot be achieved. Low cost, improved uniformity and stability, and strong applicability

Active Publication Date: 2013-09-18
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The traditional nano-electrospinning technology has some defects, such as low output, and it is greatly affected by the concentration and viscosity of the solution, and due to the small diameter of the needle, the solution is easy to block the needle during use.
In response to these problems, a method of air bubble electrospinning has been proposed at present. However, this method is still in the laboratory preparation stage, and the uniformity of air bubble generation is difficult to control, and it cannot be mass-produced industrially. The production of nanofibers is still a problem. Urgent need to solve

Method used

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  • Rotary porous electrostatic spinning device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Please also see figure 1 and Figure 4 , figure 1 It is a schematic structural diagram of a rotating porous electrospinning device disclosed in the present invention. Figure 4 It is a structural schematic diagram of a porous turntable in a rotary porous electrospinning device disclosed in the present invention. As shown in the figure, a rotating porous electrospinning device includes a liquid storage tank 1, a transmitter, a positive electrode 8, a high-voltage electrostatic generator 5, and a receiving device and a negative electrode 10 located above the liquid storage tank 1, and the transmitter The positive electrode 8 is connected to the high-voltage electrostatic generator 5, the negative electrode 10 is electrically connected to the receiving device, and a voltage difference is formed between the positive electrode 8 and the negative electrode 10; the transmitter is a porous turntable 2, and the porous turntable 2 is located in the liquid storage pool 1, and t...

Embodiment 2

[0049] Such as figure 2 As shown, the rest is the same as that of Embodiment 1, except that a receiving roller 21 is used instead of the receiving pole plate 9 in the receiving device.

Embodiment 3

[0051] Such as image 3 As shown, the rest is the same as the embodiment, the difference is that the liquid reservoir 1 and the transmitter can be in one group, or multiple groups arranged side by side, and a plurality of porous turntables 2 can share one driving mechanism. This enables multiple groups of structures to work simultaneously, realizes the large-scale production of nanofibers, improves production efficiency, and reduces production costs.

[0052] The invention discloses a rotating porous electrospinning device. When the porous turntable rotates, the air holes are stained with solution, and air is sprayed to each air hole correspondingly under the action of an air pump, so that the porous turntable continuously generates air bubbles at the uppermost air holes. Under the action of electrostatic force, the bubbles burst to form a jet, and deposit on the receiving device to form a large number of nanofibers, realizing high efficiency, low energy consumption and contin...

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Abstract

The invention discloses a rotary porous electrostatic spinning device. The rotary porous electrostatic spinning device comprises a porous turnplate, wherein the porous turnplate is positioned inside a liquid storage tank; when the porous turnplate rotates, air holes are stained with a solution; under the action of an air pump, air is sprayed into the corresponding air holes so as to generate bubbles at the air holes at the uppermost end of the porous turnplate constantly; under the action of static electricity, the bubbles rupture to form a jet, and deposit on a receiving device to form a large number of nanofibers, thus achieving high-efficiency, low energy consumption and continuous production of microfibers and nanofibers; by rotating the circular porous turnplate, single bubbles are generated at the top end of the porous turnplate constantly, thus improving the bubble generating uniformity and stability and achieving large-scale production of the nanofibers; the rotary porous electrostatic spinning device is high in production efficiency, low in production cost, simple in structure, convenient to operate and high in applicability, and can meet requirements of massive production and product application on the nanofibers and related products thereof.

Description

technical field [0001] The invention belongs to the technical field of electrostatic spinning, and in particular relates to a rotating porous electrostatic spinning device. Background technique [0002] Electrospinning technology is currently one of the most direct and basic methods for preparing ultrafine fibers and nanofibers. Nanofibers prepared by electrospinning technology have ultra-high specific surface area, large aspect ratio, high surface activity, and superior The mechanical properties (high strength and high toughness) and other characteristics have very broad application prospects in different fields such as textile engineering, environmental engineering, biotechnology, medical and health care, energy storage, military and anti-terrorism security. [0003] At present, the preparation of nanofibers in laboratories and industries widely adopts single-nozzle or multi-nozzle syringe electrospinning nanofiber devices. Such as Chinese patent "An Electrospinning Devic...

Claims

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Application Information

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IPC IPC(8): D01D5/00
Inventor 何吉欢孔海燕陈柔羲
Owner SUZHOU UNIV