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A polymer solution-based magnetic fluid self-assembled needle-free electrospinning device and method for electrospinning nanofibers thereof

A polymer solution and magnetic fluid technology, applied in the direction of single-component synthetic polymer rayon, electrospinning, fiber treatment, etc., can solve the production process such as the shape of the polymer at the needle point and its parameters are difficult to control, and the production process is difficult Stable control, complex structure of needleless electrospinning equipment and other issues, to achieve the effect of simplified structure, continuous specifications, and improved production efficiency

Inactive Publication Date: 2018-07-06
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the structure of this device has been simplified compared to CN201310186515.0, the structure is still relatively complicated, and the production process and its parameters such as the shape of the polymer at the needle point are difficult to control
[0009] Although the above-mentioned needle-free spinning technology effectively solves the problems existing in traditional electrospinning equipment, the structure of these needle-free electrospinning equipment is too complicated, and the production process is difficult to control stably, which brings inconvenience to the mass production of nanofiber materials.

Method used

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  • A polymer solution-based magnetic fluid self-assembled needle-free electrospinning device and method for electrospinning nanofibers thereof
  • A polymer solution-based magnetic fluid self-assembled needle-free electrospinning device and method for electrospinning nanofibers thereof

Examples

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Effect test

Embodiment 1

[0034] Such as figure 1 and 2 As shown, this embodiment provides a polymer solution-based ferrofluid self-assembled needle-free electrospinning device, which includes a groove 1 made of plexiglass, a controllable magnetic field generating module 2, a high-voltage electric field generating module 3, and is used to collect fibers. The conductive fiber receiving module 4 of silk and a conical tower 5 with electrical conductivity and magnetic permeability, the surface of the conical tower 5 is provided with a threaded groove 51 spirally rising along the conical tower 5;

[0035]The conical tower 5 is evenly distributed in the groove 1, the fiber receiving module 4 is arranged above the conical tower 5, and the controllable magnetic field generating module 2 is arranged below the groove 1 and is used to apply a controllable The magnetic field is on the conical tower 5 , one end of the high-voltage electric field generating module 3 is electrically connected to the fiber receiving ...

Embodiment 2

[0047] In this example, also refer to figure 1 and figure 2 , the polymer solution-based ferrofluid self-assembled needle-free electrospinning device is substantially the same as in Example 1, the difference being specifically: the taper of the conical tower 5 is 0.18; the height of the conical tower 5 is is 6.67cm; the depth of the thread groove 51 is 0.30cm; the pitch of the thread groove 51 is 0.65cm, and the distance between the fiber receiving module 4 and the groove 1 is 18cm.

[0048] In the production process, the specific method of electrospinning nanofibers is as follows:

[0049] S1: Add an appropriate amount of high molecular polymer solution-based magnetic fluid B to the groove 1; the preparation method of high molecular polymer solution-based magnetic fluid B is: first configure the polyvinyl alcohol (PVA) with a mass volume ratio of 7wt%. Aqueous solution, after mixing evenly, add 0.2g / ml of coated Fe3O4 powder into the above solution and mix evenly;

[0050...

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Abstract

The invention discloses a polymer solution-based magnetofluid self-assembly needle-free electro-spinning device which comprises a groove. The device further comprises a controllable magnetic field generation module, a high-voltage electric field generation device, a conductive fiber receiving device used for collecting cellosilk, and at least one conductive and magnetic conductive cone tower. The surface of the cone tower is provided with a threaded groove ascending spirally along the cone tower. The polymer solution-based magnetofluid self-assembly needle-free electro-spinning device is simple in structure, operation is controllable and easy to control, and processing efficiency is high. Meanwhile, the invention further provides a nanofiber electro-spinning method achieved through the needle-free electro-spinning device. According to the method, the aim of controlling jetting of polymer solution-based magnetofluid is achieved by controlling electric and magnetic fields. The method is controllable, easy to control and good in control accuracy.

Description

technical field [0001] The invention relates to the technical field of electrospinning, in particular to a polymer solution-based magnetic fluid self-assembled needle-free electrospinning device. At the same time, the invention also discloses an electrospinning machine using the needle-free electrospinning device for spinning. nanofiber approach. Background technique [0002] At present, in the technical field of electrospinning, the output of various materials is in short supply, especially nano-materials. Nano-fiber materials can be widely used in the purification and filtration of chemical, pharmaceutical and other products, and can also be used to make advanced protective clothing and other fields. . [0003] Electrospinning equipment is a kind of equipment that can prepare nanofiber materials, and the electrospinning technology has been developed relatively maturely. However, there are still some problems, the most obvious problems are the clogging of the injection ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01F6/50D01F6/56D01F1/10
CPCD01D5/003D01D5/0061D01D5/0076D01D5/0092D01F1/10D01F6/50D01F6/56
Inventor 蒋乐伦王红建
Owner SUN YAT SEN UNIV
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