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Preparation device and method for three-dimensional electrostatic spinning

An electrospinning and preparation device technology, applied in textiles and papermaking, fiber processing, filament/thread forming, etc., can solve problems such as difficulty in forming, inability to build three-dimensional structures, thick nanofiber materials, etc., to broaden application fields, The effect of enhancing practicality and feasibility

Inactive Publication Date: 2021-08-27
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

However, the nanofibers obtained by the existing methods are all laid flat on the receiving device, and there is almost no space between the nanofiber layers, but stacked on top of each other, so that it is impossible to build a precise and controllable three-dimensional structure, and it is difficult to form thicker nanofibrous material

Method used

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  • Preparation device and method for three-dimensional electrostatic spinning
  • Preparation device and method for three-dimensional electrostatic spinning
  • Preparation device and method for three-dimensional electrostatic spinning

Examples

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preparation example Construction

[0047] The preparation method of a kind of three-dimensional electrospinning specifically comprises:

[0048] Step S101: Acquire the structural features of the desired three-dimensional nanofibers, the structural features include the thickness of the three-dimensional nanofibers and the specific surface area of ​​the three-dimensional nanofibers;

[0049] Step S102: According to the structural features, set the motion speed and step size of the three-axis displacement control system, and set the electrospinning parameters; the electrospinning parameters include: liquid inlet flow rate, spinning temperature, spinning relative Humidity, spinning time, high-voltage adjustable DC power supply voltage amplitude, vertical distance between the liquid collection device and the metal needle, the flow rate, type and temperature of the collected liquid, and the trajectory of the liquid collection device.

[0050] Specifically, since the movement speed of the three-axis displacement contr...

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Abstract

The invention relates to the technical field of electrostatic spinning, and provides a preparation device and method for three-dimensional electrostatic spinning. The preparation device for the three-dimensional electrostatic spinning comprises a peristaltic pump liquid pushing system, a liquid collecting device, a three-axis displacement control system and a liquid flow controller; a metal needle head is arranged on the peristaltic pump liquid pushing system, and the metal needle head is suspended above the liquid collecting device; the liquid collecting device is fixed to the surface of the three-axis displacement control system; a liquid pool connected with the liquid flow controller is arranged on the liquid collecting device and used for receiving the spinning solution ejected by the metal needle head; and collecting liquid is contained in the liquid pool and used for depositing nanofibers. By regulating and controlling the electrostatic spinning parameters and collecting the physicochemical properties of the liquid, the density and thickness of the three-dimensional nanofiber are regulated and controlled, the practicability and feasibility of the nanofiber are enhanced, and the application field of the nanofiber is widened.

Description

technical field [0001] The present application relates to the technical field of electrospinning, in particular to a preparation device and method for three-dimensional electrospinning. Background technique [0002] Electrospinning technology has developed rapidly since its inception, and has become the main preparation method of nanofiber materials. The principle of electrospinning technology is: under the action of a strong electrostatic field, the electrospinning liquid is stretched from the needle tip of the spinning device to form a continuous jet, and solidifies into a nanometer to submicron diameter when it is close to the receiving device. Fibrous filaments. At present, the diameter of fibers obtained by electrospinning technology is generally several hundred nanometers, and the materials formed by the aggregation of these fibers have the characteristics of small pore size, high porosity, good fiber continuity, and controllable bulk density. Therefore, the electros...

Claims

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Application Information

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IPC IPC(8): D01D5/00D01D10/06
CPCD01D5/0076D01D5/0069D01D5/0092D01D10/06
Inventor 周年荣何萧李宗红翟少磊刘荣海何运华
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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