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Electrostatic spinning method for preparing interlayer nano-fabric and device thereof

A spinning device and electrostatic spinning technology, applied in the direction of non-woven fabrics, layered products, textiles and papermaking, etc., to achieve the effect of easy operation and broad application prospects

Inactive Publication Date: 2010-06-09
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it must be completed in a multi-step process

Method used

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  • Electrostatic spinning method for preparing interlayer nano-fabric and device thereof
  • Electrostatic spinning method for preparing interlayer nano-fabric and device thereof
  • Electrostatic spinning method for preparing interlayer nano-fabric and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: Using the above electrospinning device to prepare PET and PAN interlayer nanofiber nonwovens

[0044] A certain quality of polyester chips (PET) is dissolved in trifluoroacetic acid and methylene chloride in a mixed solvent with a volume ratio of 4:1, the mass percentage of the solution is 13%, and it becomes a stable and uniform solution at room temperature, ready for use ; A certain quality of polyacrylonitrile (PAN) is dissolved in N, N-dimethylformamide (DMF), the mass percent of the solution is 10%, at room temperature into a stable, uniform solution, stand-by; the above The PET solution is injected into the first spinning device 21 through the liquid supply device, and the above-mentioned PAN solution is injected into the second spinning device 22 through the liquid supply device.

[0045] The distance between the spinneret 23 and the roller device 33 was 15 cm. The two spinnerets are respectively connected with voltages of 18kV and -15kV, which respec...

Embodiment 2

[0048] The same device and method as in Example 1 were used to prepare PET nanofiber non-woven fabrics.

[0049] First, a certain quality of polyester chips (PET) is dissolved in a mixed solvent with a volume ratio of trifluoroacetic acid and dichloromethane of 4:1, the mass percentage of the solution is 13%, and stirred at room temperature until it dissolves into a stable, uniform solution, and after standing for a few minutes, inject the above solution into the two jetting devices. Wherein, the distance between the spinneret and the roller device 33 is 13.5cm; the frequency of the reciprocating motion of the roller device 33 parallel to the axial direction of the roller device is 2 times / min; the rotational speed of the roller device 33 around the axial direction 200 revolutions per minute; electrospinning was performed at voltages of 18kV and -18kV respectively to obtain PET nanofiber non-woven fabrics.

Embodiment 3

[0051] The same device and method as in Example 1 were used to prepare PAN nanofiber non-woven fabrics.

[0052] First, a certain mass of polyacrylonitrile (PAN) is dissolved in N,N-dimethylformamide (DMF), the mass percentage of the solution is 10%, and it becomes a stable and uniform solution at room temperature, and it is left to stand for a few minutes Afterwards, inject the above solution into the two injection devices. Wherein, the distance between the spinneret and the roller device 33 is 13.5cm; the frequency of the reciprocating motion of the roller device 33 parallel to the axial direction of the roller device 33 is 2 times / min; The rotating speed is 200 rpm; electrospinning is carried out at voltages of 15kV and -15kV respectively to obtain PAN nanofiber nonwoven fabric.

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Abstract

The invention provides a spinning device used for molding interlayer nano-fabric for once, and a method for preparing the interlayer nano-fabric by applying the spinning device. The device comprises a machine body, a liquid supply device, a collecting device and at least two groups of spinning devices, wherein the two groups of spinning devices are respectively positioned at the left and the right sides of the machine body and respectively comprise at least one spinneret; the spinnerets of the two groups of spinning devices are arranged in an opposite way and are respectively connected with high voltage with opposite polarity; the collecting device is a roller device connected with a motor, can rotate around a shaft and is positioned between the two groups of spinnerets; the axial direction of the roller device is vertical to the spinning direction of the spinnerets; and the roller device can make axial reciprocating motion parallel to the roller device under the control of the motor. When different polymer solutions are provided by the two groups of spinning devices, the continuous interlayer nano-fabric can be formed on the surface of the roller device due to the action of electric field force as well as rotation and reciprocating motion of the roller device.

Description

technical field [0001] The invention relates to an electrospinning method and a device for preparing a nano-fabric, in particular to an electrospinning method and a device for preparing a micro / nano fiber fabric with an interlayer. Background technique [0002] In recent years, with the development of nanotechnology, nanomaterials have become a hot spot in the development of materials science. Nano-scale materials have many unique properties different from traditional materials, such as small size effect, interface effect, etc., which make them show great potential in many fields such as biotechnology, sensors, filter materials, medicine and health environment and energy, and national defense security. Eye-catching broad application prospects. Electrospinning technology is considered to be an ideal method to prepare continuous micro / nanofibers. The diameter of fibers prepared by electrospinning technology can reach the nanometer level, usually 3 nm to 5 μm, which is severa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/02D01D5/00B32B5/02D06M17/00
Inventor 李从举王伟媛
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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