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Method for preparing micro-nano-scale patterned electrospun fiber membrane

An electrospun fiber, micro-nano technology, applied in fiber processing, textiles and papermaking, and clustering of newly extruded filaments, etc., can solve the problems of inability to produce patterned electrospun fiber membranes, and achieve a high degree of automation and processing Convenient and repeatable effect

Inactive Publication Date: 2011-11-30
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

However, since its specific pattern collection plate is braided with metal wires of different diameters, and the diameter of the metal wires is 0.1mm-5mm, the minimum unit size of the patterned electrospun pattern is 0.1mm, which cannot Fabricated patterned electrospun fiber membrane with the minimum unit size of the pattern being micronano

Method used

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  • Method for preparing micro-nano-scale patterned electrospun fiber membrane
  • Method for preparing micro-nano-scale patterned electrospun fiber membrane
  • Method for preparing micro-nano-scale patterned electrospun fiber membrane

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specific Embodiment approach

[0021] A specific embodiment of the present invention is a method for preparing a micro-nano-scale patterned electrospun fiber membrane, the steps of which are:

[0022] A. Use a computer to draw the required pattern through the layout design software;

[0023] B. Input the pattern into the micro-electromechanical system, and the micro-electromechanical system deposits the metal on the non-metallic substrate according to the input pattern to obtain a receiving plate with micro-nano-level patterns;

[0024] In step B of this example, the metal is deposited on the non-metallic substrate by the MEMS according to the input pattern, and the specific method of obtaining the receiving plate with the micro-nano-scale pattern is: first, the photolithography of the MEMS The machine engraves the pattern on the non-metallic substrate, and then uses the DC magnetron sputtering machine of the MEMS to deposit the metal on the engraved points of the non-metallic substrate.

[0025] C. Using ...

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Abstract

The invention relates to a method for preparing a micro-nano-scale patterned electrospun fiber membrane. The method comprises the following steps: A) using a computer to draw a required pattern through layout design software; B) inputting the pattern into a micro-electrical mechanical system and using the micro-electrical mechanical system to deposit metal onto a non-metal base material according to the input pattern so as to get a receiving plate with the micro-nano-scale pattern; and C) taking the receiving plate with the micro-nano-scale pattern as the receiving plate of an electrospinning device and performing electrostatic spinning so as to get the micro-nano-scale patterned electrospun fiber membrane. By adopting the method, the patterned electrospun fiber membrane with micro-nano-scale minimal unit size of the pattern can be prepared, and the patterned electrospun fiber membrane has good application prospects in repair and manufacturing of micro-electronic devices, sensors, ultrafine filters and human tissues. Furthermore, the preparation process is simple and convenient, the degree of automation is high and the processed pattern is precise, controllable and good in repeatability.

Description

technical field [0001] The invention relates to a method for preparing a micro-nano patterned electrospun fiber membrane. Background technique [0002] Due to its high porosity, large specific surface area, high surface energy and high activity, electrospun nanofibers have attracted domestic and foreign scholars to study in many fields of nanomaterials, such as sensors, electronic devices, filter materials, biological therapy, etc. Using the traditional electrospinning method, due to the influence of many factors, the fibers obtained by jetting are randomly arranged, and it is difficult to achieve orderly and controllable deposition of fibers, which greatly limits the development and application of electrospinning technology. . [0003] Patterned (similar in shape to a specific pattern) fiber membranes have broad application prospects. For example, patterned fiber membranes can be used as microfluidic chips to improve the sensitivity of virus detection. Compared with ordina...

Claims

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Application Information

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IPC IPC(8): D04H1/72D01D5/00D01D7/00
Inventor 李孝红刘耀文
Owner SOUTHWEST JIAOTONG UNIV
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