Force-sensitive stretchable electro-spinning patterning conductive nanofiber membrane and preparation method thereof

A nanofiber film, conductive nanotechnology, applied in fiber treatment, textiles and papermaking, non-woven fabrics, etc., to achieve good recovery characteristics, wide application, simple methods and devices

Active Publication Date: 2015-09-09
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing studies on electrospun patterned fiber membranes are mostly limited to non-conductive materials. Electrospun patterned conductive polymers (such as polyaniline PANI, poly(3,4-ethylenedioxythiophene) PEDOT, polypyrrole PPY, etc.) ) nanofibrous membranes have hardly been reported, and the research on the performance and application of electrospun patterned nanofibrous membranes is still in the blank stage.

Method used

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  • Force-sensitive stretchable electro-spinning patterning conductive nanofiber membrane and preparation method thereof
  • Force-sensitive stretchable electro-spinning patterning conductive nanofiber membrane and preparation method thereof
  • Force-sensitive stretchable electro-spinning patterning conductive nanofiber membrane and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a force-sensitive stretchable electrospun patterned conductive nanofiber film, comprising the following steps:

[0027] (1) Preparation of spinning precursor solution: 1.0 grams of polyvinylpyrrolidone powder with a molecular weight of 1.3 million and 3.0 grams of poly(3,4-ethylenedioxythiophene) / polystyrenesulfonic acid aqueous solution with a mass fraction of 2.8wt% , and 2 grams of absolute ethanol were mixed, then 0.2 grams of dimethyl sulfoxide was added, and magnetically stirred at room temperature for 5 hours to make the solution evenly mixed, and then left to stand for 90 minutes to obtain a uniform electrospinning precursor solution;

[0028] (2) The spinning precursor solution prepared in step (1) is placed in a spinning solution container with a metal nozzle. Directly below the injection port of the metal nozzle and connected to the negative pole of the DC high-voltage power supply, adjust the spinning distance, the precursor solution f...

Embodiment 2

[0031] The preparation method of the force-sensitive stretchable electrospun patterned conductive nanofiber membrane of Example 2 is similar to that of Example 1, the difference is that step (1) prepares the spinning precursor solution: 1.0 g of undoped intrinsic state Polyaniline (molecular weight: 120,000) was mixed with 1.29 g of camphorsulfonic acid, dissolved in 100 ml of chloroform, and magnetically stirred at room temperature for 4 hours. The resulting dark green solution (doped polyaniline) was filtered, then 32 mg of polyethylene oxide (molecular weight 2,000,000) was added to the filtrate, and the solution was filtered again after magnetic stirring at room temperature for 2 hours to obtain a uniform electrospun Precursor solution; the spinning distance in step (2) is 10 centimeters, the spinning voltage is 14 kilovolts, and the spinning time is 15 minutes. The collection template is an insulating plastic net, and the insulating plastic net is lined with aluminum foil ...

Embodiment 3

[0034] The preparation method of the force-sensitive stretchable electrospun patterned conductive nanofiber membrane of embodiment 3 is similar to that of embodiment 1, the difference is: step (1) preparation of spinning precursor solution: 0.5 gram of polypyrrole powder (molecular weight greater than 1000 ) was mixed with 1.0 g of dodecylbenzenesulfonic acid, and dissolved in 10 ml of chloroform with ultrasonic stirring. The obtained solution (doped polypyrrole) is filtered with a Teflon filter membrane, the filtrate is evaporated and concentrated until the mass percentage of polypyrrole is about 35 wt%, and then polyvinyl cinnamate, polypyrrole and polycinnamic acid are added The mass ratio of vinyl ester was 4:1, and magnetic stirring at room temperature was carried out for 2 hours to obtain a uniform electrospinning precursor solution; the spinning distance in step (2) was 10 cm, the spinning voltage was 14 kV, and the spinning time 20 minutes, and the collection template ...

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Abstract

The invention discloses a preparation method of a force-sensitive stretchable electro-spinning patterning conductive nanofiber membrane. The preparation method comprises the following steps that (1) a high-molecular polymer and a conductive polymer are fully mixed and dissolved in an organic solvent, and therefore a spinning precursor solution is formed; (2) a patterning collection template is used for electrostatic spinning to collect electrospunpolymer nanofibers, a patterning conductive nanofiber membrane in a non-woven mode is formed on the collection template, and is taken from the collection template, and therefore the force-sensitive stretchable electro-spinning patterning conductive nanofiber membrane can be obtained, wherein the collection template is a metal template, a semiconductor template or an insulating plastic template, and a hollow or protruding pattern structure is arranged on the collection template. The nanofiber membrane prepared through the preparation method can achieve the purposes of high conductivity, good force-sensitive performance and good stability, and can bear large-scale two-dimensional stretching strain. The preparation method is simple and low in cost, and has the good application prospect.

Description

technical field [0001] The invention relates to electrospun nanofibers, in particular to a force-sensitive stretchable electrospun patterned conductive nanofiber film and a preparation method thereof. Background technique [0002] Electrospinning is a method for preparing one-dimensional functional micro-nano fibers. Compared with traditional methods, electrospinning has the advantages of simple manufacturing equipment, low spinning cost, many types of spinnable materials, unique ease of operation and wide applicability. The prepared nanofibrous membrane material has the characteristics of large specific surface area, small pore size, good adsorption, and strong filtration ability, so it is widely used in tissue engineering, filter materials, biomedical dressings, sensors, optoelectronic devices, catalyst carriers, protective materials, etc. It has a good application prospect. During the electrospinning process, the receiver plate plays a crucial role in the aggregation mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/4382D01D5/00
Inventor 龙云泽于桂凤闫旭贺晓晓韩文鹏董瑞华贾宪生李金涛犹明浩
Owner QINGDAO UNIV
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