Ultra-hydrophobic conductive macromolecular nano fiber and method for preparing same and use thereof

A conductive polymer and nanofiber technology, which is used in conductive/antistatic filament manufacturing, fiber processing, fiber chemical characteristics, etc. It can solve the problem of long time for temperature-responsive reversible wettability conversion, and the preparation method is not suitable for large-scale preparation, etc. problems, to achieve long-term stability and repeatability, low cost, and easy operation.

Inactive Publication Date: 2006-12-20
INST OF CHEM CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the existing temperature-responsive polymer film. When realizing the reversible conversion of superhydrophobicity and superhydrophilicity, the time for reversible wettability conversion of temperature response is relatively long,

Method used

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  • Ultra-hydrophobic conductive macromolecular nano fiber and method for preparing same and use thereof
  • Ultra-hydrophobic conductive macromolecular nano fiber and method for preparing same and use thereof
  • Ultra-hydrophobic conductive macromolecular nano fiber and method for preparing same and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1,

[0042] 1) Dissolve polyacrylonitrile in N,N-dimethylformamide to prepare an 8wt% polyacrylonitrile solution.

[0043]2) Put the polyacrylonitrile solution in step 1) into the liquid storage device of the existing spinning device, the electrospinning working distance (the distance between the needle tip and the receiving device) is 8cm; turn on the high-voltage power supply and adjust the spinning The voltage is 10kV, and the cured polyacrylonitrile nanofibers with an average diameter of 100 nanometers are obtained on the receiving device.

[0044] The existing spinning device includes four parts: a high-voltage direct current power supply, a liquid feeding device, a spraying device and a receiving device; the output voltage of the high-voltage direct current power supply used is 0-30Kv, the liquid feeding device is fed by gravity, and the spraying device A single jet nozzle is used for jetting, and the receiving device is a rectangular glass slide placed on alu...

Example Embodiment

[0052] Example 2,

[0053] 1) Dissolve polyoxyethylene in chloroform to prepare a 10wt% polyoxyethylene solution.

[0054] 2) Put the polyethylene oxide solution in step 1) into the liquid storage device of the existing spinning device, the electrospinning working distance (the distance between the needle tip and the receiving device) is 10cm; turn on the high-voltage power supply and adjust the spinning The silk voltage was up to 20kV, and the cured polyethylene oxide nanofibers with an average diameter of 140 nanometers were obtained on the receiving device.

[0055] The existing spinning device includes four parts: a high-voltage direct current power supply, a liquid feeding device, a spraying device and a receiving device; the output voltage of the high-voltage direct current power supply used is 0-30Kv, the liquid feeding device is fed by gravity, and the spraying device A single jet nozzle is used for jetting, and the receiving device is a rectangular glass slide placed on a...

Example Embodiment

[0062] Example 3.

[0063] 1) Dissolve polyvinylpyrrolidone in ethanol to prepare a 12wt% polyvinylpyrrolidone solution.

[0064] 2) Put the polyethylene oxide solution in step 1) into the liquid storage device of the existing spinning device, the electrospinning working distance (the distance between the needle tip and the receiving device) is 12cm; turn on the high-voltage power supply and adjust the spinning The filament voltage was up to 18kV, and cured polyvinylpyrrolidone nanofibers with an average diameter of 160 nanometers were obtained on the receiving device.

[0065] The existing spinning device includes four parts: a high-voltage direct current power supply, a liquid feeding device, a spraying device and a receiving device; the output voltage of the high-voltage direct current power supply used is 0-30Kv, the liquid feeding device is fed by gravity, and the spraying device A single jet nozzle is used for jetting, and the receiving device is a rectangular glass slide pl...

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Abstract

The invention discloses an ultra-hydrophobic conductive macromolecular nanometer fiber, which is characterized by the following: the fiber possesses coaxial nanometer fiber of core case structure; the core is 80-300 nanometer diameter polymerization fiber, whose coaxial case is 80-200 nanometer conductive macromolecular layer of 20-40 nanometer conductive macromolecular grain; the polymerization is polyacrylonitile, ethane polyepoxide, polythene pyrrolidone, polymethyl methacrylate, polyvinyl alcohol, cellulose acetate, polycarbonate; the conductive macromolecular is polyaniline, polythiofuran or polypyrrole. The invention utilizes electrostatic spinning and original position chemical oxidized polymeric method, which possesses reversible conversion property of ultra-hydrophobic and ultra-hydrophilic pH value respond in the intelligent microfluid switch, controllable separating technology, electromagnetic screen and sensor.

Description

technical field [0001] The invention belongs to the field of functional materials, and in particular relates to a superhydrophobic conductive polymer nanofiber, which has the characteristics of fast and reversible transition between superhydrophobicity and superhydrophilicity in response to pH value, and utilizes electrospinning and in-situ A preparation method of the superhydrophobic conductive polymer nanofiber that can be produced on a large scale by chemical oxidation polymerization technology, and its application. Background technique [0002] The special structure and excellent physical and chemical properties of conductive polymers make it a hot spot in material science research. As one of the irreplaceable emerging functional materials, conductive polymers are used in energy, optoelectronic devices, information, sensors, molecular wires and molecular devices. As well as electromagnetic shielding, metal anti-corrosion and stealth technology, it has extensive and attra...

Claims

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Application Information

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IPC IPC(8): D01F1/09D01F6/18D01F6/66D01F6/58D01F6/74D01D5/00
Inventor 朱英张敬畅翟锦郑咏梅万梅香江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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