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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, and the preparation method is not suitable for large-scale The defect of optimized preparation, so as to provide a superhydrophobic conductive polymer nanofiber with pH value response, fast and reversible transition between superhydrophobic and superhydrophilic, and convenient preparation

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

Embodiment 1

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

[0043]2) Put the polyacrylonitrile solution in step 1) into the liquid storage device of the existing spinning device, and 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 was up to 10 kV, and solidified polyacrylonitrile nanofibers with an average diameter of 100 nanometers were obtained on the receiving device.

[0044] The existing spinning device includes four parts: a high-voltage direct current power supply, a liquid feeding device, an injection device and a receiving device; A single spray head is used for spraying, and the receiving device is a rectangular glass slide placed on aluminum platinum.

[0045] 3) Add 1 mL of aniline to 50 mL of 1mol / L hydrochloric acid solution, stir and mix well; soak 3 g of polyacrylonitrile nanof...

Embodiment 2

[0053] 1) Polyethylene oxide is dissolved in chloroform to make a 10wt% polyethylene oxide solution.

[0054] 2) Put the polyethylene oxide solution in step 1) into the liquid storage device of the existing spinning device, and the electrospinning working distance (the distance between the needle tip and the receiving device) is 10 cm; turn on the high voltage power supply, adjust the spinning The wire voltage was increased to 20 kV, and cured polyethylene oxide nanofibers with an average diameter of 140 nm 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, an injection device and a receiving device; A single spray head is used for spraying, and the receiving device is a rectangular glass slide placed on aluminum platinum.

[0056] 3) Add 1mL of aniline to 50mL of 1mol / L sulfuric acid solution, stir and mix well; soak 3g of polyethylene oxide nanofibers obtained...

Embodiment 3

[0063] 1) Dissolving polyvinylpyrrolidone in ethanol to make a 12wt% polyvinylpyrrolidone solution.

[0064] 2) Pack the polyethylene oxide solution in step 1) into the liquid storage device of the existing spinning device, and the electrospinning working distance (the distance between the needle tip and the receiving device) is 12 cm; turn on the high voltage power supply, adjust the spinning The wire voltage was up to 18kV, and solidified polyvinylpyrrolidone nanofibers with an average diameter of 160 nm 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, an injection device and a receiving device; A single spray head is used for spraying, and the receiving device is a rectangular glass slide placed on aluminum platinum.

[0066] 3) Add 2 mL of aniline to 50 mL of 1mol / L sulfuric acid solution, stir and mix thoroughly; soak 3 g of polyvinylpyrrolidone nanofiber...

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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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