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Flexible micro-nanofiber stranded wire with electromagnetic performance and preparation method thereof

A technology of micro-nano fibers and magnetic nanoparticles, which is applied in the fields of nanotechnology, nanotechnology, and nanotechnology for materials and surface science, and can solve the problems of troublesome preparation of precursors, lack of electrical conductivity, and limited application scope of materials. , to achieve the effect of no obvious oxygen inhibition phenomenon, safe and environmentally friendly preparation process, and excellent tensile recovery performance.

Active Publication Date: 2016-02-17
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For UV photocuring spinning, it is currently limited to Chinese patent (CN104532367A) to obtain polyurethane micro-nano fibers by UV curing, and Chinese patent (CN101021017A) also obtains polyurethane micro-nano fibers by UV curing, but its needs and activity The diluent is mixed according to a certain ratio. The preparation of the precursor is troublesome, and the prepared fibers are generally short and irregular, and the curing is not complete. The maximum length is 1 cm, and the toughness is poor. Complex structure, and these fibers are not conductive, which limits the application range of the material
Micro-nano fibers with excellent mechanical properties and electromagnetic properties obtained by UV-cured solvent-free electrospinning have not been reported at home and abroad.

Method used

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  • Flexible micro-nanofiber stranded wire with electromagnetic performance and preparation method thereof
  • Flexible micro-nanofiber stranded wire with electromagnetic performance and preparation method thereof
  • Flexible micro-nanofiber stranded wire with electromagnetic performance and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A flexible micro-nano fiber stranded wire with electromagnetic properties, comprising the following steps:

[0036] (1) Configure the spinning precursor solution: add 8 grams of polyurethane acrylate (DR-U301, Changxing Chemical Industry Co., Ltd. (Taiwan)) and 0.4 grams of liquid photoinitiator (photoinitiator1173, 2-hydroxy- 2-methyl-1-phenyl-1-acetone, Aldrich), and 2 grams of polyaniline powder (PANI, average molecular weight Mw>15,000, Aladdin), 0.3 gram of ferric oxide powder was carried out shading stirring with a stirrer, using Heating in a water bath at 40 degrees, stirring for 3 hours, mixing the photoinitiator, urethane acrylate, polyaniline and ferric oxide evenly, and standing at room temperature for 1 day, so that the urethane acrylate is pre-polymerized to a certain extent, and the prepared Spinning precursor;

[0037] (2) Preparation of stranded wire: pour the spinning precursor solution prepared in step (1) into an aluminum spinneret with an inner diam...

Embodiment 2

[0040] A flexible micro-nano fiber stranded wire with electromagnetic properties, comprising the following steps:

[0041] (1) Configure the spinning precursor solution: add 8 grams of polyurethane acrylate (DR-U301, Changxing Chemical Industry Co., Ltd. (Taiwan)) and 0.4 grams of liquid photoinitiator (photoinitiator1173, 2-hydroxy- 2-Methyl-1-phenyl-1-propanone, Aldrich), 2g ferric oxide powder (Aladdin), and 1 gram of PEDOT solution (Aladdin), use a stirrer for shading stirring, use a 50-degree water bath to heat, stir For 1 hour, the photoinitiator, urethane acrylate and polyaniline were mixed evenly, and left to stand at room temperature for 2 days, so that the urethane acrylate was prepolymerized to a certain extent to make a spinning precursor solution;

[0042] (2) Preparation of stranded wire: Pour the prepared spinning precursor liquid into an aluminum spinneret with an inner diameter of 1.2 cm, the tip of the spinneret is 3 mm in size, and feed nitrogen into the air...

Embodiment 3

[0045] A flexible micro-nano fiber stranded wire with electromagnetic properties, comprising the following steps:

[0046] (1) Configure the spinning precursor solution: add 8 grams of polyester acrylate (CN750, Sartomer (Guangzhou) Chemical Co., Ltd.), 0.4 grams of liquid photoinitiator (photoinitiator1173, 2-hydroxy- 2-methyl-1-phenyl-1-propanone, Aldrich), 0.5g cobalt powder and 0.1 gram graphene solution (Aladdin), carry out light-shielding stirring with agitator, adopt 45 degree water bath to heat, stir 1.5 hours, make light The initiator, urethane acrylate and graphene are mixed evenly, and left to stand for 1.5 days at room temperature under natural light, so that the polyester acrylate is pre-polymerized to a certain extent to obtain a precursor solution;

[0047] (2) Preparation of stranded wire: pour the spinning precursor solution prepared in step (1) into an aluminum spinneret with an inner diameter of 1.2 cm, the tip of the spinneret is 2.5 mm in size, and nitroge...

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Abstract

The invention discloses a flexible micro-nanofiber stranded wire with electromagnetic performance and a preparation method of the flexible micro-nanofiber stranded wire. Micro-nanofiber which is used for forming the flexible micro-nanofiber stranded wire in a twining way contains a photo-curing polymer material, a conductive material and magnetic nano particles; the micro-nanofiber is prepared from a fiber spinning precursor solution during solvent-free electrospinning; an electrospinning process is carried out under a mionectic ultraviolet irradiation environment; the spinning precursor solution contains liquid prepolymer of a photo-curing material, a photoinitiator, the conductive material and the magnetic nano particles and does not contain an organic solvent. The flexible micro-nanofiber stranded wire disclosed by the invention has excellent mechanical property and good electromagnetic performance; meanwhile, during the electrospinning preparation process, the organic solvent needs not to be added, the preparation process is safer and more environmental-friendly, and the flexible micro-nanofiber stranded wire is suitable for large-scale production.

Description

technical field [0001] The invention relates to a flexible micro-nano fiber stranded wire with electromagnetic properties and a preparation method thereof, belonging to the field of preparation of nanometer materials. Background technique [0002] Electrospinning technology is a simple and effective method for preparing micro / nano fibers. Nanofibers prepared by electrospinning technology can be made into more abundant structures such as stranded wires to expand its application range. However, in the traditional electrospinning technology, most of the organic solvents will be used in the spinning process, resulting in a great waste of resources and environmental pollution, and even some organic solvents are toxic, which will damage human health. The solvent-free spinning technology does not require a solvent in the spinning process, thus solving the disadvantages of traditional solvent spinning that pollutes the environment. The current solvent-free spinning includes melt sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/16D01F6/70D01F1/10D01F1/09D01D5/00D01D1/02B82Y30/00B82Y40/00
Inventor 龙云泽于桂凤王乐贾宪生贺晓晓李金涛何宏伟
Owner QINGDAO UNIV
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