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High-transparent flexible hollow metal nanofiber membrane and manufacturing method thereof

A metal nano and metal fiber technology, applied in heating/cooling fabrics, textiles and papermaking, fabric surface trimming, etc., can solve the problems of high electrical conductivity, high optical transparency, restricting the preparation of inorganic hollow nanostructured materials, etc., and achieve high electrical conductivity , high optical transparency, low cost effect

Inactive Publication Date: 2015-02-25
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of inorganic nanofibers by this method requires a chemical reaction to form a shell, which restricts the preparation of some inorganic hollow nanostructure materials.
Moreover, there are few reports on the preparation of flexible hollow metal nanofiber membranes with high conductivity, high optical transparency, and infrared reflection.

Method used

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  • High-transparent flexible hollow metal nanofiber membrane and manufacturing method thereof
  • High-transparent flexible hollow metal nanofiber membrane and manufacturing method thereof
  • High-transparent flexible hollow metal nanofiber membrane and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Step 1: preparation of polymer nanofiber membrane substrate;

[0057] Under normal temperature, the polyvinyl acetate (PVAc) of 0.7g is dissolved in the first solvent of 9.3g, mix uniformly and form the electrospinning solution of 10g; The first solvent is ethanol and DMF mixed solution, wherein ethanol and DMF The mass ratio of (N,N-dimethylformamide) is 1:2.

[0058] The electrospinning solution is directly sprayed onto the aluminum foil through the electrospinning equipment to form the substrate of the polyvinyl acetate nanofiber film; the operating voltage of the electrospinning equipment is 30KV, and the distance from the injection port to the aluminum foil (ie the substrate) is 30cm , the feed rate was 0.3ml / h, and the electrospinning time was 30min.

[0059] In this embodiment, the electrospinning equipment is selected from the SD series electrostatic nanospinning equipment of Japan MECC Company.

[0060] The morphology of the prepared polyvinyl acetate nanofib...

Embodiment 2

[0072] Step 1: preparation of polymer nanofiber membrane substrate;

[0073] At room temperature, 0.8 g of polyvinyl alcohol (PVA) was mixed with 9.2 g of deionized water, and then heated to 80° C. and stirred continuously to form an electrospinning precursor solution with a certain viscosity. The electrospinning precursor solution is directly sprayed onto the aluminum foil through the electrospinning equipment, wherein the operating voltage of the electrospinning equipment is 20KV, the distance from the injection port to the substrate is 20cm, and the feed rate of the electrospinning is 0.1ml / h, the electrospinning time of the electrospinning is 20min to form a polyvinyl alcohol nanofiber membrane.

[0074] Step 2: preparation of composite fiber membrane;

[0075] At room temperature, 2.0g of aluminum trichloride AlCl 3 Mix it with 0.4 g of polyvinyl butyral (PVB) in 7.6 g of ethanol and keep stirring to prepare a 20 wt % ethanol solution of aluminum trichloride. The etha...

Embodiment 3

[0082] Step 1: preparation of polymer nanofiber membrane substrate;

[0083] At room temperature, 1.0 g of polyvinylidene fluoride (PVDF) was mixed with 9 g of ethanol and DMF, wherein the mass ratio of ethanol and DMF was 1:3, and stirred continuously to form an electrospinning precursor solution with a certain viscosity. The electrospinning precursor solution is directly sprayed onto the copper wire net through the electrospinning equipment, wherein the operating voltage of the electrospinning equipment is 25KV, the distance from the injection port to the substrate is 25cm, and the feed rate of the electrospinning is 0.2 ml / h, the electrospinning time of the electrospinning is 10min, and a polyvinylidene fluoride nanofiber membrane is formed.

[0084] Step 2: preparation of composite fiber membrane;

[0085] At room temperature, 1.0 g of chloroauric acid and 0.3 g of polyethylene oxide (PEO) were mixed in 8.7 g of deionized water, and kept stirring to prepare an aqueous sol...

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Abstract

The invention belongs to the technical field of photoelectric functional nanometer materials, and particularly relates to a high-transparent flexible metal nanofiber membrane and a manufacturing method of the high-transparent flexible metal nanofiber membrane. The manufacturing method mainly comprises the steps that firstly, polymer nanofibers are prepared through electrostatic spinning to serve as a substrate; then, metallic compounds are deposited on the surfaces of the polymer nanofibers through the electrostatic spraying method, and organic matter fiber cores are removed through pyrogenic decomposition to obtain hollow inorganic metal nanofibers; finally, a reduction reaction is carried out to obtain the high-transparent flexible hollow metal nanofiber membrane. The metal nanofiber membrane manufactured through the method has the characteristics of flexibility, high conductivity, high visible light permeability and near-infrared ray reflectivity. The transparent flexible conductive metal nanofiber membrane manufactured through the electrostatic spinning method is controllable in size, high in repeatability, simple in process, high in efficiency, low in cost and suitable for industrialized preparation.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a highly transparent flexible hollow metal nanofiber membrane and its preparation. Background technique [0002] Highly transparent metal film has excellent properties such as high conductivity, anti-electromagnetic wave, anti-static, thermal insulation, etc. It has a wide range of applications in optical devices, military and civilian fields. Compared with traditional inorganic ceramic membranes, metal thin films have obvious advantages in mechanical strength, toughness, and good thermal stability. The preparation methods of thin films mainly include liquid phase method and vapor phase deposition method. The liquid phase method mainly includes electroplating and electroless plating. Although the liquid phase method can also prepare optical-grade metal thin films, the quality of the film layer is poor, the thickness is not easy to accurately control, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4374D04H1/4382D04H1/728D06C7/04
CPCD04H1/4374D04H1/4382D04H1/728D06C7/04
Inventor 朱英孔壮鹿现永江雷
Owner BEIHANG UNIV
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