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Method for preparing silver nanofibers by using assist of organic halide and application

A technology of organic halides and silver nanofibers, applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problems of long time, unfavorable industrial production, time-consuming and laborious, etc., and achieve easy operation, Easy to realize industrialized production and simple technological process

Active Publication Date: 2019-11-22
昆明贵研新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this preparation method takes a long time, is time-consuming and laborious, and is not conducive to industrialized production

Method used

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  • Method for preparing silver nanofibers by using assist of organic halide and application
  • Method for preparing silver nanofibers by using assist of organic halide and application
  • Method for preparing silver nanofibers by using assist of organic halide and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A method for preparing silver nanofibers assisted by organic halides, specifically including the following steps:

[0062] (1) 1.122g silver acetate, 0.075g polyvinylpyrrolidone-polyethylene glycol diblock copolymer (molecular weight M w =30000) and 0.025g of 6-bromohexyltriethylammonium bromide were respectively dissolved in diethylene glycol to form solutions a, b, and c for use;

[0063] (2) Mix the solutions a-c uniformly under stirring conditions of 0°C, the stirring speed is 100r / s, and the stirring time is 30min to obtain the solution d, which is ready for use;

[0064] (3) The solution d is allowed to stand and react for 1 min at room temperature and 25°C; the reaction solution e is obtained, which is ready for use;

[0065] (4) Set the reaction temperature of solution e to 180°C, and keep it at this temperature for 20 minutes to obtain silver nanofiber solution f;

[0066] (5) The solution f is subjected to deionized water and absolute ethanol for multiple centrifugal wa...

Embodiment 2

[0068] A method for preparing silver nanofibers assisted by organic halides, specifically including the following steps:

[0069] (1) 1.132g silver carboxylate, 14.915g polyvinylpyrrolidone-polyethylene glycol diblock copolymer (molecular weight M w = 3000000) and 0.125g of 3-methylpropyl ammonium bromide were dissolved in diglycerol to form solutions a, b, and c for use;

[0070] (2) Mix the solutions a-c uniformly under stirring conditions at 25°C, the stirring speed is 40r / s, and the stirring time is 120min, to obtain solution d, which is ready for use;

[0071] (3) The solution d is allowed to stand and react for 0.5h at room temperature and 30°C; the reaction solution e is obtained, which is ready for use;

[0072] (4) Set the reaction temperature of solution e to 160°C, and keep it at this temperature for 70 minutes to obtain silver nanofiber solution f;

[0073] (5) The solution f is subjected to deionized water and absolute ethanol for multiple centrifugal washing and purificati...

Embodiment 3

[0075] A method for preparing silver nanofibers assisted by organic halides, specifically including the following steps:

[0076] (1) 1.232g silver acetylacetonate, 1.263g polyvinylpyrrolidone-polyethylene glycol diblock copolymer (molecular weight M w =90000) and 0.120g of 1-methylpentyl zinc bromide were respectively dissolved in dipropylene glycol to form solutions a, b, and c for use;

[0077] (2) Mix the solutions a-c evenly under stirring conditions of 30°C, the stirring speed is 50r / s, the stirring time is 1min, and the solution d is obtained for use;

[0078] (3) The solution d is allowed to stand for 24 hours at 0°C for 24 hours; the reaction solution e is obtained for use;

[0079] (4) Set the reaction temperature of solution e to 250°C, and keep it at this temperature for 10 minutes to obtain silver nanofiber solution f;

[0080] (5) The solution f is subjected to deionized water and absolute ethanol for multiple centrifugal washing and purification treatments, and finally si...

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Abstract

The invention discloses a method for preparing silver nanofibers by using assist of organic halide and application, and belongs to the field of one-dimensional nanomaterial preparation. The preparation method specifically comprises the following steps: dissolving a silver salt, an organic protective agent and an organic halide in mono-condensation or multi-condensation polyhydric alcohol to form asolution; then, mixing the solution uniformly and reacting for a period of time at a fixed temperature so as to finally obtain a silver nanofiber solution; and after separation and purification of the silver nanofiber solution, obtaining silver nanofibers with the averages diameter of 5 to 50 nm and the average length of 5 to 100 microns. According to the preparation method disclosed by the invention, high temperature or high voltage is not needed, protective gas does not need to be introduced additionally, the whole technological process is easy to operate, the reaction conditions are relatively mild, and batch production is easily realized; and the prepared silver nanofibers are small in diameters, high in draw ratio and high in uniformity, and can be taken as a key conducting materialfor preparing flexible transparent conducting films.

Description

Technical field [0001] The invention belongs to the field of preparation of one-dimensional nano materials, relates to a method for preparing silver nanofibers assisted by organic halides, and also relates to an application of preparing silver nanofibers assisted by organic halides in preparing flexible transparent conductive films. Background technique [0002] At present, among highly transparent and conductive electronic components, the most widely used are indium tin oxide (ITO) sputtered plastic films, although these films have relatively low resistivity. However, it has high brittleness and poor flexibility, so it is easily destroyed by external bending force. Indium in ITO film is a rare metal, and its content in global reserves is small, and the development and purification cost is relatively high. Its prices continue to soar. With the development of technology and society, due to the above shortcomings, ITO films have been unable to meet people's needs for flexible elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F1/00H01B5/14B82Y40/00B82Y30/00
CPCB22F9/24H01B5/14B82Y40/00B82Y30/00B22F1/0547
Inventor 杨宏伟原禧敏
Owner 昆明贵研新材料科技有限公司