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A kind of ultrafine nano silver wire dispersion liquid and preparation method thereof

A technology of ultra-fine nano and dispersion liquid, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high repeatability, low cost, good stability, etc., and achieve increased solubility , reduce viscosity, strong wettability of solution

Active Publication Date: 2022-07-22
LUCKY HUAGUANG GRAPHICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides an ultrafine nano silver wire dispersion liquid and a preparation method thereof, which solves the problem of ultrafine preparation of nano silver wires, and the invention has less impurities, good stability, high repeatability and low cost

Method used

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  • A kind of ultrafine nano silver wire dispersion liquid and preparation method thereof
  • A kind of ultrafine nano silver wire dispersion liquid and preparation method thereof

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preparation example Construction

[0030] A preparation method of ultrafine nano silver wire dispersion, comprising the following steps:

[0031] (1) Prepare the following solution:

[0032] Solution A: prepare a polyol solution of silver nitrate, and then add water;

[0033] Solution B: prepare a polyol solution of polyvinylpyrrolidone and polyethylene glycol, and then add water;

[0034] Solution C: prepare a mixed aqueous solution of platinum chloride and sodium chloride;

[0035] D solution: prepare an aqueous or alcoholic solution of anionic surfactant;

[0036] (2) Add solution A to solution B under stirring conditions to obtain a mixed solution of AB. After the mixed solution of AB is stirred uniformly, solution D is added to the mixed solution of AB, and the mixed solution of ABD is obtained by stirring uniformly, and then added to the mixed solution of ABD. Slowly add C solution dropwise and stir to obtain ABDC mixed solution;

[0037] (3) Pour the ABDC mixed solution obtained in step (2) into the ...

Embodiment 1

[0048] This embodiment provides a method for preparing nano-silver wires with a diameter of 22-30 nm, which is as follows

[0049] Dissolve 0.068g silver nitrate in 50ml polyol solution, prepare the polyol solution of silver nitrate, then add 20ml deionized water and 1ml DMF to the aforementioned polyol solution of silver nitrate, and prepare solution A;

[0050] Dissolve 0.011g PVPk90 and 0.4g PEG4000 in 50ml polyol solution to prepare a polyol solution of polyvinylpyrrolidone and polyethylene glycol, then add 20ml deionized water to the polyol solution of polyvinylpyrrolidone and polyethylene glycol, Formulated into B solution;

[0051] Dissolve platinum chloride and sodium chloride in 1 L of deionized water to obtain a C solution with a total chloride ion concentration of 0.01 mol / L, wherein the molar concentration of platinum chloride is 0.003 mol / L, and the molar concentration of sodium chloride is 0.004 mol / L;

[0052] Dissolve 0.876g of sodium dodecyl sulfonate in 1L ...

Embodiment 2

[0057] This embodiment provides a method for preparing nano-silver wires with a diameter of 22-28 nm, which is as follows

[0058] Dissolve 0.085g of silver nitrate in 50ml of polyol solution to prepare a polyol solution of silver nitrate, then add 22.5ml of deionized water and 2.5ml of DMF to the aforementioned polyol solution of silver nitrate to prepare solution A;

[0059] Dissolve 0.14g PVPk90 and 5g PEG4000 in 50ml polyol solution to prepare a polyol solution of polyvinylpyrrolidone and polyethylene glycol, then add 22.5ml deionized water to the polyol solution of polyvinylpyrrolidone and polyethylene glycol, Formulated into B solution;

[0060] Dissolve platinum chloride and sodium chloride in 1 L of deionized water to obtain a C solution with a total chloride ion concentration of 0.1 mol / L, wherein the molar concentration of platinum chloride is 0.01 mol / L and the molar concentration of sodium chloride is 0.08 mol / L;

[0061] Dissolve 3.69g of fatty acid sodium in 1L...

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Abstract

The invention discloses a preparation method of an ultrafine nano silver wire dispersion liquid, which comprises the following steps: (1) preparing A solution, B solution, C solution and D solution; (2) preparing AB mixed solution, ABD mixed solution and ABDC mixed solution; (3) pour the ABDC mixed solution obtained in step (2) into the autoclave, seal the autoclave after bubbling with argon, and place the autoclave in a constant temperature oven for a period of time to obtain ultrafine nanometers. Silver wire dispersion. By introducing water and DMF, the present invention reduces the viscosity of polyol, increases its solubility to medicine, and directly reduces the difficulty of solution preparation; the introduction of anionic surfactant reduces the surface activity of the solution system, making the solution more wettable .

Description

technical field [0001] The invention belongs to the technical field of nanometer material production technology, and in particular relates to an ultrafine nanometer silver wire dispersion liquid and a preparation method thereof. Background technique [0002] With the rapid development of electronic technology, the electronic industry is developing towards diversification, and at the same time, more and higher performance requirements are put forward for materials. In this context, nanomaterials have received extensive attention from all walks of life due to their unique properties from traditional materials. Metal nanomaterials are an important branch of nanomaterials, and their unique properties make them widely used in various fields of life. Powders such as iron and cobalt are used in military high-performance stealth materials and shielding materials due to their special absorption of electromagnetic waves; copper nanopowders can be used as efficient catalysts or used i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B22F1/054B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00B22F9/24B22F1/07B22F1/0547B22F1/0545
Inventor 黄浩周剑飞王乐跃郭佳亮吴敏
Owner LUCKY HUAGUANG GRAPHICS
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