Preparation method for silver nanowire

A nano-silver wire and inhibitor technology, applied in the field of preparation of nano-silver wire, can solve the problems of inconvenience, poor stability and uniformity of preparation of nano-silver wire, and the existence of batches, etc., and achieve the effect of simple preparation method

Active Publication Date: 2015-11-11
深圳硕瑀科技有限公司
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Problems solved by technology

[0003] The existing nano-silver wires are mainly prepared by hydrothermal method and operated in a high-temperature autoclave. Such a production method has potential safety hazards, and there are problems such as batches, and the preparation stability and uniformity of nano-silver wires are poor.
[0004] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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  • Preparation method for silver nanowire
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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] see figure 1 , the invention provides a kind of preparation method of nano silver wire, it comprises the following steps:

[0025] Step S101 , preparing a certain amount of an aqueous solution with an inhibitor at a predetermined concentration.

[0026] In this step, the inhibitor can be FeCl 3 or Na 2 One of S or NaCl.

[0027] Step S102, prepare a PVP aqueous solution with a certain concentration, slightly heat it in a heating device to completely dissolve it, and then cool it down to room temperature.

[0028] The PVP in the present invention is Polyvinylpyrrolidone (Polyvinylpyrroli...

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Abstract

The invention provides a preparation method for a silver nanowire. The preparation method comprises the following steps: A, preparing a certain amount of an inhibitor-containing aqueous solution with predetermined concentration; B, preparing a PVP aqueous solution with certain concentration, slightly heating the PVP aqueous solution in a heating device for completely dissolving the PVP aqueous solution, and then, cooling the dissolved PVP aqueous solution to the room temperature; C, preparing a certain amount of AgNO3 aqueous solution with predetermined concentration; D, mixing solutions obtained in the step A and in the step B by pumping the solutions into a micro-fluidic chip in proportion; E, pumping the solution in the step C into the micro-fluidic chip for mixing; F, controlling the temperature of the reaction layer of the micro-fluidic chip to 150-200 DEG C for 1-5 minutes under control pressure of 15-25 bar, and collecting reaction products; and G, washing and centrifuging the reaction products. According to the preparation method, the silver nanowire with a uniform special slenderness ratio can be obtained; and the preparation method is simple, safe and reliable in preparation, and capable of realizing fast amplification and continuous type production.

Description

technical field [0001] The invention relates to the technical field of preparation of nano silver wires, in particular to a preparation method of nano silver wires. Background technique [0002] With the strong demand for touch screens from mobile terminals, wearable devices, smart home appliances and other products, as well as the fact that traditional ITO films cannot have flexible applications, and essential problems such as conductivity and light transmittance are difficult to overcome, many panel manufacturers have begun to study ITO. Alternatives - silver nanowires. The application of nano-film technology to a company's iWatch has achieved great success, showing the technical advantages of nano-silver wire products. The biggest advantage of this is: low cost, flexibility, large area, high efficiency, and it also brings new attempts and breakthroughs to the development and application of nano silver wires. [0003] The existing nano-silver wires are mainly prepared by...

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Application Information

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IPC IPC(8): B22F9/24
Inventor 张海彬黄沃林
Owner 深圳硕瑀科技有限公司
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