Preparation method for silver nanowire

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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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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