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With the rapid development of electronic information technology and artificial intelligence technology, electronic products tend to be smaller, softer, and more portable. Flexible wearable electronic products are becoming more and more popular in various fields.

The transparent conductive film is a material that can both conduct electricity and have high transparency in the visible light range. The transparent conductive film has a wide range of applications, involving organic light-emitting diodes, solar cells, flat panel displays, touch screens, smart glass, among many others. As a typical representative of nanomaterials, silver nanowires not only have the excellent electrical conductivity, thermal conductivity and bending resistance of metallic silver, but also have the unique size effect of nanomaterials. With the superior abilities of visible light permeability and stability, silver nanowires have great potential in photoelectric related applications, along with transparent electrodes, flexible display films, and touch screens.

There are multiple ways to preparing nano-silver wires in the laboratory today: polyol method, seed crystal method, hydrothermal method, wet chemical method, template method, etc. Having been popularly utilized as the current mainstream method for preparing nano-silver wire, polyol method, however, has a shortcoming of poor solubility, for it employs reagent PVP (polyvinylpyrrolidone) or other solvents, which is difficult to remove in the post-processing process. So that’s why in the solution of nano silver wire, other than nano silver wire itself, but there also some unpolymerized nano silver particles and a small amount of other impurities. And these impurities will seriously affect the conductive properties of the obtained nano silver wire, which greatly reduces the performance of the nano silver wire.

Based on years of experience in the field of new separation technologies, Guochu Technology (Xiamen) Co., Ltd. has applied the new separation technology to the purification of nano-silver wires, which can effectively purify nano-silver wires and remove nano silver particles and other impurities in the silver nano wire solution that have not been polymerized into silver wires.

In addition to the separation and purification of nano-silver wire solution, the new separation technology of Guochu Technology can also be applied to the concentration of nano-silver wire solution.

The main process of the new separation technology in the preparation of high-purity nanoparticles:

In the process of preparing the nano silver wire, a new type of nano silver wire special microporous filter can be exploited for purification, and high purity nano silver wire can be obtained. This new technology can on one hand alleviate the damage and prolong the operating life of the equipment,  on the other hand lower the cost of investment and operation. After separation and purification through the new technology, except improving the purity of the nano silver wire, it can also be combined with other techniques of Guochu Technology to recover the separated nano silver particles. Now one can get mature preparation of high-purity nano silver wire solutions from Guochu Technology Ltd..

Guochu Technology (Xiamen) Ltd. is a high-tech enterprise with membrane separation technology as the core and dedicated to the promotion of new separation technology. With rich experience in the application of special membranes in the pharmaceutical, chemical, food, beverage, petroleum, petrochemical, nuclear energy and other industries, Guochu Technology has the ability to research and develop membrane products and types of equipment, according to customer needs.