Reel-to-reel equipment for preparing nano-silver wire electrode film

Abstract

The invention discloses reel-to-reel equipment for preparing a nano-silver wire electrode film. The reel-to-reel equipment comprises a vacuum chamber, a first unwinding roller, a first winding roller, a second unwinding roller, a second winding roller, a nano-silver wire groove mold, a Meyer rod group, a high-molecular polymer groove mold, an impressing roller, a separating roller and a coating roller, and the unwinding rollers and the winding rollers are both arranged in a roller replacing device. According to the device, replacement of the rollers can be achieved under the condition that the vacuum chamber is not exposed to the atmosphere. A PI flexible film coiled material is loaded on the first unwinding roller, and the coating roller, the MeiYer rod group, the impressing roller, a nano-silver wire recycling pool and the first winding roller are sequentially arranged on the downstream portion of the first unwinding roller. A PET flexible film coiled material is loaded on the second unwinding roller, and the high-molecular polymer groove mold, the impressing roller, the separating roller and the second winding roller are sequentially located on the downstream of the second unwinding roller. The PI flexible film and the PET flexible film are subjected to impressing compounding at the impressing roller and an impressing supporting roller, are separated at the separating roller and are finally wound by the first winding roller and the second winding roller respectively.

Description

technical field [0001] The invention belongs to the technical field of photoelectric thin films, and in particular relates to a roll-to-roll equipment for preparing nano-silver electrode thin films. Background technique [0002] Transparent conductive films are widely used as window electrodes in the fields of display devices, photoelectric thin film devices, and thin film solar cells. Among the current transparent conductive films, indium tin oxide (ITO) films are in a monopoly position in applications such as flat panel displays and various electronic devices due to their high transparency, high conductivity and low surface roughness. However, the ITO film itself has shortcomings such as ceramic brittleness, easy damage to bending, and high reaction temperature, which limits its application in flexible displays and small photoelectric thin film devices. In recent studies, silver nanowires (AgNWs) materials are expected to become the most potential substitutes for ITO cond...

AI Technical Summary

Problems solved by technology

This roll replacement method will expose the core area of ​​the process in the vacuum chamber to the atmosphere for a long time, which will have a serious impact on the stability of equipment and the quality of flexible coating products

Especially for those large-scale high-end flexible film products that have strict requirements on the atmosphere of the vacuum chamber in the preparation process, it will take a long time to restore the vacuum environment and process atmosphere in the large vacuum chamber after the roll is replaced , thereby affecting the production efficiency. In addition, the destruction and restoration of the ambient atmosphere in the vacuum chamber will also affect the consistency of product quality.

These factors will restrict the industrialization, large-scale and batch production process of nano-silver electrode film preparation

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