A method and device for preparing a thin film by electrostatic gas spray thermal curing

Abstract

The invention discloses a method and a device for preparing a thin film by electrostatic gas spray thermal curing. The device includes a moving support platform, an electrostatic atomization auxiliary system, and a liquid supply system. The moving support platform includes a base platform, a support frame, a beam, a ring electrode adjustment mechanism, and a lifting platform. The electrostatic atomization auxiliary system includes a high-voltage electrostatic generator, an electric heating plate, a metal receiving plate, a ring electrode, an electrostatic air spray device, an air pipe, an electrode wire, and an air pump. The liquid supply system includes a thermosetting electrostatic mixed liquid, a liquid storage tank, a peristaltic pump, and a transfusion tube. The present invention adds high-voltage electrostatic assistance under the premise of gas spraying, and improves the efficiency of film preparation by greatly increasing the liquid flow rate. At the same time, the method is simple to operate, has low requirements on equipment, and reduces the cost of film preparation.

Description

technical field [0001] The invention belongs to the technical field of film preparation and electrostatic atomization, and relates to a method and a device for preparing a film by thermosetting electrostatic gas spraying. Background technique [0002] Electrostatic spray thermal curing is a new method of film preparation. It uses a high-voltage electrostatic field to act on charged droplets, which enhances the activity of the droplets, enhances the bonding strength between the droplets and the substrate, and improves the utilization of raw materials. film quality. At present, the patent CN107236939A uses the electrostatic spray pyrolysis method to prepare films, which overcomes the problems of poor bonding between the film and the substrate and low raw material utilization in the traditional spray pyrolysis method, but has high requirements for equipment, and electrostatic spray In order to achieve a good atomization effect, the liquid flow rate is required to be small, whi...

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Problems solved by technology

At present, the patent CN107236939A uses the electrostatic spray pyrolysis method to prepare films, which overcomes the problems of poor bonding between the film and the substrate and low raw material utilization in the traditional spray pyrolysis method, but has high requirements for equipment, and electrostatic spray In order to achieve a good atomization effect, the liquid flow rate is required to be small, which limits the efficiency of film preparation

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