Method and device for preparing thin film through electrostatic gas spraying and thermocuring

Abstract

The invention discloses a method and device for preparing a thin film through electrostatic gas spraying and thermocuring. The device comprises a moving support platform, an electrostatic atomizationauxiliary system and a liquid supply system. The moving support platform comprises a base platform, a supporting frame, a cross beam, a ring electrode adjusting mechanism and a lifting table. The electrostatic atomization auxiliary system comprises a high-voltage electrostatic generator, an electric heating plate, a metal receiving plate, a ring electrode, an electrostatic gas spraying device, a gas conveying pipe, an electrode wire and a gas pump. The liquid supply system comprises thermocuring electrostatic mixed liquid, a liquid storage tank, a peristaltic pump and a liquid conveying pipe.According to the method and device, high-voltage electrostatic assistance is added on the premise of gas spraying, and the efficiency of preparing the thin film is improved by greatly increasing the liquid flow; and meanwhile, the method is easy to operate, the requirement for equipment is low, and the cost of preparing the thin film is reduced.

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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