Colloidal solution preparation and coating device and coating method

Abstract

The invention relates to a colloidal solution preparation and film coating device and a film coating method, and belongs to the field of thin film preparation. The colloidal solution preparation and film coating device comprises a plurality of sets of component solution storage containers, first-grade component solution titration rate controllers connected with all the sets of the component solution storage containers, a colloidal solution reactor connected with an outlet of each set of the component solution titration rate controller, an intergrade component solution titration rate controller connected with an outlet of the colloidal solution reactor, a colloidal solution storage device connected with the intergrade component solution titration rate controller, a tail-grade component solution titration rate controller connected with an outlet of the colloidal solution storage device, a guide pipe connected with an outlet of the tail-grade component solution titration rate controller, and a dipping film coating device, wherein the guide pipe leads colloid into the dipping film coating device for film coating. By accurately controlling the colloidal solution preparation and film coating process, the uniformity and consistency of chemical constitutions, thicknesses and optical properties are guaranteed, and the preparation requirements of nano functional thin films are met.

Description

technical field [0001] The invention relates to a preparation device for a nano-functional thin film, in particular to a sol-gel colloidal solution preparation and coating method, belonging to the field of thin film preparation. Background technique [0002] The sol-gel method (Sol-gel) method is a nano-functional film preparation method developed in the 1960s. It uses metal alkoxide as a precursor to prepare a homogeneous sol, and then uses the sol as a raw material to impregnate glass, ceramics, metal, plastic and other substrates to form a film or spin a film to endow the substrate with special electrical and magnetic properties. , It can also improve the optical properties of the substrate and improve the chemical durability, and is widely used in the preparation of nano-functional films such as electrochromic films, photochromic films, and protective films. [0003] At present, the sol-gel coating process is to use simple glassware to prepare sol manually, and then use...

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Problems solved by technology

[0005] (2) The mechanical coating machine uses a motor to control the impregnation-lifting of the substrate, and the vibration of the motor and other components will seriously affect the uniformity of the film surface

[0006] (3) The mechanical coating machine can only complete the coating of one substrate at a time, and the film preparation efficiency is low, which seriously affects the film research process

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