Preparation method of nano antimony tin oxide transparent insulation film

Abstract

The invention discloses a preparation method of a nano antimony tin oxide (ATO) transparent insulation film. The method comprises following steps: 1) preparation of a nano ATO slurry: mixing an ATO nanopowder and a dispersant according to proportion and stirring thoroughly, and regulating a pH value to prepare the nano ATO slurry; 2) preparation of a nano ATO thermal insulation coating: mixing the nano ATO slurry and aqueous polyurethane, adjusting a pH value, adding a leveling agent, a defoaming agent and a thickener for dispersion, so as to prepare a nano thermal insulation coating; and 3) preparation of a transparent insulation film: immersing a clean glass substrate in the prepared nano thermal insulation coating liquid, and preparing a transparent film on the glass substrate by using a spin coating method / Czochralski method / bar coating method. The nano ATO transparent thermal insulation film prepared by the method provided by the invention has high visible light transmittance and infrared barrier property, and is suitable for building thermal insulation glass. The film preparation process is simple, environment-friendly, low-cost, and can form a uniform film with large area.

Description

technical field [0001] The invention belongs to the technical field of nano heat-insulating glass for buildings, in particular to a preparation method of a nano-tin antimony oxide transparent heat-insulating film. Background technique [0002] With the increasing tension of energy resources, my country has formulated a low-carbon economic development model based on low energy consumption, low pollution, and low emissions. Building energy conservation is an important part of the development of low-carbon economic industries. At present, building insulation glass Mainly include insulating glass, vacuum glass, Low-E glass, solar control glass and film glass, etc. The price of these glasses is difficult to apply on a large scale due to the complicated process and high price. Therefore, the development of high-quality transparent insulating glass with simple process and low cost is still One of the hotspots of research. Materials suitable for the preparation of transparent insulat...

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Problems solved by technology

[0003] The methods for preparing nano-ATO thin films in the prior art include: DC magnetron sputtering method, chemical vapor deposition method, electron beam evaporation method and sol-gel method, etc. These preparation methods have high equipment requirements, difficulty in controlling the particle size of the film, and It is a simple and convenient method to apply nano-ATO powder directly to the coating, and fully disperse it in the water-based solvent through ball milling, ultrasonic, and high-speed stirring to prepare the ATO nano-coating and then coat the film. Method for preparing heat-shielding film with properties consistent with coating

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