Preparing method of glass antifogging coating

Abstract

The invention discloses a preparing method of a glass antifogging coating, and belongs to the technical field of coating material preparations. The preparing method comprises the steps of firstly preparing an ethanol solution and methyltrimethoxysilane to a silane coupling agent solution, then preparing nanosilicon dioxide to nanosilicon dioxide sol, conducting a reaction between the nanosilicon dioxide sol and the silane coupling agent solution to prepare reaction liquid, using acetone to scrub a glass base material, afterwards, conducting ultrasonic cleaning and etching processing on the glass base material, conducting soaking and curing processing on the glass base material by using the reaction liquid to obtain a glass after coating processing, then using 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane and absolute ethyl alcohol to soak the glass, and finally taking out the glass and drying the glass so as to obtain the glass antifogging coating. According to the preparing method of the glass antifogging coating, the glass antifogging coating has a strong hydrophobic characteristic and a strong self-cleaning ability; meanwhile, the coating has good durability and strong adhesive force; in addition, the coating good antifogging performance, under the vapor environment, completely no fogdrop adheres to the surface of the coating glass, thus the use value of the glass is sharply improved, and the glass antifogging coating has a broad application prospect.

Description

technical field [0001] The invention discloses a method for preparing a glass anti-fog coating, which belongs to the technical field of coating material preparation. Background technique [0002] Atomization of glass refers to the fact that water vapor in the air reaches saturation when cooled to its dew point, and condenses on the surface of glass products to form tiny droplets. These droplets refract and scatter light, resulting in the opacity of glass. The fogging of building glass windows, bathroom mirrors, and glasses will bring a lot of inconvenience to life, and the fogging of car windshields will seriously endanger driving safety. [0003] For this phenomenon, the more commonly used methods on the market are: (1) spraying surfactant method to make the glass surface hydrophilic; (2) coating polymer film method to make the glass surface hydrophobic; (3) installing a heating device to make the glass surface hydrophilic; The surface temperature is higher than the dew po...

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is to provide a glass anti-fog coating for the problems of poor self-cleaning ability, poor anti-fog effect and durability, poor coating adhesion and easy peeling off of the existing glass anti-fog coating The preparation method, the method first prepares the silane coupling agent solution with the ethanol solution and methyltrimethoxysilane, then prepares the nano silica sol with the nano silicon dioxide, and reacts it with the silane coupling agent solution to obtain the reaction liquid , and then wipe the glass substrate with acetone, ultrasonically clean it and perform etching treatment, then soak it in the reaction solution and cure it to obtain the glass after coating treatment, and then use tridecafluorooctyltrimethoxysilane, no Soak in water and ethanol, and finally take out and dry to get the glass anti-fog coating. The glass anti-fog coating of the present invention has strong hydrophobic characteristics, strong self-cleaning ability, and at the same time, the coating has good durability and strong adhesion. The coating has good anti-fog performance. In the water vapor environment, the surface of the coated glass is completely free of fog droplets, which greatly improves the use value of the glass and has broad application prospects.