A kind of preparation method of impact-resistant film for automatic access control

Abstract

The invention provides a method for preparing an impact-resistant film for automatic access control. The polycarbonate film is treated with an alkali reduction method to increase its specific surface area and improve its hygroscopicity, and to construct a nano-microgel coating on the polycarbonate. layer, has hydrophobic and antibacterial properties, and at the same time improves the adhesion to the glass substrate, modifies the carbon nanotubes, improves the dispersion of the carbon nanotubes, and sprays the silanized coating on the glass substrate, obtained by carbonization , improve the adhesion with the polycarbonate film, and then utilize the water-based polyurethane adhesive to laminate and bond the film, and finally spray a layer of hardened coating to improve the impact strength and wear resistance of the film. The invention provides The preparation method of the impact-resistant film has the advantages of simple preparation method, wide source of raw materials and low cost. At the same time, the prepared film has the characteristics of impact resistance, hydrophobicity, antibacterial, high strength and wear resistance, and can avoid glass bursting and improve safety. , is worth promoting.

Description

technical field [0001] The invention relates to the field of glass films, in particular to a preparation method of an impact-resistant film used for automatic door control. Background technique [0002] Glass is an amorphous inorganic non-metallic material. Its main components are silicon dioxide and other oxides. It is widely used in buildings for wind and light transmission. It belongs to a mixture. In order to improve the strength of glass, chemical or physical methods are usually used. , forming compressive stress on the surface of the glass, when the glass is subjected to external force, it first offsets the surface stress, thereby improving the bearing capacity and enhancing the glass's own resistance to wind pressure, cold and heat, and impact. In the field of intelligent buildings, in order to restrict the passage of people and vehicles, automatic access control systems are installed at entrances and exits. Theoretically, automatic doors should be an extension of the...

AI Technical Summary

Problems solved by technology

The glass material of the automatic door is usually tempered glass with special functions, but the tempered glass may break when the temperature difference changes greatly. Very strong, in order to avoid this phenomenon, a layer of anti-impact film will be pasted on the surface of tempered glass to reduce the impact force of tempered glass, but the adhesion between the film and the glass substrate currently on the market is poor , easy to fall off, easy to foam, and not protective. Based on this, it is the research of the glass film industry to provide a film that has good adhesion to the glass substrate, strong impact resistance, is not easy to fall off, and does not affect the light transmission performance. Hot Issues