Anti-fogging film, preparation method and application thereof, and application of anti-fogging sticking film

Abstract

The invention discloses an anti-fogging film, a preparation method and application thereof, and application of an anti-fogging sticking film. The anti-fogging film is prepared from a PET (PolyethyleneTerephthalate) base film with a nano-porous structure and a SiOx ultrathin film attached to the nano-porous structure of the PET base film. The preparation method adopts a roll-to-roll process, and comprises an oxygen plasma etching step and a PECVD (Plasma Enhanced Chemical Vapor Deposition) coating step. The anti-fogging film is used for covering gum and a release protective film to prepare theanti-fogging sticking film. The anti-fogging sticking film is to be stuck to bathroom mirrors, automobile front windshields or instrument window glass to achieve the anti-fogging purpose. The antifogging film provided by the invention has the advantages of excellent and durable antifogging performance, easiness in secondary processing, continuous production process and large production capacity.The preparation method disclosed by the invention is applicable to the production of the antifogging film with a nano surface structure. The antifogging film is used for preparing the antifogging sticking film to be further stuck to glass to fulfill the antifogging aim.

Description

technical field [0001] The invention belongs to the technical field of film sticking, and relates to a film with an anti-fog composite layer structure, in particular to an anti-fog film, its preparation method and application, and the application of the anti-fog film. Background technique [0002] Transparent materials often have limited vision or unclear images due to condensation and fogging on the surface. The physical essence of fogging is that water vapor condenses on the surface of the material and grows into micron-scale water droplets, which scatter light. Therefore, in order to prevent the view from being restricted, some transparent materials need to be treated with anti-fog. [0003] Common anti-fog technologies can be divided into active anti-fog and passive anti-fog. Active anti-fog mainly uses mechanical wiping or electric heating to forcibly remove surface droplets. The technology is relatively mature, but it has shortcomings such as narrow application range ...

AI Technical Summary

Problems solved by technology

The organic hydrophilic coating is easy to degrade (aging) by reacting with oxygen in the air, and the pollutants are easily adsorbed on the surface of the organic hydrophilic coating, resulting in a decrease in surface energy, resulting in a rapid loss of hydrophilicity

Therefore, although some progress has been made in the anti-fog technology of hydrophilic anti-fog coatings, the use conditions and service life are limited. For applications such as bathroom anti-fog mirrors, automobile front windshields, and video surveillance system lighting windows, it is still necessary to develop new Advanced long-life anti-fog materials and processes

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