Flexible electrochromic thermal insulating intelligent window film and preparation technology thereof

Abstract

The invention discloses a flexible electrochromic thermal insulating intelligent window film and a preparation technology thereof. The window film is prepared by adopting a vacuum physical vapor deposition process such as reel-to-reel magnetron sputtering or evaporation; the surface of a flexible substrate such as PET (Polyethylene Terephthalate) is sequentially coated with a transparent conductive film layer, an electrochromic functional film layer, a solid film electrolyte layer, an ion storage film layer and a transparent conductive film layer to obtain a flexible electrochromic functionalwindow film; a silver-containing multilayer thermal insulating window film is prepared on the surface of the flexible substrate such as the PET by adopting a reel-to-reel magnetron sputtering continuous coating technology; further, the electrochromic window film is compounded with the thermal insulating window film by using a laminating process, and finally, the multi-functional intelligent windowfilm with the characteristics of electrochromic property, thermal insulation, energy saving as well as explosion resistance and splash resistance is otained. Compared with a traditional low radiationthermal insulating window film, the flexible electrochromic thermal insulating intelligent window disclosed by the invention has the advantage that energy consumption of windows can be further reduced by 50 percent or above; compared with existing electrochromic glass products, the flexible electrochromic thermal insulating intelligent window disclosed by the invention has the advantages of lowercost, greater convenience in installation and higher safety; compared with an existing research and development technology of the flexible electrochromic film, the preparation technology has the advantages of more excellent stability, more excellent energy-saving and thermal insulation characteristics, higher suitability for batch production of large-size window films and the like.

Description

technical field [0001] The invention belongs to the field of new material preparation, and relates to an energy-saving smart film applied on window glass in fields such as buildings and automobiles, in particular to a flexible electrochromic heat-insulating smart window film and a preparation process thereof. Background technique [0002] Building energy conservation is a key issue in the field of environmental protection today. Building energy consumption has accounted for more than 30% of the total energy consumption of human society, and the energy lost through door and window glass accounts for more than 50% of the total energy consumption of buildings. Therefore, the development of new energy-saving door and window glass materials has become the most effective solution to reduce building energy consumption. At present, the technologies widely used to reduce the energy consumption of door and window glass mainly include insulating glass, low-E low-E coated glass and low-...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a film system structure of flexible electrochromic heat-insulating smart window film, in which each layer of functional film is made of high-stability solid inorganic material to solve the stability problem of the existing similar technology; at the same time provide A roll-to-roll manufacturing process of electrochromic thermal insulation window film suitable for large-scale continuous production is developed to solve the problem that the existing similar technology is difficult to realize the application of large-scale flexible electrochromic film

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