Nanometer ceramic solar film

Abstract

The present invention relates to a nanometer ceramic solar film. According to the nanometer ceramic solar film, a firs layer titanium dioxide film, a second layer titanium nitride film and a third titanium dioxide film are sequentially plated on a surface of a substrate PET through magnetron sputtering, wherein a thickness of the substrate PET is 23-50 mum, a thickness of the first layer titanium dioxide film is 26-38 nm, a thickness of the second layer titanium nitride film is 20-26 nm, and a thickness of the third layer titanium dioxide film is 26-38 nm. The nanometer ceramic solar film of the present invention has the following characteristics that: good spectral selective permeability, high transmittance in a visible light region, and high reflectivity in an infrared region are provided, wherein infrared rays are blocked so as to reduce heat source, such that thermal insulation is achieved while transmittance on visible light is not affected; and titanium dioxide and titanium nitride have high chemical stability at a room temperature, are not easily oxidized, and do not react with oxygen, water, steam, hydrochloric acid, sulfuric acid and the like under normal circumstances, such that performances are stable, fading and discoloration can not be generated, and a service life is long.

Description

technical field [0001] The invention relates to a nano-ceramic solar film, in particular to a nano-ceramic solar film which is used for automobiles and buildings, has good heat insulation effect, good color, is not easily oxidized and has a long service life. Background technique [0002] With the development of science and technology and the arrival of the global "energy crisis" era, solar film, that is, solar control film, is constantly developing. The first generation of solar film is a coating and composite process film in the 1930s, commonly known as tea paper, which is mainly used for shading, and basically does not have the effect of heat insulation. The second generation is the dyed film in the 1960s. By adding pigments, films of different colors can be obtained, but they have no heat insulation effect, low visible light transmittance, poor clarity, and easy to fade. The third generation is the vacuum evaporation film in the early 1990s. Aluminum is evaporated on th...

AI Technical Summary

Problems solved by technology

The second generation is the dyed film in the 1960s. By adding pigments, films of different colors can be obtained, but they have no heat insulation effect, low visible light transmittance, poor clarity, and easy to fade.

The third generation is the vacuum evaporation film in the early 1990s. Aluminum is evaporated on the substrate to achieve heat insulation effect, but the visible light transmission is low and the reflection is high, which affects the comfort of vision.

The fourth generation is the metal magnetron sputtering film in the late 1990s, which uniformly deposits nickel, silver, titanium, gold and other metal materials on the PET substrate, which has good heat insulation effect, high definition, Low reflection and other characteristics, but there are disadvantages such as the metal layer is easy to oxidize, and it will block the signals of GPS and other in-vehicle wireless communication systems.

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