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Near-infrared filtration energy-saving glass based on bionic moth-eye micro-nano structure

A micro-nano structure, energy-saving glass technology, used in building components, layered products, coatings, etc., can solve the problems of sacrificing visible light transmittance, not having the selective transmittance of solar radiation energy, etc., to reduce energy consumption , The effect of improving the transmittance and reducing the cooling energy consumption

Active Publication Date: 2020-03-24
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a near-infrared filtering energy-saving glass based on the bionic moth-eye micro-nano structure, which is a kind of energy-saving glass that utilizes the anti-reflection of the moth-eye micro-nano structure and the comprehensive optical performance when multiple materials are combined. Energy-saving glass that selectively transmits solar radiation energy, which is used to solve the problem that the existing energy-saving glass does not have the selective transmission of solar radiation energy, and the reflectivity of the near-infrared region in the application of the existing bionic moth-eye micro-nano structure Only about 80%, the problem of sacrificing the light transmittance of visible light

Method used

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  • Near-infrared filtration energy-saving glass based on bionic moth-eye micro-nano structure

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Embodiment 1

[0022] Embodiment 1: as Figure 1-Figure 3 As shown, the near-infrared filtering energy-saving glass based on the bionic moth-eye micro-nano structure described in this embodiment includes a bionic moth-eye micro-nano structure layer 1 and a composite material structure layer 2, wherein the composite material structure layer 2 adopts SiO 2 、Al 2 o 3 and Ag three materials to make a multi-layer film structure, which is divided into seven layers, arranged from top to bottom, the first layer of SiO 2 The thickness of the film is 1 μm, the second layer of Al 2 o 3 The thickness of the film is 0.03μm, the thickness of the third layer of Ag film is 0.008μm, the fourth layer of Al 2 o 3 The thickness of the film is 0.008μm, and the fifth layer of SiO 2 The thickness of the film is 0.07μm, the thickness of the sixth layer of Ag film is 0.008μm, the seventh layer of Al 2 o 3 The thickness of the film is 0.03 μm; the height of the conical moth-eye micro-nano structure is 0.15 μm...

Embodiment 2

[0024] Embodiment 2: as figure 1 , figure 2 and Figure 4 As shown, the near-infrared filtering energy-saving glass based on the bionic moth-eye micro-nano structure described in this embodiment includes a bionic moth-eye micro-nano structure layer 1 and a composite material structure layer 2, wherein the composite material structure layer 2 adopts SiO 2 、Al 2 o 3 and Ag three materials to make a multi-layer film structure, which is divided into seven layers, arranged from top to bottom, the first layer of SiO 2 The thickness of the film is 2 μm, the second layer of Al 2 o 3 The thickness of the film is 0.07μm, the thickness of the third layer of Ag film is 0.013μm, the fourth layer of Al 2 o 3 The thickness of the film is 0.013μm, the fifth layer of SiO 2 The thickness of the film is 0.13 μm, the thickness of the sixth layer of Ag film is 0.013 μm, the seventh layer of Al 2 o 3 The thickness of the film is 0.07 μm; the height of the conical moth-eye micro-nano stru...

Embodiment 3

[0026] Example 3 as figure 1 , figure 2 and Figure 5 As shown, the near-infrared filtering energy-saving glass based on the bionic moth-eye micro-nano structure described in this embodiment includes a bionic moth-eye micro-nano structure layer 1 and a composite material structure layer 2, wherein the composite material structure layer 2 adopts SiO 2 、Al 2 o 3 and Ag three materials to make a multi-layer film structure, which is divided into seven layers, arranged from top to bottom, the first layer of SiO 2 The thickness of the film is 1.5 μm, the second layer of Al 2 o 3 The thickness of the film is 0.05 μm, the thickness of the third layer of Ag film is 0.01 μm, the fourth layer of Al 2 o 3 The thickness of the film is 0.01 μm, and the fifth layer of SiO 2 The thickness of the film is 0.1 μm, the thickness of the sixth layer of Ag film is 0.01 μm, the seventh layer of Al 2 o 3 The thickness of the film is 0.05 μm; the height of the conical moth-eye micro-nano str...

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Abstract

Belonging to the technical field of optical and nano materials, the invention discloses a near-infrared filtration energy-saving glass based on a bionic moth-eye micro-nano structure, and solves the problem that existing energy-saving glass does not have selective transmittance to solar radiation energy. According to the technical key point, the energy-saving glass includes a bionic moth-eye micro-nano structure layer and a composite material structure layer, wherein the composite material structure layer is a multi-layer film structure made of three materials, namely SiO2, Al2O3 and Ag; wherein the composite material structure layer totally falls into seven layers from top to bottom, i.e. a first SiO2 film layer, a second Al2O3 film layer, a third Ag film layer, a fourth Al2O3 film layer,a fifth SiO2 film layer, a sixth Ag film layer and a seventh Al2O3 film layer, and the bionic moth-eye micro-nano structure layer covers the first SiO2 film layer of the composite material structurelayer. The prepared energy-saving glass has very good near-infrared reflectivity and very high visible light transmittance, and the contribution rate of the glass to indoor refrigeration energy savingreaches 34%.

Description

technical field [0001] The invention relates to an energy-saving glass, in particular to a near-infrared filtering energy-saving glass based on a bionic moth-eye micro-nano structure, which belongs to the technical field of optics and nanometer materials. Background technique [0002] Today, global warming and energy crisis have become important issues restricting human development, among which energy conservation and emission reduction is an important way to solve the above problems. People consume about half of the world's energy in residential buildings, of which about 50% is used for building cooling. Therefore, how to effectively reduce refrigeration energy consumption has become an important topic of energy conservation and emission reduction. [0003] As we all know, the vast majority of energy on the earth comes from solar radiation, and the main reason for the increase in temperature in buildings is also solar radiation. The energy of solar radiation is mainly con...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B9/04B32B3/08B32B33/00
CPCB32B3/085B32B9/00B32B9/04B32B33/00B32B2255/28B32B2307/40B32B2419/00
Inventor 王富强张鑫平
Owner HARBIN INST OF TECH AT WEIHAI