Double-silver low-emissivity coated glass and preparation method thereof

A low-emissivity coating and glass technology, applied in the direction of coating, etc., can solve the problems of affecting glass light transmittance, poor mechanical adhesion, and affecting product quality, so as to increase anti-infrared radiation performance, increase toughness, and improve anti-radiation performance effect

Active Publication Date: 2021-03-12
墨光新能科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, magnetron sputtering is generally used to prepare silver nanoparticles as the silver functional layer in the preparation of double-silver low-e coating glass, but there are disadvantages such as agglomeration that affect product quality.
In addition, double-silver coated glass generally has at least 9 layers, and poor mechanical adhesion between layers is also a problem.
Of course, some people use viscous polymers in glass coating, but it will greatly affect the light transmittance of glass

Method used

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  • Double-silver low-emissivity coated glass and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] S1: Glass substrate pretreatment: Polish one side of the glass substrate, clean it with deionized water and isopropanol respectively, dry it with high-purity nitrogen, and treat it with UV ozone for 20 minutes, and set it aside;

[0043] S2: SnOx layer: SnOx is used as the target, medium frequency power supply, sputtering pressure is 4×10 -3 mbar, deposited on the polished surface of a glass substrate under argon to form a SnOx layer with a thickness of 5 nm;

[0044] S3: Conductive adhesive layer: ultrasonically disperse the weighed poly-3,4-ethyldioxythiophene and sodium polystyrene sulfonate in deionized water for 15 minutes, and filter with a 0.45 μm syringe filter head, Form 1wt% dispersion liquid, the gained dispersion liquid adds acetone solvent and mixes to form mixed solution; Use spin coater, setting speed is 1000rmp, spray gun pressure is 0.24MPa, and spraying time is 15 seconds, mixed solution is sprayed on the SnOx layer of glass substrate, Place in a vacu...

Embodiment 2

[0055] S1: Glass substrate pretreatment: Polish one side of the glass substrate, clean it with deionized water and isopropanol respectively, dry it with high-purity nitrogen, and treat it with UV ozone for 45 minutes, and set aside;

[0056] S2: SiNx layer: SnOx is used as the target, medium frequency power supply, sputtering pressure is 4×10 -3 mbar, deposited on the polished surface of a glass substrate under argon to form a SiNx layer with a thickness of 20 nm;

[0057] S3: Conductive adhesive layer: ultrasonically disperse the weighed poly-3,4-ethyldioxythiophene and sodium polystyrene sulfonate in deionized water for 15 minutes, and filter with a 0.45 μm syringe filter head, Form 1.3wt% dispersion liquid, the gained dispersion liquid adds acetone solvent and mixes to form mixed solution; Use spin coater, setting speed is 1200rmp, spray gun pressure is 0.24MPa, and spraying time is 15 seconds, mixed solution is sprayed above the SnOx layer of glass substrate , placed in a...

Embodiment 3

[0068]S1: Glass substrate pretreatment: Polish one side of the glass substrate, clean it with deionized water and isopropanol respectively, dry it with high-purity nitrogen, and treat it with UV ozone for 30 minutes, and set it aside;

[0069] S2: SnOx layer: SnOx is used as the target, medium frequency power supply, sputtering pressure is 4×10 -3 mbar, deposited on the polished surface of a glass substrate under argon to form a SnOx layer with a thickness of 12 nm;

[0070] S3: Conductive adhesive layer: ultrasonically disperse the weighed poly-3,4-ethyldioxythiophene and sodium polystyrene sulfonate in deionized water for 15 minutes, and filter with a 0.45 μm syringe filter head, Form 1.15wt% dispersion liquid, the gained dispersion liquid adds acetone solvent and mixes and forms mixed solution; Use spin coater, setting speed is 1100rmp, and spray gun pressure is 0.24MPa, and spraying time is 15 seconds, and mixed solution is sprayed above the SnOx layer of glass substrate ...

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Abstract

The invention discloses double-silver low-emissivity coated glass and a preparation method thereof. The silver nanowires are used as the material of the silver functional layer to form a network structure, so that the infrared radiation loss is effectively increased, and the infrared radiation resistance of the glass is improved; acetone doping and sulfuric acid post-treatment are utilized to increase the conductivity of the conductive adhesive layer and increase dielectric loss radiation; by utilizing an electronic channel provided by the conductive adhesive layer and a three-dimensional structure of the middle dielectric layer, the radiation absorption loss and reflection loss of the glass are synergistically increased; nano-zinc oxide is uniformly distributed by utilizing the dispersitypromoting property of complex protein acid salt in the intermediate dielectric layer so that the light transmittance is improved, and sodium ions are inhibited from diffusing into the film layer in the toughening process; the damage to the surface of the glass is reduced by utilizing the super-hydrophobicity and self-repairability of the protective layer, namely, the N-boroxane-PDMS; by utilizinga three-dimensional structure formed in multiple layers, the toughness of the surface of the glass is effectively improved, and the impact strength is improved.

Description

technical field [0001] The invention relates to the technical field of coated glass, in particular to a double-silver low-emissivity coated glass and a preparation method thereof. Background technique [0002] With the continuous development of social economy, the market demand for coated glass products is increasing. The optical and thermal properties of glass can be changed through coating control to meet application requirements. Coated glass is generally divided into heat reflective coated glass and low-emissivity coated glass. Heat reflective coating is non-differential reflection, so it does not have low emissivity effect. Low-emissivity coated glass is a kind of glass that can selectively reflect the near-infrared light of the sun. It generally uses a silver coating to reduce infrared radiation, and controls multiple metal layers to control light transmittance to achieve preset performance. [0003] At present, magnetron sputtering is generally used to prepare silv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/38
CPCC03C17/38C03C17/3626C03C17/3636C03C17/3644C03C17/3649C03C17/3655C03C17/366C03C2217/211C03C2217/27C03C2217/21C03C2217/734C03C2218/154C03C2218/116C03C2218/112
Inventor 孙绪伟
Owner 墨光新能科技(苏州)有限公司
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