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Composite film glass with infrared reflection and self-cleaning function

A composite film and infrared reflection technology, which is applied in gaseous chemical plating, coating, metal material coating process, etc., can solve the problems of increasing production cost, light pollution, and increasing the difficulty of realization, and achieve the goal of improving hardness and expanding the scope Effect

Inactive Publication Date: 2005-09-28
江苏凤凰置业投资股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this leads to higher reflectance of visible light and causes light pollution
Moreover, due to the limitation of deposition rate, the deposition of thick TiO 2 For online glass belts, it increases the difficulty of realization and also increases the production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A common 5mm thick float white glass with a visible transmittance of 86% and a visible light reflectance of 9% was selected as the substrate, heated to 600°C in a test furnace, and tetraisopropyl titanate was heated and evaporated, and nitrogen was used as a carrier. The gas is carried, the evaporation temperature is 110°C, the temperature of the carrier gas is 110°C, and nitrogen is passed through another path as the carrier gas into O 2 and steam to form a mixed gas with a total flow rate of 18 standard liters / minute, wherein the tetraisopropyl titanate accounts for 5% of the total volume of the gas, O 2 accounted for 2%, water vapor accounted for 10%, reaction deposition on the glass surface to get about 20nm thick TiO 2 For the photocatalytic film, the linear speed of the glass plate is 400m / h, and the annealing is carried out according to the normal annealing temperature control of the float glass.

Embodiment 2

[0017] Use the same substrate and method as in Example 1, so it is omitted. The difference is that tetraisopropyl titanate accounts for 10% of the total volume of the gas, and a layer of 50nm TiO 2 photocatalytic film.

Embodiment 3

[0019] Select the prepared low-emissivity glass substrate, whose infrared reflectance is 81%, visible light transmittance is 83%, and visible light reflectance is 12%, put it into a test furnace and heat it to 600°C, and tetraisopropyl titanate , Trichloromonobutyltin is heated by a separate evaporator and carried with nitrogen as a carrier gas. The evaporation temperature is 110°C, the temperature of the carrier gas is 110°C, and O is introduced through another path of nitrogen as a carrier gas. 2 and water vapor to form a mixed gas with a total flow rate of 18 standard liters / minute, wherein the tetraisopropyl titanate accounts for 5% of the total volume of the gas, trichloromonobutyltin is 0.1%, and O 2 Accounted for 2%, water vapor accounted for 1%, reaction deposition on the glass surface to get about 20nm thick SnO 2 TiO 2 For the photocatalytic film layer, the linear speed of the glass plate is 400m / h.

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Abstract

The present invention discloses one kind of composite film glass with infrared reflection and self-cleaning functions. On the surface of hot float process glass, one transition SiO2 layer is first plated via CVD process, one infrared reflecting SnO2 film is then plated, and one layer of photocatalytically self-cleaning film is finally plated to form the filmed glass with both infrared reflection and self-cleaning functions.

Description

technical field [0001] The invention relates to the preparation of composite thin film glass with infrared reflection and self-cleaning functions on the surface of float glass by using an online chemical vapor deposition method. Background technique [0002] Coating one or more functional coatings on glass substrates to achieve different properties is a widely used technology at present. Low-E glass and self-cleaning glass are two application areas. The so-called low-emissivity glass is coated with SnO on the glass surface by off-line method or on-line method. 2 , Ag and other conductive film layers, so that the glass can reflect the far-infrared rays emitted by indoor objects to limit the passage of heat energy, achieve excellent heat insulation performance, and maintain a high light transmittance for visible light, allowing more than 80% of visible light to penetrate In the building, at the same time, the reflectivity of visible light is low, avoiding light pollution, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23C23C16/04
Inventor 苑同锁庞世红李西平侯英兰刘静维张国武杨振渤刘卫东卢波闫小东路佩吉
Owner 江苏凤凰置业投资股份有限公司
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