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Vanadium-based multiple coating liquid, composite film and preparation method and application thereof

A coating liquid, vanadium-based technology, applied in the direction of coating, etc., can solve the problems of low visible transmittance, difficult to stabilize regulation, etc., achieve the effect of high visible light transmission, simple process, and improve visible transmittance

Active Publication Date: 2013-03-20
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research on applying vanadium dioxide to energy-saving windows has already begun in the early 1970s, but there are still major difficulties: low visible transmittance (less than 30%) and difficult to stably control the phase transition temperature

Method used

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  • Vanadium-based multiple coating liquid, composite film and preparation method and application thereof
  • Vanadium-based multiple coating liquid, composite film and preparation method and application thereof
  • Vanadium-based multiple coating liquid, composite film and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 The preparation method of the vanadium-based composite film with a phase transition temperature of 45°C includes the following steps in sequence:

[0029] (1) put 18.18g V 2 o 5 and 100ml of ionized water were added to a 250ml beaker, and the hydrazine hydrate solution was added dropwise while stirring until a blue transparent solution was obtained. Add 20 ml of silica sol aged for 3 days to the above blue transparent solution with a concentration of 1 mol / liter. After aging for 4 hours, a stable vanadium-based multi-component coating solution was obtained.

[0030] (2) The quartz glass is cleaned by standard RCA to remove polluting organic matter, dust and metal ion impurities on the glass surface. Coating by spin coating, the spin coating speed is 500r / min, dried for 10 minutes, and then repeated 2 times.

[0031] (3) In a nitrogen atmosphere, keep the temperature at 600° C. for 1 hour, and then lower the furnace temperature naturally to obtain a vanadiu...

Embodiment 2

[0033] Example 2 The preparation method of the vanadium-based composite film with a phase transition temperature of 75°C includes the following steps in sequence:

[0034] (1) put 18.18g V 2 o 5 and 100ml of ionized water were added to a 250ml beaker, and the hydrazine hydrate solution was added dropwise while stirring until a blue transparent solution was obtained. Add 20 ml of titanium sol aged for 3 days and 1 mol / liter to the above blue transparent solution. After aging for 10 minutes, a stable vanadium-based multi-component coating solution was prepared.

[0035] (2) The quartz glass is cleaned by standard RCA to remove polluting organic matter, dust and metal ion impurities on the glass surface. Coating by spin coating, the spin coating speed is 3000r / min, drying for 10 minutes, and then repeating the operation 2 times.

[0036] (3) In a nitrogen atmosphere, keep the temperature at 600° C. for 1 hour, and then lower the furnace temperature naturally to obtain a unifo...

Embodiment 3

[0038] Example 3 A method for preparing a vanadium-based composite thin film with a phase transition temperature of 100°C includes the following steps in sequence:

[0039] (1) put 18.18g V 2 o 5 and 100ml of ionized water were added to a 250ml beaker, and the hydrazine hydrate solution was added dropwise while stirring until a blue transparent solution was obtained. 13 ml of titanium sol aged for 6 days and 1 mol / liter was added to the above blue transparent solution. Aged for 30 minutes to prepare a stable vanadium-based multi-component coating solution.

[0040] (2) The quartz glass is cleaned by standard RCA to remove polluting organic matter, dust and metal ion impurities on the glass surface. Coating by spin coating, the spin coating speed is 15000r / min, drying for 10 minutes, and then repeating the operation 2 times.

[0041] (3) In a nitrogen atmosphere, keep the temperature at 500°C for 1 hour, and then lower the furnace temperature naturally to obtain a uniform v...

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Abstract

The invention relates to a vanadium-based multiple coating liquid, a composite film and a preparation method and an application thereof, belonging to the field of film materials. In the invention, a vanadium-contained compound is used as a raw material. The preparation method comprises the following steps of: dissolving the vanadium-contained compound into an organic solvent or an inorganic solvent to be processed; then, adding a solution containing other element ions or low polymers to obtain a vanadium-based multiple coating liquid; coating the vanadium-based multiple coating liquid on a flexible or rigid substrate by adopting a common coating method; and thermally processing the substrate in an inert or reducing atmosphere to obtain a vanadium-based composite film. The invention can selectively modulate wavelength and transformation temperature and be applied to the building energy-saving field. Compared with a traditional process, the vanadium dioxide film prepared by the method not only has overhigh visible light transmission and adjustable transformation temperature, but also has the functions of preventing ultraviolet rays, sterilizing, solely cleaning, and the like by compounding other compounds.

Description

technical field [0001] The invention relates to a vanadium-based multi-component coating solution, a composite film and a preparation method and application thereof, belonging to the field of film materials. Background technique [0002] According to statistics, my country's building energy consumption has reached 30% of the total social energy consumption. With the expansion of my country's urbanization scale, the advancement of urban construction, and the improvement of people's living standards, building energy consumption will increase year by year. At present, building energy conservation has become a major issue of common concern to all sectors of society, and it is an important guarantee for sustainable economic and social development. [0003] In building energy consumption, energy consumption generated by window glass accounts for about 50% of building energy consumption, so window energy saving is the first issue that must be considered in building energy saving. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/22C04B41/50C08J7/06
Inventor 高彦峰杜靖康利涛张宗涛罗宏杰
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI