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

A multi-component composite, coating solution technology, applied in the coating and other directions, can solve the problems of low visible transmittance, difficult to stabilize control, etc., to achieve the effect of high visible light transmission, simple process, and improved visible transmittance

Active Publication Date: 2010-07-28
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
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Effect test

Embodiment 1

[0028] Example 1 A method for preparing a 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 Add 100ml of ionized water into a 250ml beaker, add hydrazine hydrate solution dropwise while stirring until a blue transparent solution is obtained. 20 ml of silica sol aged for 3 days with a concentration of 1 mol / liter was added to the blue transparent solution. After aging for 4 hours, a stable vanadium-based multi-element coating solution was prepared.

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

[0031] (3) In a nitrogen atmosphere, keep the temperature at 600°C for 1 hour, and then let the furnace temperature drop naturally to obtain a vanadium oxide-silicon oxide composite fi...

Embodiment 2

[0033] Example 2 A method for preparing a 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 Add 100ml of ionized water into a 250ml beaker, add hydrazine hydrate solution dropwise while stirring until a blue transparent solution is obtained. Add 20 ml of 1 mol / L titanium sol aged for 3 days to the blue transparent solution. After aging for 10 minutes, a stable vanadium-based multi-element coating solution was prepared.

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

[0036] (3) In a nitrogen atmosphere, keep the temperature at 600°C for 1 hour, and then let the furnace temperature drop naturally to obtain a uniform vanadium-based composite film with a phase transition tempera...

Embodiment 3

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

[0039] (1) Put 18.18g V 2 O 5 Add 100ml of ionized water into a 250ml beaker, add hydrazine hydrate solution dropwise while stirring until a blue transparent solution is obtained. 13 ml of titanium sol aged for 6 days at 1 mol / L was added to the blue transparent solution. After aging for 30 minutes, a stable vanadium-based multi-element coating solution was prepared.

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

[0041] (3) In a nitrogen atmosphere, keep the temperature at 500°C for 1 hour, and then let the furnace temperature drop naturally to obtain a uniform vanadium-based composite film with a phase trans...

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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-element coating solution and a composite film, and a preparation method and application thereof, and belongs 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, 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 efficiency has become a major issue of common concern to all sectors of society and an important guarantee for sustainable economic and social development. [0003] In building energy consumption, the energy consumption generated by window glass accounts for about 50% of building energy consumption. Therefore, the issue of window energy saving is the first issue that must be considered in building energy sa...

Claims

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Application Information

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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
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