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Anti-fog glass with antireflection and preparation method thereof

An anti-fog glass and glass sheet technology, applied in the field of nanomaterial preparation, can solve the problems of poor wear resistance and heat resistance of glass products, many components, large energy consumption, etc., to improve hydrophilicity and mechanical properties, The effect of wide application prospects and good anti-fog performance

Active Publication Date: 2016-04-06
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, solar cells face two key issues: one is how to improve the photoelectric conversion efficiency, and the other is how to reduce the cost of large-scale application of solar cells
However, these methods have their own limitations: method (1) needs to repeatedly spray surface-active agent on a regular basis and seems inconvenient; method (2) causes glass products to have poor abrasion resistance and heat resistance due to the use of organic substances; method ( In 3), it usually takes 7 to 10 minutes to heat and evaporate the water droplets, and the timeliness is poor, and additional energy is required, and the energy consumption is large, so it is not practical; the device of method (4) is more complicated, has many components, and the cost is high (Liu Fu Shengcong, Li Yuping National Scientific and Technological Journal of Building Materials—"Glass" Issue 3, 2002, 16-19)
[0010] In general, although the anti-fog anti-reflection glass has good application prospects, the current preparation methods all have problems of one kind or another, such as anti-reflection and anti-fog effects and durability are not ideal

Method used

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  • Anti-fog glass with antireflection and preparation method thereof
  • Anti-fog glass with antireflection and preparation method thereof
  • Anti-fog glass with antireflection and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Add 30mL of fluorosilicic acid aqueous solution with a concentration of 0.75mol / L into a 500mL container with a polytetrafluoroethylene material as the inner liner, and put the cleaned glass sheet (the size of the glass sheet is 2.5 cm (width) × 7.5 cm (length) × 0.1 cm (thickness)) placed on a four-legged support; put the glass piece together with the support into a container with polytetrafluoroethylene as the inner liner, and the glass piece is suspended horizontally in the container in the aqueous solution of fluorosilicic acid Above, cover the lid of the container, put the covered container into the hydrothermal kettle, cover the lid of the hydrothermal kettle and tighten it, and put the hydrothermal kettle into the incubator in a sealed state. The glass sheet was etched at 15°C for 48 hours, and a layer of porous structure layer with a thickness of 52nm extending from the surface of the glass sheet to the inside of the glass sheet was etched on the surface of the g...

Embodiment 2

[0049] Add 30mL of fluorosilicic acid aqueous solution with a concentration of 1.50mol / L to a 500mL container with a polytetrafluoroethylene material as the inner liner, and wash the cleaned glass sheet (the size of the glass sheet is 2.5 cm (width) × 7.5 cm (length) × 0.1 cm (thickness)) placed on the four-legged support; put the glass piece together with the support into a container with polytetrafluoroethylene as the inner liner, and the glass piece is suspended horizontally in the container in the aqueous solution of fluorosilicic acid Above, cover the lid of the container, put the container with the lid into the hydrothermal kettle, cover the lid of the hydrothermal kettle and tighten it, in a sealed state, put the hydrothermal kettle into the constant temperature box, at a temperature of The glass sheet was etched at 15°C for 48 hours, and a layer of porous structure layer with a thickness of 76nm extending from the surface of the glass sheet to the inside of the glass sh...

Embodiment 3

[0052] Add 30mL of fluorosilicic acid aqueous solution with a concentration of 1.00mol / L to a 500mL container with a polytetrafluoroethylene material as the inner liner, and wash the cleaned glass sheet (the size of the glass sheet is 2.5 cm (width) × 7.5 cm (length) × 0.1 cm (thickness)) placed on the four-legged support; put the glass piece together with the support into a container with polytetrafluoroethylene as the inner liner, and the glass piece is suspended horizontally in the container in the aqueous solution of fluorosilicic acid Above, cover the lid of the container, put the container with the lid into the hydrothermal kettle, cover the lid of the hydrothermal kettle and tighten it, in a sealed state, put the hydrothermal kettle into the constant temperature box, at a temperature of The glass sheet was etched at 5°C for 48 hours, and a layer of porous structure layer with a thickness of 48nm extending from the surface of the glass sheet to the inside of the glass she...

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Abstract

The invention relates to permeability-improving anti-fog glass and a preparation method for the same. The preparation method for the permeability-improving anti-fog glass disclosed by the invention comprises the following steps of: performing effective etching on a glass sheet with various constituents in a constant-temperature acidic atmosphere, etching a porous structure layer extending to the interior of the glass sheet from the surface of the glass sheet on the surface of the glass sheet so as to reduce the refractive index of the surface of the glass sheet and achieve a reflection-reducing and permeability-improving effect, so that the light transmittance of the glass sheet can be increased to 99% from the original 91%, and adjacent pores in the porous structure layer extending to the interior of the glass sheet are communicated or uncommunicated; and then performing an oxygen plasma treatment and an annealing treatment, thus preparing the permeability-improving anti-fog glass disclosed by the invention, wherein the surface of the permeability-improving anti-fog glass still maintains the inherent smoothness of the glass sheet. The contact angle between surface of the permeability-improving anti-fog glass and water is 5-6 degrees, so that the tension of water on the surface of the glass can be effectively reduced, and then water can rapidly spread on the surface of the glass and an anti-fog purpose can be achieved.

Description

technical field [0001] The invention belongs to the technical field of nanometer material preparation, and in particular relates to an anti-reflection anti-fog glass and a preparation method thereof. Background technique [0002] With the increasing tension of petrochemical energy, the world is paying more and more attention to energy development, and various new clean energy sources have attracted the attention of scientists from all over the world. Solar energy is an inexhaustible and inexhaustible renewable energy source for human beings. Solar power generation has become a research hotspot in recent years and is expected to become the main pillar of future power supply. However, solar cells face two key problems: one is how to improve the photoelectric conversion efficiency, and the other is how to reduce the cost of large-scale application of solar cells. In recent years, scientists have discovered through research that covering a layer of anti-reflection film on the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C15/00C03C21/00C03B25/00
Inventor 贺军辉姚琳
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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