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Surface anti-fog apparatus and preparation method thereof

An anti-fog and substrate technology, applied in the field of composite materials, can solve problems such as reducing output, increasing traffic accidents, reducing visibility, etc., and achieves the effect of extending service life, preventing blurring, and good bonding strength

Inactive Publication Date: 2019-06-04
LUOYANG INST OF CUTTING EDGE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the temperature is low, the surface of the car's windshield will greatly reduce visibility due to fogging, thereby increasing the probability of traffic accidents. In addition, when fogging on the agricultural greenhouse, it will greatly reduce the light transmission of the greenhouse rate, weakening the photosynthesis of plants, thereby reducing the yield, and the problem of fogging will bring a lot of inconvenience to people's work and life. Therefore, the research on surface anti-fog devices is of great significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] The preparation method of the surface anti-fog device provided by the invention comprises the following steps:

[0017] Firstly, the base material is etched and ultrasonicated to obtain the etched base material. In this step, place the substrate (2×5cm in size) in the plasma etching chamber, the etching power is 85-95W, the etching time is 3-9min, take it out after etching, and place it in the cleaning chamber. Ultrasonic treatment is performed in the solvent for 8-15 minutes to remove impurities on the surface of the substrate, and finally placed in an oven and dried at a temperature of 90-120°C for 20-30 minutes to remove the ultrasonic cleaning solvent. Keep the surface of the substrate dry to obtain the etched substrate, wherein the substrate is one of glass, polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE) or a combination of several, the etching gas in the etching chamber is CF 4 , O 2 , HF, used to etch the substrate, ultrasonic cleaning...

Embodiment 1

[0028] Place the glass (2×5cm in size) in the plasma etching chamber, and the etching gas used is CF 4 , the etching power is 90W, take it out after etching for 5min, place it in ethanol and water for ultrasonic treatment, the treatment time is 10min, to remove the residual impurities on the glass surface, and then put it in an oven at 100℃ Dry at high temperature for 20 minutes to obtain the etched glass, place the etched glass in ethanol with a mass fraction of 1% dodecylsilane and immerse it for 24 hours, then take it out and place it in an oven at 100°C for baking Bake for 2 hours, so that the dodecylsilane can fully react with the hydroxyl groups on the glass surface, so as to prepare the surface anti-fog device.

[0029] Wettability test: The contact angle is 155°.

[0030] Anti-fog test: a little water droplets appear after 62s.

Embodiment 2

[0032] Place the glass (2×5cm in size) in the plasma etching chamber, and the etching gas used is CF 4 , the etching power is 90W, take it out after etching for 5min, place it in ethanol and water for ultrasonic treatment, the treatment time is 10min, to remove the residual impurities on the glass surface, and then put it in an oven at 100℃ Dry at high temperature for 20 minutes to obtain the etched glass, place the etched glass in ethanol with a solute mass fraction of 1% heptadecafluoroalkylsilane and immerse it for 24 hours, then take it out and place it in an oven at 100°C Medium-baking for 2 hours, so that the heptadecafluoroalkylsilane can fully react with the hydroxyl groups on the glass surface, so as to prepare the surface anti-fog device.

[0033] Wettability test: The contact angle is 165°.

[0034] Anti-fog test: a little water droplets appear after 85s.

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Abstract

The invention provides a surface anti-fog apparatus and a preparation method thereof, wherein the surface of a substrate is etched to obtain a substrate having a rough structure on the surface, and the etched substrate is immersed in a hydrophobic solution to prepare the surface anti-fog apparatus. According to the present invention, the substrate is etched by using a plasma etching method, such that the surface of the substrate is subjected to the activation treatment, the micro-nano rough structure is constructed on the surface, the hydrophobic substance can be bonded on the activated substrate surface through the chemical bond, and the bonding strength between the hydrophobic substance and the substrate is good so as to prolong the service life of the surface anti-fog apparatus; and thesurface anti-fog apparatus of the present invention can be used for vehicle windshields, motorcycle helmet lenses, bathroom lenses, door and window glasses, eyeglass lenses, agricultural greenhousesand other surfaces easily fogging in the case of temperature difference with the external environment, such that the inconvenience to daily life or production due to the blurred vision caused by the surface fogging during the use can be prevented.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a surface anti-fog device and a preparation method thereof. Background technique [0002] Transparent materials such as glass and plastic are widely used in industrial and agricultural production, daily life and military fields. These materials make our world brighter and more beautiful, and also protect our bodies. However, when the temperature is low, the surface of the car's windshield will greatly reduce visibility due to fogging, thereby increasing the probability of traffic accidents. In addition, when fogging on the agricultural greenhouse, it will greatly reduce the light transmission of the greenhouse rate, weakening the photosynthesis of plants, thereby reducing the yield, and the fogging problem will bring a lot of inconvenience to people's work and life. Therefore, the research on the surface anti-fog device is of great significance. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00C03C17/30C08J7/12C08L67/02C08L23/12C08L23/06
Inventor 不公告发明人
Owner LUOYANG INST OF CUTTING EDGE TECH
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