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A kind of superhydrophilic agent, preparation method and superhydrophilic vehicle window glass

A hydrophilic agent and super-hydrophilic technology, applied in coatings and other directions, can solve the problems of increasing driving risk, obstructing the driver's sight, and high light transmittance, so as to improve the micro-roughness of the coating and high visible light transmission The effect of high efficiency and simple production process

Active Publication Date: 2020-01-17
FUYAO GLASS IND GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of silicate laminated glass has a high light transmittance, especially in the summer high temperature period, when high-intensity visible light passes through the laminated glass of the front windshield of the car, which not only hinders the driver's sight, causes visual fatigue, causes dizziness, and increases the Driving risk. Moreover, strong infrared heat radiation will also increase the temperature inside the car and increase the power load brought by the car air conditioner, which is not conducive to the sustainable development of cars in the direction of energy saving and environmental protection.

Method used

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  • A kind of superhydrophilic agent, preparation method and superhydrophilic vehicle window glass
  • A kind of superhydrophilic agent, preparation method and superhydrophilic vehicle window glass

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preparation example Construction

[0039] The present invention also provides a kind of preparation method of above-mentioned superhydrophilic agent simultaneously, it is characterized in that, comprises the steps:

[0040] Step 1: preparing tin dioxide nanoparticles;

[0041] Step 2: Mix a dispersant with a volume ratio of 4 to 7:1 and a dilute acid solution to form a dispersion, then add 2 to 5 wt% carbon nanotube powder to make the pH of the solution 3 to 5, and then Stir at ~30°C for 1-3 hours, and mix evenly to obtain a carbon nanotube dispersion;

[0042] Step 3: Add 0.08-0.33 wt% tin dioxide nanoparticles to the carbon nanotube dispersion, then add 0.2-0.8 wt% polyvinyl alcohol, and stir for 1-2 hours to obtain superhydrophilic agent. Wherein, wt% is weight percentage, h is hour, and the weight percentage of each component mentioned above refers to its weight ratio that accounts for the superhydrophilic agent that finally makes.

[0043] Further, the preparation method of the tin dioxide nanoparticles...

Embodiment 1

[0050] Embodiment one: the preparation of superhydrophilic agent

[0051] (1) Preparation of tin dioxide nanoparticles. Add 3g of cetyltrimethylammonium chloride to 10ml of n-pentane, then add 5ml of n-pentanol, stir and heat to 60°C to completely dissolve cetyltrimethylammonium chloride, then add 6wt% of Add 0.3ml of polyvinyl alcohol aqueous solution and cool down to 30°C. Then 0.5ml of 8wt% tin tert-butoxide / tert-butanol solution was added dropwise, reacted at 30°C for 2h, added 12ml of ethanol to break the emulsion, ultrasonicated for 2min, and centrifuged at 5000rpm for 10min. After centrifugation, the solid was washed with 6.5ml of carbon tetrachloride, centrifuged, and freeze-dried at -45°C for 6 hours to obtain the product.

[0052] For the above-mentioned process of preparing tin dioxide nanoparticles, please refer to the "preparation method of tin dioxide nanoparticles" disclosed in Chinese patent CN105819497A for the specific preparation method. In order to meet ...

Embodiment 2

[0055] Embodiment two: the making of super hydrophilic glass

[0056] (1) cleaning. Take a glass substrate, clean it with detergent and deionized water, then wash it with acetone, ethanol, and water for 10 minutes, then wash it with deionized water, and dry it to obtain a clean glass substrate.

[0057] (2) Spin-coat the super-hydrophilic coating prepared in Example 1 on the surface of the glass substrate. Take 0.3ml of superhydrophilic agent and add it dropwise to the center of the glass, spin-coat at 2000rpm for 2min, place it in an oven at 60°C for 5min, and then cool it naturally. Then put the glass substrate in a heating furnace, raise the temperature to 120°C at 2°C / min, keep it for 1h, then raise the temperature to 500°C at 4°C / min, keep it for 2h, and then cool it down to room temperature naturally to obtain superhydrophilic Glass.

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Abstract

The invention relates to the technical field of hydrophilic glass, and particularly relates to a super-hydrophilic agent. The super-hydrophilic agent is characterize by comprising the following components: 0.08-0.33wt% of tin dioxide nano particles, 2-5wt% of carbon nano tube powder, 0.2-0.8wt% of polyvinyl alcohol, and the balance of a dispersion liquid; and the carbon nano tube powder is a powdery single-walled carbon nano tube or multi-walled carbon nano tube, and the tin dioxide nano particles adhere to the surface of the carbon nano tube. The invention also provides a preparation method for the super-hydrophilic agent and super-hydrophilic vehicle window glass which is provided with a super-hydrophilic coating formed by the super-hydrophilic agent. The super-hydrophilic agent has the advantages of being high in visible light transmittance, being capable of absorbing infrared radiation, and having good super-hydrophilic characteristics under non-illumination conditions.

Description

Technical field: [0001] The invention relates to the technical field of hydrophilic glass, in particular to a superhydrophilic agent, a preparation method of the superhydrophilic agent and a superhydrophilic vehicle window glass provided with a superhydrophilic coating. Background technique: [0002] The wettability of material surfaces has always been the focus of academic and industrial circles. Superhydrophilic and superhydrophobic, as two extremely special wetting phenomena, have attracted extensive research by domestic and foreign scholars in recent years. In general, a superhydrophobic surface refers to a surface with a solid-liquid contact angle greater than 150°. Conversely, a superhydrophilic surface is one in which liquids can spread completely, resulting in a contact angle equal to or close to 0°. Compared with superhydrophobic research, there are fewer studies on superhydrophilicity, but due to the unique wetting characteristics of superhydrophilic surfaces, sup...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/00
CPCC03C17/009C03C2217/445C03C2217/475C03C2218/112C03C2218/116
Inventor 林军张胜君朱振兴陈绍木
Owner FUYAO GLASS IND GROUP CO LTD
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