Self-cleaning nano-coating, inorganic transparent coating layer and self-cleaning product

A nano-coating and transparent coating technology, applied in coatings, conductive coatings, etc., can solve problems such as power generation efficiency decline, work response time lag, and power generation loss of photovoltaic power plants.

Inactive Publication Date: 2018-01-30
ZHANGJIAGANG ALIEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Their disadvantages are that they "tolerate" dirt on the surface of the product for a period of time, and the self-cleaning function can only be turned on after external conditions such as water or light, and its working response has a serious time lag.
Studies have shown that if an average layer of 4 gra

Method used

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  • Self-cleaning nano-coating, inorganic transparent coating layer and self-cleaning product
  • Self-cleaning nano-coating, inorganic transparent coating layer and self-cleaning product
  • Self-cleaning nano-coating, inorganic transparent coating layer and self-cleaning product

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] ⑴Preparation of nano conductive SnO 2 . 25 parts by weight of tin tetrachloride hydrate (SnCl 4 ·5H 2 O) Dissolve in 100 parts by weight of deionized water, add 30 parts by weight of 25wt% concentrated ammonia water dropwise to completely convert tin ions into Sn(OH) 4 Precipitate, wash 5 times with water to remove chloride ions, and then disperse in 100 parts by weight of deionized water and adjust the pH to 10.5 with ammonia water, and quickly add 1.2 parts by weight of sodium peroxide Na under stirring 2 O 2 , All transferred to the hydrothermal reaction kettle, after the hydrothermal reaction for 5 hours, the temperature is lowered to room temperature, and the residual impurities such as sodium ions are removed by washing with deionized water for 5 times with the nanofiltration membrane, and the off-white substance on the surface of the filter is transferred to the container and replenished A small amount of water will get SnO 2 Aqueous dispersion of ...

Example Embodiment

[0038] Example 2

[0039] ⑴Preparation of nano conductive SnO 2 , SnO with a solid content of 9.8g / ml 2 Aqueous dispersion, SnO 2 The particle size is about 2 nm, which is the same as in Example 1.

[0040] ⑵Buy dura mater a, WO with a solid content of 5wt% 3 Methanol dispersion, WO 3 The particle size is less than 100 nanometers.

[0041] Purchase hard coat agent b, an aqueous dispersion of platinum particles with a solid content of 1% by weight, with a Pt particle size of less than 100 nanometers.

[0042] ⑶ Purchase adhesive A, SiO with a solid content of 20wt% 2 Methanol dispersion, SiO 2 The particle size is less than 10 nanometers.

[0043] Purchase adhesive B, amorphous SiO with a solid content of 1.5wt% 2 Aqueous dispersion, SiO 2 The particle size is less than 2 nanometers.

[0044] ⑷Prepare self-cleaning nano coatings. Mix appropriate amount of the above-mentioned nano conductive SnO 2 , Tungsten oxide hard coat agent, inorganic binder, deionized water and methanol, so that th...

Example Embodiment

[0047] Example 3

[0048] ⑴ Homemade nano-conductivity FTO. Add 10 parts by weight of tin tetrachloride (SnCl 4 ·5H 2 O) The hydrate is dissolved in 100 parts by weight of deionized water, and 30 parts by weight of 25wt% concentrated ammonia are added dropwise to completely convert tin ions into Sn(OH) 4 Precipitate, wash 5 times with water to remove chloride ions, transfer the precipitate to the hydrothermal reactor, add 0.1 parts by weight of hydrofluoric acid (HF) and 20 parts by weight of deionized water, then heat up the hydrothermal reactor to 180°C And after 15 hours of constant temperature cooling to room temperature. After separating the turbid liquid in the reactor, a colorless precipitate was obtained, indicating that fluoride ions have been doped into SnO 2 Lattice generates conductive nano-FTO (fluorine-doped tin oxide, F-SnO 2 ), washing with deionized water for 5 times with the help of nanofiltration membrane to remove impurities, transferring the sediment on the s...

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Abstract

The invention discloses a self-cleaning nano-coating, an inorganic transparent coating layer and a self-cleaning product. The self-cleaning nano-coating containing a nano conductive material, an inorganic film hardening agent, an inorganic binding agent and a hydrophilic solvent is prepared according to a ratio; the surface of an object is coated with the self-cleaning nano-coating to form the hydrophilic inorganic transparent coating layer; the coating layer has specific static-conducting and electrostatic dissipation functions, so that static electricity generated when the surface of the object is rubbed with flowing air can be eliminated in time; in the microcosmic aspect, the surface of the object loses an attraction force on dirt including ash particles and the like in a surrounding environment, and the dirt is difficultly attached on the surface of the object, so that the in-time self-cleaning effect of keeping the surface of the object clean at any time is realized; the self-cleaning product is remarkably different from traditional self-cleaning products including super-hydrophobic products, photocatalysts and the like which can start to work under external conditions including rainwater, light illumination and the like.

Description

technical field [0001] The invention relates to a self-cleaning nano coating, an inorganic transparent coating and a self-cleaning product, belonging to the field of nano coatings. Background technique [0002] In order to clean the dust, oil stains and other dirt on the surfaces of various objects such as vehicles, walls, glass, panels, etc., people currently use four methods: manual scrubbing, water spray washing, robot scrubbing, and self-cleaning surface preparation. Self-cleaning technology has attracted much attention because it can significantly reduce the number of operations and maintenance costs. Self-cleaning coatings are the most important way to prepare self-cleaning surfaces of objects. At present, they have been developed into categories such as superhydrophobic self-cleaning coatings, photocatalyst self-cleaning coatings and silica superhydrophilic self-cleaning coatings. [0003] Patents for superhydrophobic self-cleaning coatings such as CN201210326808, CN...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/24C09D7/61
Inventor 张麒
Owner ZHANGJIAGANG ALIEN NEW MATERIAL TECH CO LTD
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