Composite self-cleaning nanometer coating, inorganic transparent coating layer and self-cleaning product

A nano-coating, transparent coating technology, applied in coatings, conductive coatings, antifouling/underwater coatings, etc., can solve problems such as high adhesion and inability to solve quickly

Inactive Publication Date: 2018-04-10
ZHANGJIAGANG ALIEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this anti-static nano self-cleaning coating cannot quickly solve the dirt caused by

Method used

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  • Composite self-cleaning nanometer coating, inorganic transparent coating layer and self-cleaning product
  • Composite self-cleaning nanometer coating, inorganic transparent coating layer and self-cleaning product
  • Composite self-cleaning nanometer coating, inorganic transparent coating layer and self-cleaning product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] ⑴ Preparation of nano-conductive SnO 2 . 25 parts by weight of tin tetrachloride hydrate (SnCl 4 ·5H 2 O) be dissolved in 100 weight parts deionized water, drop the 25wt% concentrated ammonia water of 30 weight parts, tin ion is completely converted into Sn(OH) 4 Precipitate, wash with water 5 times to remove chloride ions, etc., then disperse into 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 2 o 2 , all transferred to the hydrothermal reaction kettle, after hydrothermal reaction for 5 hours, cool down to room temperature, wash 5 times with deionized water with the help of nanofiltration membrane to remove residual impurities such as nano-ions, transfer the off-white substance on the surface of the filter to the container and add Appropriate amount of water, you get SnO 2 An aqueous dispersion of conductive nanoparticles with a solid content of 9.8 g / ml, and SnO 2 The...

Embodiment 2

[0044] ⑴ Preparation of nano-conductive SnO 2 , SnO with a solid content of 9.8g / ml 2 Aqueous dispersion, SnO 2 The particle size is about 2nm, the same as in Example 1.

[0045] ⑵Purchase hard film a, WO with a solid content of 5wt% 3 Methanol dispersion, WO 3 The particle size is less than 100 nanometers.

[0046] Purchase hard coat agent b, an aqueous dispersion of platinum particles with a solid content of 1 wt%, and a Pt particle size of less than 100 nanometers.

[0047] (3) Buy nitrogen-doped titanium dioxide photocatalyst, N-TiO with a solid content of 5wt% 2 Aqueous dispersion, N-TiO 2 The particle size is less than 100 nanometers.

[0048] ⑷ purchase adhesive A, solid content is 20wt% SiO 2 Methanol dispersion, SiO 2 The particle size is less than 10 nanometers.

[0049] Binder B was purchased, amorphous SiO with a solid content of 1.5 wt% 2 Aqueous dispersion, SiO 2 The particle size is less than 2 nanometers.

[0050] ⑸ Preparation of composite self-cl...

Embodiment 3

[0054] ⑴ Self-made nano-conductive FTO. 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 water is added dropwise, so that tin ions are completely converted into Sn(OH) 4 Precipitate, wash with water 5 times to remove chloride ions, transfer the precipitate to the hydrothermal reaction kettle, add 0.1 parts by weight of hydrofluoric acid (HF) and 20 parts by weight of deionized water, and then heat the hydrothermal reaction kettle to 180 °C And keep at constant temperature for 15 hours and then cool to room temperature. After separating the turbid liquid in the reaction kettle, a colorless precipitate was obtained, indicating that fluoride ions had been doped into SnO 2 Lattice-generated conductive nano-FTO (fluorine-doped tin oxide, F-SnO 2 ), wash with deionized water 5 times to remove impurities by means of nanofiltration membrane, transfer the...

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Abstract

The invention reveals a composite self-cleaning nanometer coating, an inorganic transparent coating layer and a self-cleaning product. The coating, the coating layer and the product have anti-static,super-hydrophilic and photocatalytic functions at a same time. The composite self-cleaning nanometer coating containing 0.01-20 parts of conductive particles, 0.01-20 parts of a photocatalyst, 0.01-20parts of a hard film agent, 0.01-20 parts of an inorganic binder and 20-99.96 parts of a hydrophilic solvent is prepared. The surface of an object is coated with the composite self-cleaning nanometercoating, and the composite self-cleaning nanometer coating is solidified for forming a hydrophilic inorganic transparent coating layer. Because of specific functions of static electricity conductionand static electricity dissipation of the coating layer, static electricity generated when the surface of the object rubs flowing air can be instantly eliminated, and the surface of the object loses the attraction to particles in the surrounding environment in microstructure, so that sand, dust, pollen, haze and the like are difficult to attach to the surface of the object, and thus an instant self-cleaning effect of keeping the surface of the object clean at any time is achieved. The coating layer also has a photocatalyst degradation function and can be used for remarkably solving the problemof high-adhesive-force dirt caused by non-electrostatic adsorption of bird droppings, ink, artificial scrawling and the like.

Description

technical field [0001] The invention relates to a composite 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 surface 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 CN2012103...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/24C09D5/16C09D7/61
CPCC09D1/00C09D5/1687C09D5/24
Inventor 张麒
Owner ZHANGJIAGANG ALIEN NEW MATERIAL TECH CO LTD
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