Self-cleaning nano coating applicable to automobile windshield

A windshield and nano-coating technology, applied in the direction of coatings, anti-corrosion coatings, biocide-containing paints, etc., can solve the problems of difficult dispersion, large specific surface area, high surface energy and chemical activity, etc., to improve stain resistance Excellent performance, good oil-water separation ability, and improved mechanical protection effect

Inactive Publication Date: 2018-05-04
MAANSHAN LANKE REMFG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic nano-silica is composed of -Si-O-Si- chains and forms a three-dimensional network. Its surface has -OH in different states and a large number of unsaturated bonds, and its specific surface area has high surface energy and chemical activity, making it difficult to Dispersion, it is difficult to prepare materials with excellent properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of self-cleaning nanometer coating that is applicable to on the automobile windshield, preparation method comprises the following steps:

[0018] (1) Weigh 0.13 moles of sodium silicate and 50 ml of hydrochloric acid, mix and stir for 10 minutes, add 20 ml of ethanol, 5 ml of ammonia water, and react in a 30°C water bath for 18 minutes after ultrasonic treatment for 15 minutes, then transfer to a poly In a tetrafluoroethylene reactor, react at 240°C for 20 hours. After cooling down, the reaction mixture is ultrasonically washed 2 times with absolute ethanol, and then 2 times with deionized water, and the precipitate is filtered and placed in an oven at 70°C. Dry for 6 hours;

[0019] (2) Take 40 ml of absolute ethanol, add 10 ml of deionized water and 1.8 g of hexadecyltrimethylsilane, stir and dissolve for 10 minutes, and disperse the nano-silica prepared in step (1) into the mixed ethanol Then add 3 milliliters of acetic acid with a molar concentration of 1.5 ...

Embodiment 3

[0035] A kind of self-cleaning nanometer coating that is applicable to on the automobile windshield, preparation method comprises the following steps:

[0036] (1) Weigh 0.15 moles of sodium silicate and 60 ml of hydrochloric acid, mix and stir for 15 minutes, add 25 ml of ethanol and 8 ml of ammonia water, and react in a 40°C water bath for 20 minutes after ultrasonic treatment for 20 minutes, then transfer to a poly In a tetrafluoroethylene reactor, react at 260°C for 24 hours. After cooling down, the reaction mixture is ultrasonically washed 3 times with absolute ethanol, and then 3 times with deionized water, and the precipitate is filtered and placed in an oven at 80°C. Dry for 8 hours;

[0037] (2) Take 45 ml of absolute ethanol, add 12 ml of deionized water and 2.0 g of hexadecyltrimethylsilane, stir and dissolve for 15 minutes, and disperse the nano-silica prepared in step (1) into the mixed ethanol solution, then add 5 ml of acetic acid with a molar concentration of ...

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Abstract

The invention relates to the technical field of nano material development and discloses a self-cleaning nano coating applicable to an automobile windshield. A precipitation reaction method is utilizedfor preparing silicon dioxide with the particle size of 1-50nm, then a silane solution is utilized for modifying, the silicon dioxide is decomposed into an acrylic resin solution, and the windshieldis coated. The prepared super-hydrophobic oleophobic nano composite coating has excellent oil-water separating capability, and a layered microstructure composed of nano holes and microcells which arecommunicated each other appears on the surface of the coating, thereby having a self-cleaning effect on dust; and under the combined action of microtopography and chemical composition of a coating material, mechanical protection on glass is improved, and the self-cleaning nano coating disclosed by the invention also has ice covering resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of research and development of nanometer materials, and in particular relates to a self-cleaning nanometer coating suitable for automobile windshields. Background technique [0002] Nanostructured materials are referred to as nanomaterials for short, which means that the size of their structural units ranges from 1 nanometer to 100 nanometers. Since its size is close to the coherence length of electrons, its properties change greatly due to self-organization brought about by strong coherence. Moreover, its scale is close to the wavelength of light, and it has a special effect of a large surface, so its properties, such as melting point, magnetism, optics, thermal conductivity, electrical conductivity, etc., are often different from those of the substance in its bulk state. the nature of the performance. [0003] People have successfully prepared many self-cleaning coatings according to the principle of bio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/62C09D5/16C09D5/08
CPCC08K3/36C08K9/06C08K2201/011C09D5/08C09D5/1687C09D133/00
Inventor 陈坦和陈明祥于初宏
Owner MAANSHAN LANKE REMFG TECH
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