Automotive paint

The application of nanotechnology in automotive coatings can be divided into many directions, such as nano topcoat, collision discoloration coating, stone impact resistant coating, antistatic coating, deodorant coating, etc.

Nano automotive topcoat:

Topcoat is a kind of intuitive evaluation of automobile quality. a good automobile topcoat should not only have excellent decoration, but also have excellent durability, that is, it should be able to resist ultraviolet rays, moisture, acid rain and scratches.

In the nano-topcoat, the nanoparticles are dispersed in the organic polymer skeleton and act as loaded fillers and interact with the skeleton materials, which is helpful to improve the toughness and other mechanical properties of the materials. The results show that when 10% TiO2 nanoparticles are completely dispersed in the resin, the mechanical properties can be improved, especially the scratch resistance can be greatly improved, while when nano-kaolin is used as filler, the composite material is not only transparent, but also has the characteristics of absorbing ultraviolet rays, but also can improve the thermal stability.

In addition, the nano-material also has the effect of changing color with the angle. The addition of nano-TIO2 to the automobile metal flash topcoat can make the coating produce rich and unpredictable color effect. When nano-powder and flash aluminum powder or mica pearlescent powder pigment are used in the coating system, it can reflect blue milk light in the photometric area of the coating light area, thus increasing the color fullness of the metal topcoat and producing a unique visual effect.

Collision discoloration paint:

At present, the paint on the car will not change obviously when it is hit, and it is easy to leave hidden trouble because no internal trauma is found, and the collision discoloration paint is invented to prevent the hidden danger left by the car collision. The microcapsule containing dye inside the paint will break once it encounters a strong external force, so that the color of the hit part will be changed immediately to remind people to pay attention to it.

Stone-proof paint:

The car body is the part closest to the ground, which is often impacted by all kinds of splashed gravel and rubble, so it is necessary to use the protective coating with anti-stone impact. The addition of nano Al2O3, nano SiO2 and other powders to the automotive coating can improve the surface strength of the coating, improve the wear resistance and reduce the damage caused by gravel to the car body.

Antistatic coating:

Because static electricity will cause a lot of trouble, the development and application of antistatic coatings for automobile interior parts and plastic parts are becoming more and more extensive. Nano-materials such as SiO2 of 80nm, TIO2 of 40nm and Cr2O3 of 20nm can be used as electrostatic shielding coatings.

Deodorizing paint:

New cars usually have a peculiar smell, mainly the volatile substances contained in resin additives in automobile decoration materials. Nano-materials have very strong antibacterial, deodorizing, adsorption and other functions, so some nanoparticles as carriers can absorb relevant antibacterial ions to form deodorizing coatings to achieve the purpose of sterilization and antibacterial.

Car baking paint

Once the car paint peeling off and aging, it will greatly affect the beauty of the car, and aging is very difficult to control. The factors that affect the aging of automobile paint are varied, and the most important one should be the ultraviolet ray in the sun.

Ultraviolet radiation can easily lead to the fracture of the molecular chain of materials and the aging of material properties, so that polymer plastics and organic coatings are prone to aging. Because ultraviolet radiation will cause the film-forming material in the coating, that is, the molecular chain will be broken, resulting in a very active free radical, which will lead to the decomposition of the whole molecular chain of the film-forming material, and finally lead to aging and deterioration of the coating.

For organic coatings, because UV has a very strong erosion, so if it can avoid its effect, it can greatly improve the aging resistance of baking paint. At present, the most effective material for shielding ultraviolet radiation is nano-TiO2 powder, and its shielding against ultraviolet light is mainly scattering. It can be deduced that the particle size of this material has the best effect on ultraviolet scattering between 65 and 130nm.

Automobile tire rubber production

In the production of automobile tire rubber, powders such as carbon black and nano-silica are needed as reinforcing fillers and accelerators of rubber. Carbon black is the main reinforcing agent of rubber. generally speaking, the smaller the particle size is, the better the reinforcement performance of carbon black is. And nanostructured carbon black, compared with the original carbon black, has low rolling resistance, high wear resistance and wet skid resistance, so it is a promising high performance carbon black for tire tread.

Nano-silica is an environmentally friendly and excellent additive with strong adhesion, tear resistance, heat resistance and aging resistance, which can improve the wet ground traction performance and wet surface braking performance of tires. Nano-silica is used in color rubber products to replace carbon black for reinforcement to meet the needs of white or translucent products. At the same time, it can also replace part of carbon black in black rubber products to obtain high-quality rubber products, such as cross-country tires, engineering tires, radial tyres and so on. The smaller the particle size of nano-silica is, the greater its surface activity is, and the higher the binding glue content will be. The commonly used range of nano-silica particle size is from 1 to 110nm.

Nano SiO2 Price

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Nano SiO2 Supplier

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tags: Semiconductors semiconductor industry