Automotive materials are the foundation of automotive design, quality and competitiveness. Every breakthrough technological advancement must be accompanied by innovations in materials and processes. Among many new materials, graphene has strong conductivity, the hardest material, and ultra-high strength. , Ultra-high thermal conductivity, ultra-high light transmittance and other properties, are widely used in many fields such as new energy vehicles, aerospace, etc., and have attracted attention from all parties.

In addition to being used as a body material, graphene composite materials can also be used in the field of auto parts. For example, car tires. Adding graphene materials to car tires can make the tires more wear-resistant, puncture-resistant, and can greatly increase the service life. In addition, graphene is used as a rubber filler to produce automobile tires, which can replace carbon black, white carbon black, etc., to enhance the tensile strength, elasticity and thermal conductivity of rubber, and the conductivity of graphene electrostatic tires can reach 10-3s/m.

3. High thermal conductivity composite material
The thermal conductivity of graphene is as high as 5300W/m·k, and it can be combined with a thermally conductive polymer to make a high-quality composite material with high strength, good electrical and thermal conductivity, and light weight. The ultra-two-dimensional nanostructure of graphene can ensure the uniform release of heat in the heating area, and can be used as a heating seat material for automobiles.

4. Automobile anti-corrosion coating materials
Nano graphene has high chemical stability, hydrophobic surface and resistance to acid and alkali chemical corrosion. Some studies have sprayed graphene on the surface of steel and soaked in seawater to keep it rust-free for one month, while ordinary high-performance coatings can only last a few days. Because of the high hydrophobicity and unique nanostructure of graphene, it can be used in the field of automotive coatings to improve the anti-corrosion effect.

5. Conductive functional materials for vehicles
In the automobile fuel supply system, the fuel flowing in a fast turbulent manner can generate static electricity. The components used in the fuel supply system (including fuel tanks, fuel pipe joints, filters, etc.) require electrical conductivity to prevent static electricity accumulation, eliminate sparks, Dangers such as explosion. At present, conductive plastics with carbon nanotubes as additives have been successfully applied to automobile fuel supply systems. Graphene has conductive properties comparable to carbon nanotubes, and has a lower production cost, and can be used in the field of conductive functional plastics. Graphene-based conductive functional plastics can also be used in automobile fenders, door handles, mirror boxes, etc., to facilitate the electrostatic spraying of the car body, eliminating the need for surface conductive treatment before electrostatic spraying compared to non-conductive plastics .

6. Electric vehicle energy storage materials
Power battery is the heart of new energy vehicles. Although the country is currently vigorously promoting electric vehicles, shortcomings such as short cruising range and long charging time still hinder the marketization of electric vehicles. At present, energy storage devices as power sources mainly include lithium-ion power batteries, supercapacitors, and fuel cells. All three require their electrode materials to have a large specific surface area, high conductivity, and good electrochemical stability. This is graphene Provides a wide range of applications.

7. Car night vision function
With the emergence of new types of graphene, future cars may have night vision capabilities. Its principle is to apply graphene to the chip of a thermal imaging device to make an infrared sensor, which can not only detect the shape of the object, but also needs to provide imaging resolution. In the future, if it is applied to the front windshield of a car, the safety range that can be seen when driving at night will be wider, which may also be a great help to traffic safety.

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