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Take you to understand the huge role of carbon fiber
 July 28, 2022
 
Under the background of high-speed industrialization in today's world, the use of carbon fiber is becoming more and more diversified. In the occasions requiring high temperature and high physical stability, carbon fiber composite materials have irreplaceable advantages. The higher the specific strength of the material, the smaller the self-weight of the component, and the higher the specific modulus, the greater the rigidity of the component. It is precisely because of its excellent performance that carbon fibre has a wide range of application prospects in national defense and civil fields.
 
1. Composite materials
 
In addition to being used as a thermal insulation material in traditional use, carbon fiber is mostly added to resin, metal, ceramic, concrete and other materials as a fiber reinforcing material to form a composite material. Carbon fiber has become the most important reinforcement material for advanced composite materials. Because carbon fiber composites have the characteristics of lightness and strength, lightness and rigidity, high temperature resistance, corrosion resistance, fatigue resistance, good structural dimensional stability, good design, and large-area integral molding, they have been used in aerospace, defense, military and civil industries. are widely used in various fields.

Carbon fibers can be processed into carbon fiber fabrics, felts, chopped mats, belts, paper and other materials. High-performance carbon fiber is the most important reinforcement for the manufacture of advanced composites.
 
2. Civil construction

Carbon fiber is also used in the reinforcement and reinforcement of industrial and civil buildings, railway highway bridges, tunnels, chimneys, tower structures, etc. In railway buildings, large-scale roof systems and sound insulation walls will have good applications in the future. It is a promising application of carbon fiber cloth. It has the characteristics of low density, high strength, good durability, strong corrosion resistance, chemical corrosion resistance such as acid and alkali, good flexibility and strong strain capacity. The truss-girder roof made of carbon fiber tubes is about 50% lighter than steel, making large-scale structures practical, and the construction efficiency and seismic performance have been greatly improved. In addition, when carbon fiber is used as a glass fiber reinforced concrete materials, there is no need to increase bolts and rivets for fixing, so the disturbance to the original concrete structure is small, and the construction process is simple.
 
3. Aerospace
 
Carbon fiber is an indispensable strategic basic material for cutting-edge weapons and equipment such as rockets, satellites, missiles, fighter jets and ships. The application of carbon fiber composite materials on the missile body and engine casing of strategic missiles can greatly reduce the weight and improve the missile's range and assault capability. For example, the three-stage shells of intercontinental missiles developed by the United States in the 1980s are all made of carbon fiber and epoxy resin composite. Material. Carbon fiber materials have also begun to be widely used in a new generation of fighter jets. For example, the fourth-generation fighter jet F22 of the United States uses about 24% carbon fiber composite materials, so that the fighter jet has supersonic cruise, over-the-horizon combat, and high mobility. and stealth characteristics. Boeing has launched a new generation of high-speed wide-body passenger aircraft Sonic Cruiser, about 60% of the structural components will be made of reinforced carbon fiber plastic composite materials, including the wings.
 
Carbon fiber is also the perfect material for modern transportation such as large civil aircraft, automobiles, and high-speed trains to achieve "lightweight". The demand for carbon fiber in aviation applications is increasing, and the new generation of large civil airliners Airbus A380 and Boeing 787 use about 50% of carbon fiber composite materials. The fuselage of the Boeing 787 is made of carbon fiber, which allows the plane to fly faster and consume less fuel, while increasing cabin humidity for greater passenger comfort.
 
4. Automotive materials
 
Carbon fiber material has also become a material favored by car manufacturers, and has begun to be widely used in car interior and exterior decoration. As an automotive material, the biggest advantage of carbon fiber is its light weight and high strength. Its weight is only 20% to 30% of that of steel, but its hardness is more than 10 times that of steel. Therefore, the use of carbon fiber materials in automobile manufacturing can make a breakthrough in the lightweight of automobiles and bring social benefits of energy saving. The industry believes that the use of carbon fiber in the field of automobile manufacturing will increase.

Take a carbon fiber car developed by the Chinese Academy of Sciences as an example. On the hood of a car made of ordinary materials, if a hammer is knocked hard, there may be depressions on the paint cover, but the car shell of this car is very strong. After the hood, it will rebound quickly and the surface will not be damaged at all. The researchers said that a car made of carbon fiber composites is lighter and faster than a car made of ordinary steel. Carbon fiber cars have abandoned the traditional steel structure and are made of carbon fiber materials in large quantities, which can reduce the weight of ordinary steel cars by 60%. With the same fuel consumption, the car can drive an extra 50 kilometers per hour.

Although carbon fiber is light, it has better safety. Although carbon fiber looks like plastic, it is actually more impact-resistant than steel, especially the steering wheel made of carbon fiber has higher mechanical strength and impact resistance. With the cooperation of composite materials, carbon fiber cars have become armored vehicles in family cars.
 
5. Fiber reinforcement
 
Carbon fiber reinforcement includes carbon fiber cloth reinforcement and carbon fiber plate reinforcement. The study of carbon fiber materials for reinforcement and repair of concrete structures began in the 1980s in developed countries such as the United States and Japan. This technology started very late in China, but with the rapid development of China's economic construction and transportation industry, a considerable part of the existing buildings caused historical problems due to the low design load standard at that time, and some buildings were difficult to meet due to the change of function. The current requirements for standardized use require urgent maintenance and reinforcement. There are many commonly used reinforcement methods, such as: enlarged section method, outer steel reinforcement method, bonded steel reinforcement method, carbon fiber reinforcement method, etc. Carbon fiber reinforcement repair structure technology is another new type of structural reinforcement technology after increasing the concrete section and bonding steel.
Since 1997, China has introduced carbon fiber composite materials to strengthen concrete structure technology research from abroad, which has become a hot spot in research and engineering applications. Dozens of domestic universities and research institutes have carried out this research work, and have achieved a number of research results close to the international advanced level. As China has the largest civil construction market in the world, the application of carbon fiber reinforced building structures will show a growing trend.
 
6. Sporting goods
 
Carbon fiber is used in the field of sports and leisure, such as clubs, fishing rods, tennis rackets, badminton rackets, bicycles, ski poles, snowboards, windsurfing masts, nautical hulls and other sports products are one of the main users of carbon fiber glass.
Bat and racket frames are important in sports applications. It is estimated that 34 million bats are produced annually. 40% of the world's bats are made of carbon fiber. The market capacity of tennis racket frames is about 6 million pairs per year, and other sports applications include ice hockey sticks, ski poles, etc. Carbon fiber is also used in rowing, rowing and other marine sports.
 
7. Wind turbine blades
 
The rated power of the generators of wind turbines in the world is getting larger and larger, and the size of the fan blades that are suitable for them is also getting larger and larger. In order to reduce the deformation of the blade, carbon fiber is used in some parts of the main multipliers such as bearings and blades to supplement its stiffness. Carbon fiber also has broad application prospects in new energy fields such as wind energy, nuclear energy and solar energy. When the power of the wind turbine exceeds 3MW and the blade length exceeds 40 meters, the performance of traditional glass fiber composite materials has reached its limit, and the use of carbon fiber composite materials to manufacture blades is a necessary choice. Only carbon fiber can reduce the weight of the blade and meet the requirements of strength and stiffness.
 
 
Hebei HaiDing Fiberglass Manufacturing Co.,Ltd. is a glass fiber material manufacturer with more than 20 years of experience and 10 years of export experience, which can provide you with high-quality roving glass fiber and other composite materials.
 
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