Catalog of carbon fiber and graphite fiber, what is the difference between carbon fiber and graphite

1. The ingredients are different.

Carbon fiber is a high-strength and high-modulus fiber with a carbon content of more than 90%. High temperature resistance ranks first among all chemical fibers.

Graphite fibers, fibers with a layered hexagonal lattice graphite structure with a graphitized molecular structure and a carbon content of more than 99%. Fibers with graphitized molecular structure and a carbon content of more than 99% and a layered hexagonal lattice graphite structure.

2. The characteristics are different.

Carbon fiber is a special fiber composed of carbon elements. It has the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance.

Graphite fiber has good thermal shock resistance, small thermal expansion coefficient, can withstand 3500 under oxygen, excellent flame resistance and electrical conductivity, corrosion resistance, etc.

3. The preparation method is different.

Carbon fiber is made of acrylic fiber and viscose fiber, which is oxidized and carbonized at high temperature.

Graphite fiber is obtained by making carbon fiber from the corresponding organic precursor fiber and graphitizing it in 2000 3300.

4. Different uses.

Carbon fiber is an excellent material for the manufacture of high-tech equipment such as aerospace. The main use of carbon fiber is as a reinforcing material to composite with resins, metals, ceramics and carbon to make advanced composite materials. The specific strength and specific modulus of carbon fiber reinforced epoxy resin composites are the highest among existing engineering materials.

Graphite fibers are used as high-temperature insulated radiation screens, advanced composite reinforcements, and functional composites, while nickel-plated graphite fibers can be used as fuel tanks, lightning protection and electromagnetic wave shielding materials for military power strikes, so-called graphite bombs.

Encyclopedia - Graphite fiber.

The carbon content in the fiber is about 95%, and the carbon content is about 99%, and the source of the carbon is called graphite fiber.

Process difference: the processing heating temperature of carbon fiber is 500 degrees Celsius to 1500 degrees Celsius, and the heating temperature of graphite fiber treatment is above 2000 degrees Celsius.

When carbon is heated to about 3,000 degrees Celsius in the hidden state under the condition of isolated air, it becomes graphite, and the heat-resistant temperature of graphite is higher than that of carbon, and if the temperature is high, the carbon fiber will oxidize, so only graphite fiber can be used.

Carbon fiber and graphite fiber are two different fiber materials, and they are enviably different in structure, physical properties and application.

First of all, carbon fiber and graphite fiber have different arrangement of carbon atoms. The carbon atoms of carbon fiber are arranged in a tetrahedral pattern, while the carbon atoms of graphite fiber are arranged in a hexagonal grid. This different arrangement results in differences in the physical properties of the two fibers, such as carbon fiber, which has higher strength and hardness, while graphite fiber, which is comparatively softer.

Secondly, the physical properties of carbon fiber and graphite fiber are also very different. Carbon fiber has high electrical and thermal conductivity, low density, and good lightweight and electromagnetic shielding performance. Graphite fiber, on the other hand, has a relatively high density and has good conductivity and thermal conductivity, making it suitable for electromagnetic shielding and heat conduction applications.

Finally, the two fibers also differ in application. Carbon fiber is mainly used in aerospace, automotive, and sporting goods fields, as well as high-end business and personalized custom fibers. Graphite fibers, on the other hand, are mainly used in high-end business, home and electronics, as well as applications with electrical and thermal conductivity requirements.

To sum up, carbon fiber and graphite fiber have different physical properties and application fields, and which fiber to choose depends on the specific needs and application requirements.

Abstract: Carbon fiber is a fiber made of carbon, so it is also called carbon fiber, and there is no difference between carbon fiber and carbon fiber. However, the same fiber made of carbon can also be divided into carbon fiber and graphite fiber according to different carbon content, the carbon content of carbon fiber is more than 90%, and the carbon content of graphite fiber is more than 99%; In addition to the difference in carbon content, there are also certain differences in the characteristics, manufacturing methods, and uses of the two fibers.

Let's take a look at the difference between carbon fiber and carbon fiber. 1. What is the difference between carbon fiber and carbon fiber?

There is only one word difference between carbon fiber and carbon fiber, and many people don't know, in fact, carbon fiber is carbon fiber, and there is no difference between the two.

Carbon fiber is a special fiber composed of carbon elements, so it is also called carbon fiber. Carbon fiber has a carbon content of more than 90%, using acrylic fiber and viscose fiber as raw materials, made of high-temperature oxidation and carbonization, with high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance, etc., the shape is fibrous, can be processed into various fabrics.

2. What is the difference between carbon fiber and graphite fiber?

Carbon fiber is a fiber composed of carbon elements, and graphite is an allotropic form of carbon elements, but there is a big difference between graphite fiber and carbon fiber

1. The carbon content is different.

Carbon fiber is a high-strength and high-modulus fiber with a carbon content of more than 90%. The carbon content of graphite fiber is more than 99%, and its molecular structure has been graphitized with a layered hexagonal lattice graphite structure.

2. The characteristics are different.

Carbon fiber has the characteristics of high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance; Graphite fiber has good thermal shock resistance, small thermal expansion coefficient, can withstand 3500 under oxygen, excellent flame resistance and electrical conductivity, and can resist corrosion.

3. The preparation method is different.

Carbon fiber is made of acrylic fiber and viscose fiber, which is oxidized and carbonized at high temperature. Graphite fiber is obtained by graphitizing the corresponding organic precursor fiber into carbon fiber in 2000 3300.

4. Different uses.

Carbon fiber is an excellent material for the manufacture of high-tech equipment such as aerospace. The main use of carbon fiber is to be used as a reinforcing material and composite with resin, metal, ceramic and carbon to make carbon fiber composite materials; Graphite fibers are used as high-temperature insulating radiation screen covers, advanced composite reinforcements and functional composite remainders, such as nickel-plated graphite fibers can be used as fuel tanks, lightning protection and electromagnetic wave shielding materials, and are used for military power strikes, that is, graphite bombs.

Carbon fiber and graphite fiber are different in the following four aspects of car fluid:

Composition: Carbon fiber is a high-strength and high-modulus fiber with a carbon content of more than 90%, while the carbon content of graphite fiber is higher than 99%, and the carbon molecular structure closure has been graphitized and is hexagonal lattice.

Characteristics: Carbon fiber has the characteristics of high strength, high modulus, high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance. Graphite fiber has better thermal shock resistance, small coefficient of thermal expansion, can withstand 3500 in the absence of oxygen, and has excellent flame resistance, electrical conductivity, corrosion resistance and other characteristics.

Method: Carbon fiber is made of acrylic fiber and viscose fiber as raw materials, and is oxidized and carbonized at high temperature. Graphite fibers are formed after carbon fibers are treated at high temperatures from 2000 to 3300.

Uses: Carbon fiber is an excellent material for the manufacture of aerospace and other high-tech equipment, and its main use is as a reinforcing material and resin, metal, ceramic and carbon composite materials to manufacture advanced composite materials. Graphite fiber is mainly used as high-temperature insulating radiation screen cover, advanced composite material reinforcement and functional composite materials, and nickel-plated graphite fiber can be used as fuel tank, lightning protection and electromagnetic wave shielding material, used in military power strikes, that is, the so-called graphite bomb.

In general, carbon fiber and graphite fiber have obvious differences in composition, characteristics, manufacturing methods and uses.

Graphite fiber, carbon fiber with a carbon content higher than 99%, is the material after carbon fiber has been graphitized at a high temperature of 2500-3000 degrees in a graphitization furnace.

graphite fiber, used as high-temperature insulating radiation screen cover, advanced composite reinforcement and functional composite material; It is used to make high-precision optical instruments.

In fact, the ** of graphite fiber is the same according to the model of carbon fiber, such as the domestic T300 and T400 carbon fiber after graphitization and T700 after graphitization is definitely different, and then go up, ** will be higher.

Graphite carbon fiber is a kind of carbon fiber, its heat treatment temperature is high (now usually higher than 2200 degrees), so the carbon content, conductivity and tensile modulus are high, of course, there are other unique properties, ** about 10,000 yuan kg, mainly used for aerospace vehicle structural materials.

When carbon is heated to about 3,000 degrees in the condition of isolated air, it will become graphite, and the heat-resistant temperature of graphite is higher than that of carbon, and oxidation will occur when the carbon is heated to a certain temperature. If the temperature is high, the carbon fiber will oxidize, so graphite fiber must be used.

Carbon fiber is a new type of fiber material with a carbon content of more than 95% and high-modulus fiber. It is a microcrystalline graphite material made of organic fibers such as flake graphite microcrystalline stacked along the axial direction of the fiber, and obtained by carbonization and cavity orange bond graphitization. Carbon fiber is "soft on the outside and rigid on the inside", which is lighter than metal aluminum, but the dust strength is higher than that of steel, and it has the characteristics of corrosion resistance and high modulus.

Characteristics of carbon fiber.

Carbon fiber has many excellent properties, carbon fiber has high axial strength and modulus, low density, high specific performance, no creep, ultra-high temperature resistance in non-oxidizing environment, good fatigue resistance, specific heat and conductivity between non-metal and metal, small thermal expansion coefficient and anisotropy, good corrosion resistance, good X-ray transmittance. Good electrical and thermal conductivity, good electromagnetic shielding, etc. Compared with traditional glass fiber, the Young's modulus of carbon fiber is more than 3 times that of it; Compared with Kevlar fiber, Young's modulus is about 2 times that of Kevlar fiber, and it is insoluble or swollen in organic solvents, acids and alkalis, and has outstanding corrosion resistance.

Applications of carbon fiber.

Carbon fiber carbon materials have been widely used in various fields of military and civilian industries. From aerospace, aviation, automobiles, electronics, machinery, chemicals, textiles and other civil industries to sports equipment and leisure products, carbon fiber reinforced composite materials can be used in military fields such as aircraft manufacturing, industrial fields such as wind power blades, electromagnetic shielding and de-energizing materials, artificial ligaments and other body substitute materials, as well as for the manufacture of rocket shells, motor boats, industrial robots, automotive leaf springs and drive shafts, bats and other sports fields. Carbon fiber is a typical new industrial material in the high-tech field.

Summary. Kiss, carbon fiber is a special fiber composed of carbon elements, with high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance, the shape is fibrous, soft, can be processed into a variety of fabrics, because of its graphite microcrystalline structure along the fiber axis preferred orientation, so along the fiber axis direction has a high strength and modulus.

What is the main raw material of carbon fiber?

Kiss, carbon fiber is a special fiber composed of carbon elements, with high temperature resistance, friction resistance, electrical conductivity, thermal conductivity and corrosion resistance, the shape is fibrous, soft, can be processed into a variety of fabrics, because of its graphite microcrystalline structure along the fiber axis preferred orientation, so along the fiber axis direction has a high strength and modulus.

Carbon fiber is a high-strength and high-modulus fiber material with a carbon content of more than 90%, and its high temperature resistance ranks first among all chemical fibers.