The difference between conductive carbon black and ordinary carbon black in terms of oil resistance

The oil resistance effect of conductive carbon black is relatively good, because the main characteristics of conductive carbon black: high oil absorption value, large specific surface area, high structure, high purity, domestic conductive carbon black oil absorption value is generally between 140-280, so the higher the oil absorption value, the better the oil resistance.

The oil absorption value of ordinary carbon black is generally not more than 100, generally between 45-95, and the structure is low, the specific surface area is small, etc.

There is a big gap between the two, so we must choose more carbon black before studying the formula, so as not to affect the products of mass production in the later stage, the above is summarized by Xinxiang Delong Chemical, I hope to help you, thank you!

Natural graphite is crystalline, carbon black is amorphous, compared with chemical properties, carbon black is more active, carbon black adsorption impurities are stronger.

Carbon black, also known as carbon black, is an amorphous type of carbon. Light, loose and very fine black powder, with a very large surface area ranging from 10 3000 m2 g, is the product of incomplete combustion or thermal decomposition of carbon-containing substances (coal, natural gas, heavy oil, fuel oil, etc.) under the condition of insufficient air. Specific gravity.

Those made of natural gas are called "gas black", those made of oil are called "lamp black", and those made of acetylene are called "acetylene black". In addition, there are "groove black" and "furnace black". According to the performance of carbon black, there are "reinforcing carbon black", "conductive carbon black", "wear-resistant carbon black" and so on.

It can be used as a black dye for the manufacture of Chinese ink, ink, paint, etc., and is also used as a reinforcing agent for rubber.

There is also an antistatic agent called ionic liquid.

Conductive agent sail volt and conductive carbon black are both substances that improve the conductivity of materials, but they have the following differences:

1.**Different: The conductive agent is usually a carbonate or some metal substance, such as magnesium oxide, old round aluminum, ferric oxide, etc.; Whereas, conductive carbon black is a black powdery substance made from carbon.

2.Different uses: conductive agents are widely used in rubber, plastics, coatings and other materials to improve their conductivity; Conductive carbon black is widely used in printing inks, coatings, rubber, plastics, batteries and other fields, as a black colorant while improving the conductivity of materials.

3.Different functions: conductive agents generally improve the conductivity of materials by forming conductive networks or changing the chemical properties of materials, while conductive carbon black increases the conductivity of materials by increasing the conductivity path of materials.

In general, the functions of conductive agents and conductive carbon black are similar, both by improving the conductivity of materials, but the difference is that their **, use and function are slightly different.

Carbon black. It is a semiconductor material.

Commonly used conductivity.

or his reciprocal resistivity.

indicates his electrical properties. The conductivity of carbon black is closely related to its microstructure, particle size, structure, surface properties, etc.

The microstructure of carbon black gives carbon black its conductivity. The electrical properties of highly oriented pyrolyzed graphite with natural graphite single crystal are similar to semimetallic properties, i.e., the energy band between his valence electrons and conductive electron bands is very low, less than. Moreover, due to the orientation of the graphite layer, there are also obvious anisotropies in terms of electrical properties.

For carbon black aggregates, due to the concentric circle nature of the graphite layer orientation, most of the contact is along the c-axis, and its resistivity is higher than that of graphite.

The physicochemical properties of conductive carbon black are related to its electrical conductivity. In general, the smaller the particles, the better the conductivity, which is due to increasing the number of particles per unit volume of carbon black, thereby increasing the contact point or reducing the ion spacing in the dispersion system, resulting in a decrease in resistance and an increase in conductivity. Fine-particle carbon black has high electrical conductivity.

The structure of conductive carbon black is also an important factor affecting electrical conductivity. The high-structure carbon black also has good conductivity compared to the normal structure or the low-structure carbon black. This is apparently due to the presence of a fibrous structure in the chain branch structure, where the toe links form more conductive pathways.

The volatiles or residual tar-like substances on the surface of carbon black, that is, flux extracts, are films of oxygen-containing compounds or oily hydrocarbon molecules covered on the surface of carbon black, forming an insulating layer, increasing the resistance of carbon black and reducing conductivity. When carbon black is heated out in a vacuum inert atmosphere, the conductivity is obvious, and the conductivity is even greater. Carbon black surface roughness.

That is, porosity also affects the conductivity of carbon black. Carbon black with a rough and hollow surface has an increased conductivity. This is due to the fact that when the amount of filling is constant.

The long and empty particles are smaller than the solid ones. Therefore, carbon black with good conductivity should have fine particles. The structure is high.

The surface is pure. Rough and porous characteristic.

The electrical conductivity of carbon black refers to its own electrical conductivity;

Conventional conductive carbon black and acetylene carbon black have this property, conductive carbon black conductivity acetylene carbon black conductivity.

Other carbon black categories, such as: rubber carbon black, pigment carbon black, semi-reinforcing carbon black, wear-resistant carbon black, spray carbon black, metallurgical carbon black, etc., in the pure carbon black state, it also has a certain conductivity, but after being applied to the product, its conductivity is negligible (basically negligible).

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Carbon black is chained or grape-shaped under SEM, and individual carbon black particles have a very large specific surface area. It has better ionic and electronic conductivity than graphite, and the high specific surface area of carbon black particles and tight packing are conducive to close contact between the particles, forming a conductive network in the electrode, which is conducive to the adsorption of electrolyte and improves the ionic conductivity. In addition, the primary particles of carbon are agglomerated to form a branched chain structure, which can form a chain conductive structure with the active material, which is helpful to improve the electronic conductivity of the material.

The process problem caused by the larger surface is that it is difficult to disperse and has strong oil absorption, which requires improving the dispersion by improving the mixing process of living substances and conductive agents, and controlling the amount of carbon black within a certain range (usually below). In batteries, it can play the role of liquid absorption and liquid retention.

At present, conductive carbon black is still dominated by conventional conductive agent SP. There is a type of conductive carbon black, such as EC-300J, Carbon ECP and ECP-600JD, etc., compared with other conductive carbon blacks used in batteries, Koqin black has a unique branched chain morphology. The advantage of this form is that the conductor has many conductive contact points and more branched chains, so it can achieve extremely high conductivity with only a small amount of addition, and other carbon blacks are mostly spherical or flake-like, so a high amount of addition is required to achieve the required electrical properties.

Activated carbon is electrically conductive, and conductivity is between.

Activated carbon is a specially treated charcoal that heats organic raw materials (husks, coal, wood, etc.) in an airtight condition to reduce non-carbon components (this process is called carbonization), and then reacts with the gas to erode the surface to produce a microporous structure (this process is called activation). Because the activation process is a microscopic process, that is, the surface erosion of a large number of molecular carbides is punctate erosion, resulting in countless fine pores on the surface of activated carbon. The microporous diameter of the surface of activated carbon is mostly between 2 50nm, even a small amount of activated carbon, there is a huge surface area, the surface area of each gram of activated carbon is 500 1500m2, almost all applications of activated carbon are based on this characteristic of activated carbon.

Activated carbon is a general term for carbon materials prepared by pyrolysis and activation of carbon-containing raw materials such as wood, coal and petroleum coke, which have developed pore structure, large specific surface area and rich surface chemical groups, and strong specific adsorption capacity.

It is usually a porous amorphous carbon in powder or granular form with strong adsorption capacity. It is obtained by the carbonaceous substances (such as coal, wood, hard husks, kernels, resins, etc.) under the condition of isolated air by 600 900 high temperature, and then under the condition of 400 900 with air, carbon dioxide, water vapor or a mixture of the three of the three after oxidation activation.

Conductive carbon black is a carbon black with low or high resistance properties. It can give the product a conductive or anti-static effect. It is characterized by small particle size, large and rough specific surface area, high structure, and clean surface (few compounds).

Conductive carbon black is a carbon black with low or high resistance properties. It can give the product a conductive or anti-static effect. It is characterized by small particle size, large and rough specific surface area, high structure, and clean surface (few compounds).

It can be applied to different products, such as conductive rubber, conductive plastic, radio components, etc. The main varieties are acetylene, carbon black, etc., which are used in the battery industry.

Carbon black is the same as carbon black. Carbon black itself is a semiconductor material, conductive carbon black has a low resistivity, can make rubber or plastic have a certain conductive performance, used in different conductive or antistatic products, such as antistatic or conductive rubber, plastic products, cable materials; It can also be used as a raw material for dry batteries.

The conductivity of carbon black usually refers to the powder resistance of carbon black, unit: ·cm, and the constant voltage method is commonly used to test the conductivity of carbon black.

Carbon Black Industry" describes the knowledge, applications, functions, characteristics and latest ** of conductive carbon black, I hope to help you! Thank you!

The electrical conductivity of a solution is related to a variety of factors, which mainly include:1ion concentration, under the same conditions, the ion concentration is large and the conductivity is strong.

2.The number of charges carried by an ion, the higher the charge of the ion, the stronger the conductivity. 3.

The strength of the electrolyte, under the same conditions, the conductivity of the strong electrolyte solution is greater than that of the weak electrolyte solution. 4.The temperature of the solution, the higher the temperature, the stronger the conductivity.

5.The type of electrolyte, under the same conditions, the type of electrolyte is different, and the conductivity is also different. For example, at the same temperature, the conductivity of CaCl2 and NaCl solutions of the same concentration is different, and the weak conductivity of the solution does not indicate that the ionization degree of the electrolyte is small, even if the aqueous solution with a strong electrolyte has a small ion concentration, the conductivity is also weak.

Oil absorption value: the higher the oil absorption value, the better the conductivity;

Particle size: the smaller the particle size, the better the conductivity;

Structure: The higher the structure, the better the conductivity;

Dispersibility: Good dispersion performance will achieve the ideal conductivity effect with less addition.

Xinxiang Delong Chemical **** is a manufacturer of high-performance conductive carbon black, I hope the above summary can help you, thank you!

Conductive Carbon Black (Carbon Black) Conductive Carbon Black (Carbon Black) refers to carbon black with low resistivity or high conductivity, known as conductive carbon black. According to its conductivity, structure, surface area, oil absorption value, and production process, conductive carbon black can be divided into: ordinary conductive carbon black, superconductive carbon black, special conductive carbon black, high conductive carbon black, furnace conductive carbon black, groove conductive carbon black, acetylene conductive carbon black, etc.

Conductive carbon black has the characteristics of small particle size, high structure, pure surface, rough and hollow. It has the effect of anti-static, and can also give the product conductivity, with low resistance and high conductivity. It can effectively form a three-dimensional network structure in the insulator and effectively improve the conductivity.

Conductive (carbon black) carbon black is used in rubber, plastic, coating and other industries, which can play a good anti-static role and avoid discharge caused by charge accumulation, which affects production safety. Conductive carbon black is a product with good effect, low cost, and not easy to cause deterioration of physical properties among all conductive fillers. Conductive carbon black is also widely used in primary batteries, rechargeable batteries, fuel cells, and capacitor batteries, but the roles of conductive carbon black are not the same.

Xinxiang Delong Chemical Co., Ltd. has many years of experience in the research and development and production of high-performance conductive carbon black, and is committed to providing customers with high-performance conductive carbon black and supporting services.

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Physical characteristics of conductive carbon black.

Conductive carbon black can impart a conductive or anti-static effect to the product. Conductive carbon black is mostly furnace process, and there is also groove method conductive carbon black, of which acetylene carbon black is also a kind of conductive carbon black.

Carbon Black Industry" describes the knowledge, application, function and characteristics of conductive carbon black, I hope to help you! Thank you!

First of all, please take a look at the conductive carbon black index:

The amount of superconducting carbon black added and the resistivity that can be achieved.

1.The amount of superconducting carbon black added in rubber products and the resistivity that can be achieved, the amount of superconducting carbon black added in rubber products is 10%, and its resistivity can reach 10 to the 6th power of cm, and if the addition amount is increased to 25-30%, the resistivity of rubber products can reach 25 ·cm.

2.The amount of superconducting carbon black added in plastic products and the resistivity that can be achieved, the amount of superconducting carbon black added in plastic products is 12%, and its resistivity can reach 10 to the 6-9th power ·cm, if the addition amount is increased to 25%, the resistivity of plastic products can reach 10 to the 3-5th power ·cm

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