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Carbon Black
What's Carbon Black
Carbon black is a form of amorphous carbon that is produced through the incomplete combustion or thermal decomposition of hydrocarbon-based materials. It is widely used as a pigment and reinforcing filler in various industries, including rubber, plastics, inks, coatings, and tires.
Four indicators
Nitrogen adsorption specific surface area
The determination result of the specific surface area of nitrogen adsorption represents the surface area per gram of carbon black, and the larger the specific surface area, the higher the blackness, but it is easy to aggregate and difficult to disperse.
Oil absorption value
It is an indicator to measure the compatibility and affinity of pigments and oils. The higher the oil absorption value, the stronger the pigment's ability to adsorb oil. Carbon black pigments with higher oil absorption value can be better dissolved and dispersed with oil-based substrates, thereby improving the dispersion and stability of pigments in paints, inks, inks and other coatings. In addition, the oil absorption value can also affect the color saturation and hiding power of carbon black pigment. In general, the higher the oil absorption value, the higher the color saturation of the pigment, the better the hiding power.
Dispersivity
Dispersion has a direct impact on its performance in various applications. Excellent dispersion improves mechanical properties and durability of the product. The dispersion index of carbon black is an important index to measure the dispersion property of carbon black materials, which is closely related to the surface properties of carbon black. It is necessary to control the preparation and processing of carbon black to ensure the excellent performance of its final application.
Volatile value
The lower volatile value means that the content of volatile substances in the pigment is low, the stability is better, and it is not easy to volatilize during use. This is important for certain application scenarios, such as coatings, inks and other products that require high stability, which can ensure the stability and durability of the pigment. In addition, the lower volatile value also helps to reduce environmental pollution. However, for inkjet printing, a higher volatile value may be more ideal because it can help the ink dry quickly and improve printing speed.
The relationship between the four indicators
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Nitrogen adsorption specific surface area
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Oil absorption value
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Dispersivity
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Volatile value
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Greater value
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Lower oil absorption
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Less dispersed
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Less volatile
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Smaller value
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Higher oil absorption
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More dispersed
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More volatile
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| Image | Carbon Black | Description | MOQ | More |
|---|---|---|---|---|
 | Carbon black 8182 | Carbon Black 8182 for Plastic - Quality Carbon black, Flexible Wholesale & ODM. | 1 | |
 | Fine black 1181 | Carbon Black 1181 for Paint - Quality Carbon black, Flexible Wholesale & ODM. | 1 | |
 | Fine black 5110 | High-Quality Carbon Black-Fine Black 5110 for Ink - ODM, Wholesale Offers, Sample Available. | 1 | |
 | Fine black 1180 | Fine Black1180,Good coloring strength, good fluidity and color adhesion. | 1 |
CARBON BLACK FOR INK
In the field of ink, carbon black has a very high covering strength and chroma, and has good dispersion, can be evenly dispersed in the ink, it has good performance, is better coating performance of the ink, but also has good light stability and heat resistance to maintain stability, and has high hardness and wear resistance, can improve the durability of printed matter and scratch resistance.
CARBON BLACK FOR COATING
In the field of industrial coatings, carbon black has high chroma and hiding power, and has good weather resistance and wear resistance to protect the substrate under the coating, increase the hardness and wear resistance of the coating, improve its weather resistance and durability, carbon black has good light stability, and is not easy to fade or deteriorate.
CARBON BLACK FOR PLASTIC
Carbon black is widely used in plastics, and carbon black can be used to adjust the color of plastic products to provide black or dark gray effects. It can also enhance the strength and hardness of plastic products, make plastic products more durable and wear-resistant, it has good weather resistance and electrical conductivity, flame retardant in line with the corresponding safety standards.
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