specializes in research & development and production of Carbon Black

The influence and regulation of Carbon Black Pigment on coating performance

Carbon Black Pigment in coatings is an important additive that plays a key role in the coatings industry. Carbon black is a highly fine particle of carbon whose pigmentary properties and surface activity make it a common filler and pigment in paints.

pigment carbon black for Paints & Coatings-Polyurethane Lacquer

1. Application of carbon black pigment in coatings

Carbon black is widely used in the coatings industry due to its high surface area and pore structure. Adding an appropriate amount of carbon black to the coating can significantly improve the mechanical strength, wear resistance and weather resistance of the coating. In addition, carbon black can increase the hiding power and UV resistance of coatings. In terms of pigments, carbon black is often used to adjust the hue and depth of coatings so that they can meet a variety of application requirements.

2. Effect of carbon black pigment on coating performance

  1. Mechanical properties: Carbon black can form a three-dimensional network structure in the coating, enhance the scratch resistance and impact resistance of the coating, and give the coating better durability and adhesion.
  2. Weatherability: The highly fine particles of carbon black absorb and scatter UV rays, slowing down the aging process of paint and extending its service life.
  3. Color adjustment: The use of carbon black as a pigment in paint can adjust the color and depth of paint to meet the color needs of different customers.
  4. Electrical conductivity: Adding an appropriate amount of carbon black can improve the electrical conductivity of the coating, and is widely used in electromagnetic shielding, electrostatic protection and other fields.
  5. Viscosity and rheological properties: The addition of carbon black will affect the viscosity and rheological properties of the coating, which needs to be reasonably controlled in the formula design to ensure that the coating construction performance meets the requirements.
  6. Environmental protection: The application of some traditional fillers in coatings is subject to environmental protection restrictions. Carbon black, as a form of carbon, has better environmental performance, making the coating more environmentally friendly while meeting performance requirements.

3. Control methods of carbon black pigment in coatings

  1. Particle size control: The particle size of carbon black has a great influence on the performance of the coating. Usually, fine particles of carbon black will cause the rheological properties of the coating to decrease. Therefore, it is necessary to select the appropriate particle size of carbon black according to the specific application of the coating.
  2. Surface modification: Through surface modification, the interaction between carbon black and the coating matrix can be adjusted, its dispersion can be improved, its bonding force with the matrix can be enhanced, and the mechanical properties of the coating can be improved.
  3. Addition amount control: The amount of carbon black pigment added should be determined according to the formula and target performance of the paint. Adding too much may lead to poor fluidity of the paint and affect the construction effect.
  4. Compatibility with other additives: Carbon black pigment can be compatible with other additives, such as resins, thickeners, etc., to further improve the performance of the coating through interaction.
  5. Production process control: During the coating production process, the production process and conditions are strictly controlled to ensure the uniform dispersion of carbon black and avoid agglomeration.

As an important additive in coatings, carbon black plays a vital role in influencing and regulating coating properties. By rationally controlling factors such as the amount of carbon black pigment added, particle size, and surface modification, coating performance can be optimized and regulated.

However, in practical applications, scientific and reasonable selection and design still need to be carried out based on the specific coating formula and use environment. In the future, with the continuous development of science and technology, the coating industry will conduct more in-depth research on carbon black and its control methods, bringing more possibilities to the development of the coatings industry.

Beilum carbon black pigment for inks,Coatings, Plastics

Beilum Carbon Chemical Limited
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