There are many indexes of black masterbatch carbon black, and their index requirements are different depending on the scope of use. The quality of black masterbatch carbon black used in black masterbatch depends on the dispersion, coverage, rheology, stability, and color of the carbon black. Indicators such as brightness and darkness.
Requirements for black masterbatch carbon black: high dispersion
Black masterbatch is produced using carbon black. Plastics Carbon black is light, fluffy, and easy to fly, so if it is not handled properly, it will stain machines and workers, making the working environment dirty. Because of this, we choose to use a resin carrier, that is, black masterbatch, to complete the pre-dispersion of carbon black. This resin carrier is clean, free flowing and easy to use.
The difficulty in dispersion of carbon black also troubles masterbatch manufacturers. Because black masterbatch is processed by using a mixer to completely mix carbon black and base resin. The type of carbon black used also affects color dispersion. The smaller the carbon black particles, the more difficult it is to disperse.
The application of thin films is the most demanding of dispersion requirements. The final product of masterbatch with poor dispersion can be easily seen by the naked eye from the corners. In addition to the lack of aesthetics, the poor dispersion of black masterbatch carbon black in the film significantly reduces the weather resistance of the black film. Small particles with good dispersion are a main feature of the fiber industry, and these fibers are used in ropes, yarns, carpets and other industries. If the dispersion of the masterbatch is too poor, the fibers will be broken, causing production to stop.
Requirements for black masterbatch carbon black: strong covering power
The second factor that determines the quality of black masterbatch is the covering power. This factor is especially important for masterbatch used in waste or recycled polymers. In these cases, the role of black is to cover other materials in the waste. color. Large particles of black masterbatch carbon black have poor coloring ability and cannot easily cover all other colors in the underlying layer. As a result, the final product only gets a deviated color. In the melting process, the ability to correctly select carbon black with high coloring power to cover the existing color is the so-called covering power.
Requirements for black masterbatch carbon black: good fluidity
The third factor that determines the quality of black masterbatch is rheology and fluidity. If a masterbatch itself has good dispersion, but it cannot flow into the material to be molded, the production effect will not be ideal. Some masterbatch manufacturers use reused materials, waste or recycled materials as resin carriers. Although this saves costs, it results in poor fluidity of the product. Carbon black with good fluidity needs to be added to enhance the fluidity of the black masterbatch. . It is worth noting that masterbatch with minimum dilution ratio can produce uniform and well-dispersed black.
Requirements for black masterbatch carbon black: stability must be consistent
Masterbatch customers have very high requirements for the quality of masterbatch and the stability of raw materials. This is also the fourth factor that determines the quality of black masterbatch. An important manifestation of stability is a stable carbon black ratio. If the percentage of carbon black fluctuates, the amount of masterbatch that needs to be melted is not the same, and it is impossible to produce products of the same color tone.
Requirements for black masterbatch carbon black: light and shade should be distinct
The final factor that determines the quality of black masterbatch is the brightness of the color. There are various types of black masterbatch carbon black on the market that can be used for coloring masterbatch, but the colors and prices of each type are also very different. Large particle carbon black has a lower degree of coloration and a different undertone than small particle carbon black.
