Ozawa and share with you today, and how to identify the quality of black masterbatch! Tell me, you and down slowly it seems ~

Quality black masterbatch depends on the following six factors:

Higher degree of dispersion
Black masterbatch is used to produce carbon black. Health carbon black is very tricky and dirty mixture, which were covered with dust, light weight, was fluffy. Unless large-scale treatment measures, otherwise it will contaminate the machine and workers, the working environment has become dirty. Because of this, they generally choose to founder in a resin carrier, which is black masterbatch, the completion of the pre-dispersion of carbon black. The resin carrier is clean, free-flowing and easy to use. In addition, the carbon black in addition to dirty, there is a feature that is difficult to dispersion. If injection molding directly to the raw carbon black melting, coloring effect will be very poor. No dispersion of carbon black stripes and spots against a colored area if less obvious places will show up next. Standard injection molding machines can not effectively raw carbon black dispersion.

This is difficult dispersion properties of carbon black masterbatch manufacturers also plagued. Use single or twin screw extrusion machine producing high load of black masterbatch dispersion is very poor. When these black masterbatch mixing or molding the end user, it is only slightly better performance than the carbon black point, but the effect is equally unsatisfactory. In order to achieve a stable and highly dispersive, you must use a high level of shear Luo machine to mixed carbon black, such as a mixture of the FCM or BANBURY. With sufficient strength, which can make the mixing of carbon black and completely mixed together in the base resin. Carbon black type used also affects the dispersion properties. The smaller the particles of carbon black dispersion harder it.

  Thin wax application is the most particular requirements of the dispersion. Poor dispersion of the final product from the corner masterbatch can be easily seen to the naked eye. In addition to the lack of beauty outside, poor dispersion of carbon black in the film significantly reduces the black film weathering performance. Good dispersion of small particles are the main features of the fiber industry, these fibers for rope, yarn, carpets, and other industries. Large machines to more than 5,000 meters per minute speed while producing 30,000 shares of fine fibers. If masterbatch dispersion bad, it will break the fibers, resulting in production downtime.

Covering force stronger
Determines the quality of the black masterbatch The second factor is the covering power, used for the masterbatch of the polymer waste or recycled, this factor is especially important in these cases, the effect is to cover the black scrap to other color. Large particles of carbon black coloring ability is poor, difficult to cover all the other colors in the lower layer, the results of the final product only got deviated colors. In the melting process, the right to the first Optional carbon black having high coloring capability to cover the capacity of existing colors is called the covering force.

Better mobility
Determine the quality of black masterbatch third factor is the rheology and mobility. If a masterbatch itself has a good dispersion property, it does not enter the flow of the material to be molded, and that the production of the effect is not satisfactory. In general, for the production of primer resin masterbatch having a high rheology. To save costs, some material Masterbatch production of commercial reusable scrap or recycled materials as resin carrier. So the flow properties of masterbatch production will significantly reduce, if not good rheology, casting union trouble in the cycle time and the appearance of treatment. It is worth noting that if the chromatic dispersion and rheological not high, some end-users will compensate by increasing the dilution ratio, but this will only increase the cost of masterbatch. Masterbatch having the minimum dilution ratio can produce a uniform dispersion good black.

Compatibility should be large
Compatibility is determined by mass of black masterbatch fourth factor. If you are using a chip or masterbatch production out of recycled materials, it may contain contaminants or other non-meltable polymer. This will cause some unexpected difficult constraints trouble final consumer waste time and materials. At this point, you can choose to produce high-quality rendering resin masterbatch, masterbatch in the melting process have good compatibility. Quality masterbatch can be used LLDPE, LDPE, HDPE, PP, PS, SAN, PA, and other materials to produce. If you have marked the project level and rigorous physical performance, then special polymer masterbatch can get. Several large international masterbatch manufacturer, are conducting research in an attempt to produce a so-called "global common" masterbatch. These masterbatches and other materials can be widely tolerance, good rheology, can be applied flexibly.

Stability should be consistent
In today's globalized economy, international customers masterbatch quality raw materials that require high performance and stability is absolutely necessary, and this is the decision fifth factor black masterbatch quality. Stability of a major proportion of carbon black performance is stable. If the percentage of carbon black is fluctuated, then the number of the masterbatch is not the same need for melting, and to the production of the product can not be the same color. Some end producers reflect: dilution of their requirements have 5-8% difference than usual, depending on the manufacturer of masterbatch in the manufacture put much material. Obviously this is unacceptable. Of course, other factors such as the injection of the melt fluidity and dispersion properties of each batch should be consistent with the feeding amount.

To clear brightness
The final factor in determining the quality of black masterbatch is color shades. There are various types of carbon black masterbatch coloring can be used on the market, but all kinds of colors and prices are also very different. Small particles than large particles of carbon black the carbon black has a lower degree of coloration and the different background. Large particles masterbatch suitable for film production such as garbage bags, but not for those who focus on producing beautiful products, such as televisions signs or need UV or topical areas such as agricultural film pipeline. For these products, only the use of higher-priced small particles of carbon black. In addition, the low transparency is also a trait of small particles of carbon black.

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