Mar. 01, 2019
Here is Extruding Masterbatch Manufacturer talking about Six Points Determine The Quality Of Black Masterbatch.
If you have any idea about High Quality Plastic Masterbatch Granule, welcome to contact us and discuss.
The quality of the black masterbatch is determined by the following factors:
Third, the liquidity is better
The third factor that determines the quality of the black masterbatch is rheology and fluidity. If a masterbatch itself has good dispersibility, but it cannot flow into the material to be molded, the production efficiency is not satisfactory. Generally, the primer resin used to produce the masterbatch has high rheology. In order to save costs, some masterbatch producers use recycled materials, scraps or recycled materials as resin carriers. The flow properties of the masterbatch thus produced will be significantly reduced, and if the rheology is not good, the molding union will have trouble with the cycle time and appearance treatment. It is worth noting that if the dispersion and rheology are not high, some end users will make up for it by increasing the dilution ratio, but this will only increase the cost of using the masterbatch. The masterbatch with the smallest dilution ratio produces a uniform, dispersive black.
Fourth, the compatibility is greater
The size of the compatibility is the fourth factor determining the quality of the black masterbatch. If the masterbatch is produced using chips or recycled materials, it may contain contaminants or other non-meltable polymers. This can cause some unpredictable and difficult constraints, wasting the time and raw materials of the final consumer. At this time, the base resin can be used to produce high-quality masterbatch, and the masterbatch has good compatibility during the melting process. Premium masterbatches can be produced using LLDPE, LDPE, HDPE, PP, PS, SAN, PA, and other materials. Special polymer masterbatches are available if engineering grades and stringent physical properties have been noted. Several internationally large masterbatches producers are conducting research to produce so-called "global universal" masterbatches. These masterbatches are compatible with a wide range of other materials, have good rheology, and are flexible for application.
Fifth, the stability should be consistent
In today's international economy, international customers are absolutely necessary for the quality of masterbatch and the stability of raw materials, which is the fifth factor that determines the quality of black masterbatch. One of the main manifestations of stability is the smooth carbon black ratio. If the percentage of carbon black is fluctuating, the amount of masterbatch to be melted is not the same, and it is impossible to produce a product of the same hue. Some final producers report that during the production process, the required dilution ratio is usually 5-8%, which is obviously unacceptable. Of course, other factors such as the fluidity and dispersion of the injected melt should be consistent with the amount of charge per batch.
Sixth, the brightness should be clearly defined
The final factor in determining the quality of the black masterbatch is the shade of the color.
There are various carbon black types available on the market for the coloration of the masterbatch, but the color and price of each type are also very different. Large particle carbon black has a lower degree of coloration and a different background color than small particle carbon black. Large particle masterbatches are suitable for use in film production such as trash bags but are not suitable for the production of products that are aesthetically pleasing, such as television signage or where UV protection is required, such as agricultural film or external piping. For these products, only the low-priced small particle carbon black is used. In addition, low transparency is also a characteristic of small particle carbon black.