Carbon black, which is difficult to disperse, also plagues masterbatch producers. The dispersion of highly loaded black masterbatches produced using single or double spiral extruders is very poor. When these black masterbatches are blended or molded by the end user, they perform only slightly better than carbon black, but the results are just as unsatisfactory. IN ORDER TO ACHIEVE A CONSISTENTLY HIGH DEGREE OF DISPERSION, A HIGH-LEVEL SHEAR BLENDER MUST BE USED TO BLEND CARBON BLACKS SUCH AS FCM OR BANBURY BLENDS. With sufficient strength, these mixers can completely blend carbon black and base resins together. The type of carbon black used also affects the dispersion. The smaller the carbon black particles, the more difficult it is to disperse.
Black masterbatches are produced using carbon black. Raw carbon black is a very difficult and dirty mixture, it is dusty, lightweight, and fluffy. Unless large-scale treatment is employed, it can stain machines and workers, making the working environment dirty. Because of this, casters generally choose to use a resin carrier, i.e. a black masterbatch, to complete the pre-dispersion of carbon black. This resin carrier is clean, free-flowing, and easy to use. In addition, in addition to being dirty, carbon black also has the characteristic that it is difficult to disperse. If the raw carbon black is melted directly during injection molding, the coloring effect will be very poor. Anthracite streaks and spots without dispersion will be noticeable if they are leaned against less pigmented areas. Standard injection molding machines do not effectively disperse carbon black.
You must know that black masterbatch is originally a granular material, which is processed into a thin film, which really requires advanced technology and experience, this kind of technology and machinery and equipment are not something that we can understand, but the application of film has a great effect on our lives.
Black mother is tasteless, environmentally friendly, smokeless, non-toxic produced by this product, his surface is very smooth and shiny, the color of the solid color is relatively stable, and there will be some color spots, color lines, stains and so on like other pigments, which will reduce the cost can also reduce some plastics in the plastic and repeated heating to produce this degradation, can also reduce the essential performance of the plastic, to save other additives. It can reduce the pollution of this plant to the environment, and can imitate the national environmental protection benefits.
The general use of the technical process is wet, black masterbatch manufacturers will be this black masterbatch material through water grinding with each other, washed with water, drying, phase transfer, granulation, only such products can get the quality of the guarantee, in addition, our forehead this pigment after grinding treatment at the same time, should also carry out a series of masterbatch technology to detect, such as some determination of the diffusion performance of the sand slurry, the fineness of the sand slurry, The determination of the solid content of the sanding slurry and the fineness of some of the determined color paste and so on are carried out.
1. The material used by the customer is recycled material: because the compatibility of the recycled material is much worse than that of the new material, and the customer purchases some general-purpose black masterbatch with relatively low requirements, after the test, the performance of the general-purpose black masterbatch and the performance deviation of the recycled material are relatively large, so the possibility of the test results is not black enough.
2. The raw materials used by the customer are not suitable for the performance of the black masterbatch taken by the customer; Some customers use modified materials, but the black masterbatch he takes is universal, so naturally it is not right, because the carrier of the masterbatch and the modified material itself is already different, so there are more compatibility and diffusion problems, and the blackness will be greatly reduced.
3. Customers are accustomed to seeing the blackness; Usually, when changing raw material suppliers, many customers may be more inclined to look at the blackness of the masterbatch, and ignore the carrier of the black masterbatch, compatibility, diffusion, after the customer gets our black masterbatch, they will put the black masterbatch according to the proportion they used before, then the result will also lead to a lot of problems, it may be that the diffusion is not good, the compatibility deviation, then the result is not enough blackness,