Correct use of black masterbatch:
1. What material is black masterbatch made of?
The materials constituting the black masterbatch are: 1. Carbon black; 2. Carbon black carrier; 3. Carbon black wetting agent; 4. Carbon black dispersant; 5. Other processing aids.
2. In what aspects does black masterbatch perform well?
In the dyeing of plastic products, the black masterbatch only needs 0.6% - 0.8%, it will be very black, and the addition will not be darker. According to the test data, if the products used outdoors in Xinjiang need to rely on black masterbatch to prevent aging, just use high-quality black masterbatch (instead of returning the carrier, wetting the white oil and supplementing calcium).
3. How to judge the quality of black masterbatch from the appearance?
High quality black masterbatch with medium gloss and medium hardness. If the oil is too bright, it means that there is too much oil and the luster is dim, indicating that the carrier is the return material or excess calcium carbonate. High quality black masterbatch is bitten by teeth and becomes brittle and soft. Too soft indicates too much organic dispersant, soft and loose.
4. What are the minor problems on the product surface after using black masterbatch?
If the pitting is a sharp and small tip, it indicates that the ability of the product processing equipment to disperse the masterbatch is limited, and the carbon black agglomerated particles in the masterbatch cannot be cut evenly, but the black masterbatch with low concentration should be used; Or there is too much calcium carbonate in the masterbatch, and too much white oil is extruded through single screw and twin-screw machines under high pressure to form small hard blocks that cannot be dispersed.
