Masterbatch carbon black manufacturer
Black masterbatch carbon black type
According to the international classification, there are more than 30 varieties in China. Mainly divided into two categories of rubber and non-rubber. In the carbon black for rubber, it is mainly wear-resistant carbon black, which can effectively improve the wear resistance of the rubber tire; in the non-rubber carbon black, there are only a few kinds of carbon black which can be used as the black masterbatch.
The use of channel black is the most widely used in plastics, mainly due to its rich source, high purity and small particle size. Among them, it is divided into high pigment carbon black (particle size 9-17mm), medium pigment carbon black (particle size 18-25mm) and low pigment carbon black (particle size 26-37mm).
Prices vary widely due to different carbon black varieties. Carbon black particles are rarely present in primary particles due to their inherently active nature, and almost all have agglomerated particles in a certain range of particle sizes.
The carrier is a substance that carries carbon black. What kind of raw materials are used for general plastic products, and what raw materials are used for the carrier. The black masterbatch thus produced has good compatibility with the plastic raw material. For example, PS (polystyrene) plastic products, the black masterbatch carrier used is PS. For polyethylene plastic products, the carrier is polyethylene.
However, according to the introduction of black masterbatch carbon black manufacturers, LDPE (high pressure polyethylene) is generally used because LDPE has the strongest ability to carry carbon black and has good processing performance. Other polyethylene HDPE and LLDPE can only produce low concentration black masterbatch. For PP (polypropylene) plastic products, only black masterbatch with PP and LDPE as the carrier can be used, but black masterbatch with HDPE and LLDPE and other plastics as the carrier cannot be used. Of course, the black masterbatch which uses the recycled material as a carrier is also used.
