Black masterbatch production process

Black masterbatch production process

The common production process of black masterbatch is as follows.

(1) the production process of double rotor continuous mixer

This kind of craft production process is, first the carbon black, resin and other additives according to formula weighing, and then join the high-speed mixer of components mixture for 10 min at room temperature, it added to the twin rotor continuous mixing, mixing in the mixing temperature of 160 ° c, continuous mixing good object by the discharging door discharge to the downstream of single screw, through for extrusion strip. Then pull, sink cooling, cut into particles, that is, master batch. This kind of technological process material after shear mixing force is large, mixing production of color masterbatch dispersion effect is better, but due to the production of more suitable production equipment, the process is relatively large, high energy consumption, high cost.

(2) Mixing processing process flow

This process is the first carrier resin, additives and carbon black directly into the secret refining refining, refining good materials through the screw extrusion, granulation production of black masterbatch. Its production of black masterbatch performance is better, with good dispersion, generally used in the production of good plastic masterbatch and chemical fiber masterbatch. The price of masterbatch is relatively high.

(Double screw production process)

The technological process is that the carrier resin, additives and carbon black are pre-mixed by high-speed mixer, and then extruded and granulated by twin-screw rod to produce black masterbatch. The process is simple and the coaxial twin-screw extruder can also provide high shear force for the material. If the formula is designed and the process is adjusted reasonably, the masterbatch with good quality can be produced.