This article identifies common misconceptions in masterbatch manufacturing and offers solutions for optimizing extrusion equipment. It highlights challenges in pigment dispersion and provides recommendations on screw configuration, shear force, and temperature control to improve product quality and efficiency.

The extrusion machines in the domestic plastic industry are roughly divided into two categories: single screw extruder and twin screw extruder. Because these two types of equipment have their own characteristics, they are widely used in the plastic industry.

The screw of the twin-screw extruder is a building block combination. The combination of the entire screw should be selected according to the specific formula, material characteristics, mixing requirements and operating conditions.

In general, the extrusion process experienced by the material in the twin-screw barrel generally includes: feeding, melting, melt conveying, mixing, homogenization, exhausting, metering, and the like.

Introduction and application of twin screw extruder (1) Introduction of twin screw extruder (2) Segmentation of twin screw extruder (3) Conveying elements (4) Shearing elements