This article explains how blending SBS (styrene–butadiene–styrene) with PE (polyethylene) or PS (polystyrene) improves its properties. Adding PE enhances SBS’s abrasion resistance, hardness, weatherability, and tear strength, while maintaining good tensile strength and elongation. Blending with PS increases hardness and melt flow rate but may reduce tensile strength and elongation due to phase separation at higher PS content. Proper oil extension and using grafted compatibilizers can further improve processing and compatibility. These blending techniques help produce TPE/TPR materials and impact modifiers suitable for footwear, automotive parts, and plastic toughening applications.

This article explores the five main factors that cause wear in twin-screw extruder barrels and screws: abrasive wear from fillers, corrosive additives, high-intensity wear zones, extreme operating conditions (temperature and pressure), and internal moisture or gases. It emphasizes the importance of choosing high-performance materials—especially powder metallurgy steel—to extend component lifespan, reduce maintenance costs, and improve production efficiency in plastic compounding operations.

Shear heat release occurs in extrusion as the screw's shearing action generates heat, affecting material temperature. Proper control through screw design, speed regulation, and cooling ensures process efficiency and product quality. It can also be leveraged to enhance material properties in specific applications.

Plastic compounding equipment is a common plastic processing equipment, which is used to mix different plastic raw materials together and make them into plastic granules or plastic sheets through processes such as heating and extrusion. The importance of plastic compounding equipment lies in its ability to provide an efficient plastic compounding process to ensure the quality and performance of plastic products.