With strong shearing force and excellent mixing performance, the parallel twin-screw extruder is the core equipment for plastic modification and pelletizing. It can handle various plastic modification processes to improve material properties, and is widely used in plastic raw material factories and recycling pelletizing enterprises. Choosing the right equipment is the key to producing qualified modified pellets stably.

Filling Modification

Filling modification is the most commonly used modification method. Fillers such as calcium carbonate, talc powder, and glass fiber powder are added into the base resin to reduce raw material costs and improve product hardness and dimensional stability. The parallel twin screw extrusion machine can fully disperse and mix fillers with resin, avoiding agglomeration. It is suitable for filling and pelletizing of PP, PE, ABS and other materials. Combined with an automated composite centralized feeding system, it can achieve stable powder feeding and ensure the quality of modified pellets.

Glass Fiber Reinforced Modification

Glass fiber reinforced modification is used to improve material strength, heat resistance and creep resistance. The twin-screw extruder can control the shearing force to reduce excessive breakage of glass fibers and ensure the reinforcement effect. Glass fiber reinforced modification of PP, PA, PBT and other materials is all suitable for processing with a parallel twin-screw extruder.

Toughening Modification

To solve the problems of high brittleness and poor impact resistance of plastics, elastomers are added for toughening modification. The excellent mixing ability of the equipment allows the toughening agent to disperse evenly and improves the impact resistance of the material, which is commonly seen in PP, ABS and PS modification.

Plastic Blending and Recycling Modification

Different resins are blended to achieve complementary material properties. It is also suitable for modification and re-pelletizing of recycled plastics. With an energy-saving plastic recycling machine to process scrap materials, the parallel twin screw extruder re-plasticizes and modifies them, increasing the value of recycled materials.
Summary

Conclusion

The parallel twin-screw extruder can cover most plastic modification scenarios, including filling, glass fiber reinforcement, toughening, blending and recycling. By adjusting the screw combination, temperature and rotation speed according to material characteristics, stable-performance modified plastic pellets can be obtained.

FAQ

Q1: Can a parallel twin-screw extruder do filling modification?

A: Yes. It is highly suitable for high-filling modification and pelletizing with talc powder, calcium carbonate and other fillers.

Q2: Is glass fiber reinforced modification suitable for a parallel twin-screw extruder?

A: Yes. With a properly configured screw combination, it can reduce glass fiber breakage and ensure the reinforcement effect.

Q3: Can a parallel twin-screw extruder handle recycled plastic modification?

A: Yes. Combined with a plastic recycling machine, it can modify and re-pelletize recycled materials.

Q4: Which base plastics are suitable for twin-screw modification processing?

A: Common engineering plastics and general plastics such as PP, PE, ABS, PA, PBT and PS are all suitable.

Q5: Does modification production need a centralized feeding system?

A: It is recommended for high-filling powder modification to ensure stable feeding and improve pellet consistency.

Why Choose Benk Machinery?

From individual machines to complete production lines, Benk Machinery provides reliable and customized plastic processing
solutions. Since 2012, we have focused on plastic extrusion, nergy-saving plastic recycling machine, and automated compounding centralized feeding systems, helping customers build efficient and cost-effective production facilities.

Complete Extrusion Solutions: Professional expertise in plastic pipe, profile, sheet, plate and board extrusion lines.
Customized Project Solutions: Equipment and production lines can be configured according to your materials, products, capacity and factory requirements.
Stable & Cost-Effective Equipment: Reliable machine performance, efficient production and optimized energy consumption help reduce operating costs.
Professional Service: From technical consultation and production to installation, commissioning and after-sales support, our team provides complete project assistance.

Contact Benk Machinery:

PPlanning to upgrade your factory? Contact Benk Machinery for a customized project solution.
Email: [email protected]
Tel / WhatsApp: +8615950962426