Compounding of biopolymers constitutes the first preparation process for the modification of plastics by means of extrusion following the production of the base polymer. Throughout the preparation, characteristic feature of the plastics can be selectively changed.
Hereby, it is adapted to the next process and targeted product characteristics.The plastic is melted inside the extruder where it is blended with additives, fillers, reinforcing materials or a combination of them. After homogenization and degassing of the compound, it is formed – usually as strands – by using a tool, then cooled and processed into plastic granules. In the compounding process, numerous effectors arise before processing and during it. Depends on the type of plastic, these factors are evident in variable degrees and affect it’s mechanical, thermal, (chemical) and rheological properties as well.
JWELL Machinery could provide Bioplastic machine compounding turnkey technical solutions. Increase productivity while maintaining the properties of the biodegradable materials themselves. JWELL has the R&D center and machine that can help Test and Verigy the fomula and technical process for you.
CJWS Plus twin screw extruder equipped with super high torque gearbox, wear resistant & corrosive resistant barrels and screw elements, high torque shaft and safety clutch, efficient heating and precise control to ensure stable, reliable and long term production.
| Polymer | Filling | Additives |
| PBAT | CaCO3 Powder | Plasticizers |
| PLA | Corn Starch | Glycerine |
| PBS | TiO2 Powder | others |
| PHA | Talcum Powder | |
| PGA | Biomass |
| Extruder | Max. motor power N[kW] | L/D ratio | Max. screw speed[min⁻¹] | Capacity for reference[Hr⁻¹] |
| CJWH-65 | 75 | 40-56 | 300rpm | 240kg |
| CJWH-75 | 132 | 40-56 | 300rpm | 440kg |
| CJWS-65 | 90 | 40-56 | 266rpm | 310kg |
| CJWS-75 | 160 | 40-56 | 300rpm | 550kg |
| CJWS-75 Plus | 200 | 44-56 | 330rpm | 700kg |