Search Research Equipment & Facilities

Extruder / Compoundeer Unit Facility


Within the expertise field “Sustainable Plastics Technology” our goal is to develop materials, processes and products that lower the ecological footprint of plastic products. For this purpose we work with biobased plastics but we also have a strong focus on optimizing end-of-life options via mechanical recycling or organic recycling. We closely cooperate with industry during the developmental phases or our research and we help industry to implement new materials and technologies.

Processing and compounding of biobased polymers enables us to create innovative biobased materials and products with desired material properties. We use our expertise and technologies for processing biobased polymers into various materials, such as bioplastics, coatings and adhesives, resins and composites. The produced materials and products can be tested in our conditioned materials laboratory.

Within the facility 3 compounding extruders with modular screw- and barrel set-up are available. The extruders can be provided with (side-)feeders, dosing pumps for fluids, degassing equipment including a stuffer, a melt pump and various pelletising systems. 

  •  Leistritz ZSE 18 HP Twin screw, 18 mm 40D
  •  Berstorff ZE 25 Twin screw, 25 mm
  •  Berstorff ZE 42 Blue Power Twin screw, 42 mm 56D/40D

Technical Details

See appendix 1 – 3 (documents)


Various materials and products developed at WFBR have been commercialized. Examples include Biofoam®, a PLA-based particle foam, Whimzees™, edible Pet chews and D-grade®, compostable plant pots. Also, we are well known for our work on co-continuous starch based blends, heat stable PLA products and our developmental work on PHA’s.

Our strength is that we work with all biobased polymers available on the market. Moreover we process novel polymers that we have produced ourselves on a kg scale. For us the most important polymers are:

  •  PLA including nucleated and sc-PLA
  •  Starch blends
  •  PHA’s
  •  PEF
  •  Thermoplastic celluloses
  •  Various polyesters like PBS(A), PBAT, PCl and PGA

Contact Gerald Schennink
Contact Karin Molenveld


Krauss Maffei Berstorff


ZE42x56D BluePower




Wageningen Food & Biobased Research

Last edited by Oscar de Vos on 2020-03-06