RESEARCH / MATERIAL EXTRUSION · 2021-03-18

Early Granulate Printing Research with Thermoplastic Cellulose-Based Materials

A 2021 VTT study used granule-based additive manufacturing to investigate renewable thermoplastic cellulose composites, documenting an early part of Brinter's material-extrusion technology history.

Beyond filament-based additive manufacturing

Published in Molecules in March 2021, the VTT study focused on thermoplastic cellulose-based compounds for additive manufacturing and evaluated the materials through both injection moulding and 3D printing of granules. The work forms part of the early research record around Brinter's granulate-processing capability.

Renewable materials meet direct granulate processing

The study addressed a manufacturing question that remains highly relevant today: how renewable and cellulose-rich thermoplastic compounds can be processed directly in additive manufacturing without first converting every material into conventional filament feedstock.

  • Thermoplastic cellulose-based composite materials.
  • Granule-fed additive manufacturing.
  • Material behaviour evaluated alongside injection-moulded references.
  • An early example of linking sustainable material development with process technology.

A foundation for broader material freedom

This research is useful historically because it shows that Brinter's technology development was already extending beyond bioinks into thermoplastic and sustainable-material processing. That broader material-processing foundation is now central to the company's advanced additive manufacturing approach.

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