3D-Cellfilament

Important results from the project

3D printers with filament is the most common technology in additive manufacturing with plastics. In this project, we sought to replace carbon fiber with nanocellulose as a strengthening agent and produce a 3D-printable biokomposite filament. We have developed a 3D filament of a biocomposite with derivatized nanocellulose and PLA, which works in commercial 3D printers. The nanocellulose also works as a strengthening agent in other plastics.

Expected long term effects

A direct positive environmental effect of implementing our results is that the amount of petro-based chemicals can be reduced in 3D filaments. Furthermore, we have used Swedish fiber raw material for the production of nanocellulose. The nanocellulose was produced using a new environmentally friendly catalyst and derivatization method. And the project has generated new know-how and new collaborations between industry and academia in the biocomposite area, which we intend to further develop.

Approach and implementation

This project was carried out as a collaboration between university and companies. Modified nanocellulose was produced and then compacted into granules. The granules were converted into 3D writing filaments. The material was mechanically characterized and tested for writability. We found the arrangement good where each participant contributed with their expertise and equipment.