Abstract
We report the conversion of lignin into a thermoplastic printable resin. Melt extrusion-based 3D-printability (also known as fused deposition modeling) of a polymer depends on several characteristics of the materials such as shear-rate dependent viscosity, thermal stability, and mechanical stiffness. This report summarizes our current approaches involving tailored lignin structures and their melting characteristics including rheological and thermal properties that are responsible for the material throughput and printability. Based on commercial printable materials, a window of viscosity and shear rate was determined for good printability. We tailored the lignin-based compounds' melt-rheology to match these criteria. For example, we demonstrate conversion of lignin to a new acrylonitrile-butadiene-lignin (ABL) resin followed by alloying with its styrenic counterpart ABS and delivering an outstanding printable material. The mechanical properties of the materials and their inter-layer adhesion are reported.
| Original language | English |
|---|---|
| State | Published - 2018 |
| Event | 5th Annual Composites and Advanced Materials Expo, CAMX 2018 - Dallas, United States Duration: Oct 15 2018 → Oct 18 2018 |
Conference
| Conference | 5th Annual Composites and Advanced Materials Expo, CAMX 2018 |
|---|---|
| Country/Territory | United States |
| City | Dallas |
| Period | 10/15/18 → 10/18/18 |
Funding
This research at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the U.S. Department of Energy (DOE) under contract DE-AC05-00OR22725, was sponsored by the Office of Energy Efficiency and Renewable Energy (EERE) BioEnergy Technologies Office (BETO) Program.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | DE-AC05-00OR22725 |
| Battelle | |
| Office of Energy Efficiency and Renewable Energy | |
| Oak Ridge National Laboratory | |
| Bioenergy Technologies Office |
