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Oak Ridge National Laboratory develops Lignin-based renewable 3D printing material

Oak Ridge National Laboratory develops Lignin-based renewable 3D printing material

Written by David

January 8, 2019

The Department of Energy’s Oak Ridge National Laboratory has developed a recipe for a renewable 3D printing feedstock that could result in a profitable new use for an intractable biorefinery byproduct: lignin. The discovery, reported in the reputed journal Science Advances, is another achievement of ORNL in reducing the cost of bioproducts by new uses for lignin, which is the material left over from the processing of biomass. Lignin offers rigidity to plants and also makes biomass resistant to being broken down into useful products. Amit Naskar, ORNL project lead, said, “Finding new uses for lignin can improve the economics of the entire biorefining process.” Combining melt-stable hardwood lignin with conventional plastic, a low-melting nylon, and carbon fiber creates a composite that has just the right characteristics for extrusion and weld strength between layers during the printing process. The composite also has excellent mechanical properties. The other characteristics of […]

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