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New Composite Advances Lignin as a Renewable 3D Printing Material

New Composite Advances Lignin as a Renewable 3D Printing Material

Written by David

December 22, 2018

ORNL scientists have created a new composite material for additive manufacturing that makes use of lignin, a biofuels byproduct. Scientists at the Department of Energy’s Oak Ridge National Laboratory have created a recipe for a renewable 3D printing feedstock that could spur a profitable new use for an intractable biorefinery byproduct: lignin. The discovery, detailed in Science Advances , expands ORNL’s achievements in lowering the cost of bioproducts by creating novel uses for lignin—the material left over from the processing of biomass. Lignin gives plants rigidity and also makes biomass resistant to being broken down into useful products. “Finding new uses for lignin can improve the economics of the entire biorefining process,” said ORNL project lead Amit Naskar. Researchers combined a melt-stable hardwood lignin with conventional plastic, a low-melting nylon, and carbon fiber to create a composite with just the right characteristics for extrusion and weld strength between layers […]

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