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Lignin, nylon and carbon fiber produce ideal composite for 3D printing

Lignin, nylon and carbon fiber produce ideal composite for 3D printing

Written by David

January 3, 2019

Using as much as 50% lignin by weight, the new composite material created at ORNL is well suited for use in 3D printing. Photo: Oak Ridge National Laboratory. Scientists at the US Department of Energy (DOE)’s Oak Ridge National Laboratory (ORNL) have created a recipe for a renewable 3D printing material that could spur a profitable new use for an intractable biorefinery by-product: lignin. The discovery, reported in a paper 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. The researchers combined a melt-stable hardwood lignin with conventional plastic – a low-melting nylon […]

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