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Improved FDM 3D Printing with Lignin Biocomposites

Improved FDM 3D Printing with Lignin Biocomposites

Written by David

October 9, 2019

In the recently published ‘ Lignin: A Biopolymer from Forestry Biomass for Biocomposites and 3D Printing ,’ international researchers Mihaela Tanase-Opedal, Eduardo Espinosa, Alejandro Rodríguez, and Gary Chinga-Carrasco explore a very specific area of materials related to biopolymers.

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As composites are used more often these days to improve existing materials—especially in 3D printing—alternative materials like wood are being experimenting with also. Fiber-based biocomposites and lignin can be better options than petrochemical-based products.

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For this study, the authors gleaned lignin from spruce trees being reduced to pulp. They used the material to create composite filaments, printing sample dogbones to test mechanical properties.

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Natural-fiber biocomposites offer the following:

  •  .Affordability
  • Good mechanical properties
  • No emission of toxins
  • Light weight

PLA is a popular polymer used in 3D printing, and as the authors remind us, it is actually a biopolymer—featuring good mechanical properties, biodegradability, easy melt-processability, and much more; however, it is also […]

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