Sustainable Soda Lignin-PLA 3D Printable Biocomposite Materials

Abstract

The development and manufacturing of lignin-based composites have shown promising results towards the sustainable development of green materials. However, the high brittleness and poor processability of composites restrict their potential applications, caused by the lignin's weak compatibility with conventional polymers and its high viscosity. In this study, soda lignin was extracted from oil palm empty fruit bunches (OPEFB), and a high-performance, printable lignin-based polylactic acid (PLA) composite was devised through copolymerizing 2-Ethylhexyl acrylate at the interface. It was shown that 10 wt% modified lignin (e-lignin) composites exhibit enhanced toughness from 1.16 to 3.84 MJ/m3 and impact energy from 2.12 to 6.36 KJ/m2 relative to the pure PLA, while also showing appropriate melt viscosity during fused deposition modeling. This study presents a method of utilizing lignin to replace petroleum-based thermoplastics, generally used in additive manufacturing with exceptional mechanical performance.

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Document Details

Document Type
Technical Report
Publication Date
Apr 04, 2023
Accession Number
AD1211599

Entities

People

  • Jonghwan Suhr

Organizations

  • Sungkyunkwan University

Tags

DTIC Thesaurus Topics

  • Additive Manufacturing
  • Chemical Synthesis
  • Chemistry
  • Environmental Protection
  • Fabrication
  • Fused Deposition Modeling
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Polymers
  • Printing
  • Surface Tension
  • Thermoplastic Resins

Fields of Study

  • Materials science

Readers

  • Manufacturing Engineering.
  • Nanocomposite Materials Science
  • Polymer Science and Technology