Development of Hemp Fiber Reinforced PLA Composites for Sustainable 3D Printing
Abstract
Research on hemp fiber-reinforced polylactic acid (PLA) filaments for sustainable FDM 3D printing. Hemp fibers were incorporated into PLA matrix at 2.5% and 5% by weight. At 2.5% hemp content, the composite demonstrated 29.6% higher tensile strength and 21.7% greater Young's modulus compared to pure PLA. The study examines mechanical and microstructural properties, providing insights for developing eco-friendly 3D printing materials from agricultural waste streams.
Questions this source addresses
- How does adding 2.5% hemp fiber by weight change the tensile strength and Young's modulus of PLA compared to pure PLA?
- What fiber treatment and processing steps are needed to make hemp-PLA filament compatible with standard FDM extrusion?
- What makes hemp fiber an attractive reinforcement material for sustainable, biodegradable 3D printing filaments?
- Why does increasing hemp fiber content to 5% produce diminishing mechanical improvements rather than continued gains?