What are Rice Husks?
Rice husks are the hard outer shells of rice grains, often discarded or burned. They are fibrous and silica-rich, making them ideal for composite materials.
Why Use Them for Filaments?
Sustainability
Reduces waste & promotes circular economy
Aesthetic
Wood-like texture
Strength
Lightweight yet tough
Composition
Ground rice husks
Dried
Mixed with PLA/ABS/PETG
Extruded filament
Challenges
Nozzle clogging: Requires nozzles ≥0.6mm
Moisture sensitivity: Needs drying
Mechanical testing: For strength, adhesion, flexibility
Applications
Eco-prototypes
Architectural models
Natural-finish art
Compostable packaging
What's Unique?
Automated Rice Husk Processing: Developing a low-energy process to grind, dry, and blend husks without excessive heating.