Blending of Natural Fibres and Thermoplastics by Screwless Extrusion

Abstract:

Natural fibres, such as sisal, flax and woodfibres, are relatively inexpensive and originate from renewable resources. Thermoplastic polymers, such as polypropylene (PP), high density polyethylene (HDPE) and waste plastics, possess shorter manufacturing cycle times and reprocessability. Natural fibre-reinforced thermoplastic composite materials exhibit favourable values of modulus and strength when the fibres are properly compounded with the polymers. Common methods for manufacturing natural fibre-reinforced thermoplastic composites, injection moulding and extrusion, require pre-compounding of the fibres and the thermoplastic due to the large difference in densities of the loose fibres and thermoplastic materials. Development and analysis of a screwless extruder that employs a reliable and low technology process for melt blending natural fibres and thermoplastic polymers is the main objective of this study.

• Periodical: Advanced Materials Research (Volumes 47-50)
• Pages: 1141-1144
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.47-50.1141
• Online since: June 2008
• Authors: Krishnan Jayaraman, Rex Halliwell
• Keywords: High Density Polyethylene (HDPE), Melt Blending, Natural Fiber, Natural Fibre-Reinforced Composite, New Zealand Flax, Polypropylene (PP), Screwless Extrusion, Sisal, Thermoplastic Polymer, Waste Plastics Mix, Woodfibres

References

This article has no references.