A New Rice Husk-Plastic Composite Powder Preparation Process for Selective Laser Sintering Fabrication

Abstract:

A new powder material, rice husk-plastic composite powder (RPC), was successfully developed for selective laser sintering (SLS) process. RPC is mainly composed of rice husk powder and a hot-melt adhesive powder, it is a green and biological material and its most important advantage is low-cost, but because the hull surface of rice is burr and not smooth, easily jammed between particles, poor mobility, is not the medium of easy flowing, so mixing process was successfully developed to prepare RPC powders. The preparation process is divided to three steps. First, before mix, the rice husk power is dried for reducing the hydrophilic nature of rice husk fiber and improving the wettability and the adhesion actions of the interface. Then, put the PES hot melt adhesive, the dried wood powder and the acetone solution which contain coupling agent and initiator together to mix evenly. At last, dry the basic material at the constant temperature of 45±2°C in the oven, add the organic filler and light stabilizer. Finally, RPC powder for SLS is got. As the result of SLS fabrication, part made by RPC powder is got, its mechanical properties and dimensional accuracy is satisfied.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 1577-1581
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.1577
• Online since: August 2013
• Authors: Wei Liang Zeng*, Yan Ling Guo, Ying Liu, Yan Ping Gong, Pei Feng Zhao, Chi Lei Li, Jian Wei Zhao
• Keywords: Preparation Process, Rice Husk-Plastic Composite, Selective Laser Sintering

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