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Durability of Starch Based Biodegradable Plastics Reinforced with Manila Hemp Fibers

Niihama National College of Technology, 7-1 yakumo-cho, Niihama-shi, Ehime 792-0852, Japan
Materials 2011, 4(3), 457-468; https://doi.org/10.3390/ma4030457
Received: 18 January 2011 / Revised: 16 February 2011 / Accepted: 17 February 2011 / Published: 25 February 2011
The biodegradability of Manila hemp fiber reinforced biodegradable plastics was studied for 240 days in a natural soil and 30 days in a compost soil. After biodegradability tests, weights were measured and both tensile strength tests and microscopic observation were performed to evaluate the biodegradation behavior of the composites. The results indicate that the tensile strength of the composites displays a sharp decrease for up to five days, followed by a gradual decrease. The weight loss and the reduction in tensile strength of biodegradable composite materials in the compost soil are both significantly greater than those buried in natural soil. The biodegradability of these composites is enhanced along the lower portion because this area is more easily attacked by microorganisms. View Full-Text
Keywords: biodegradable composites; Manila hemp; biodegradable plastic; natural fiber; biodegradability biodegradable composites; Manila hemp; biodegradable plastic; natural fiber; biodegradability
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Ochi, S. Durability of Starch Based Biodegradable Plastics Reinforced with Manila Hemp Fibers. Materials 2011, 4, 457-468.

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