Flexural Strength of PLA/Kenaf Green Composite

Abstract:

PLA toughened by kenaf green composite were produced involving chemi-mechanical method. The effect of chemical treatment on the surface morphology and flexural properties of PLA/kenaf green composite was investigated. The effect of kenaf fiber loading which is varying for 2%, 4% and 6% on the flexural properties was also investigated. The sample was test for flexural properties according to ASTM D790 and the surface morphology was observed using scanning electron microscope (SEM). The results show that PLA composite toughened with 6% of kenaf gave higher value for MOE which is 944.46 MPa compared to 2% and 4% kenaf loading. This is due to a stiffer material was introduced into PLA matrix. The MOR value for neat PLA is 38.78Mpa. However, the value for MOR was decreased by increasing fiber loading which are 33.43, 28.93 and 29.69 Mpa for 2%, 4% and 6% respectively.

• Periodical: Advanced Materials Research (Volume 748)
• Pages: 11-15
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.748.11
• Online since: August 2013
• Authors: N.N. Azmi, Siti Norasmah Surip, Wan Nor Raihan Wan Jaafar
• Keywords: Chemi-Mechanical, Flexural Modulus (MOE), Flexural Strength (MOR), Poly(lactic acid) (PLA), Scanning Electron Microscope (SEM)

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