Journal
COMPOSITES PART B-ENGINEERING
Volume 156, Issue -, Pages 121-127Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2018.08.068
Keywords
Biocomposites; Accelerated thermal cycle; Mechanical properties; Crystallinity; Dynamic mechanical analysis
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Ageing behavior is one of the crucial factor for selection of material by designers and engineers, mainly for structural applications. Investigation of the ageing effect on biocomposites would supplement current knowledge and may help in encouraging their uses in real life applications. The current experimental investigation aims to determine the variation in various properties of Bagasse fibers reinforced Poly Lactic Acid (PLA) biocomposites during accelerated thermal ageing. Specimens of biocomposite were fabricated and exposed to temperature cycles of -20 degrees C and 65 degrees C (12 h each) for 12 weeks and characterized after every 4 weeks of exposure. Tensile and flexural properties exhibited steady improvement on exposure up to 8 weeks, followed by a reduction after ageing for 12 weeks. It can be concluded from X-ray diffraction (XRD) and dynamic mechanical analysis (DMA) that significant change in crystalline and glass transition behavior happens during the exposure period.
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