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Development and Mechanical/Thermal Analysis of Basalt/Sisal Fiber Reinforced Poly(Lactic Acid) Composites

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In this study, an attempt has been made to reinforce Poly Lactic Acid (PLA) with Basalt/Sisal fibers. Three different proportions of hybrid composites were prepared by blending PLA and treated basalt/sisal fibers using Twin Screw Extruder. The extruded pellets were then moulded to ASTM standards using Injection Moulding technique. The mechanical properties such as tensile, flexural and Impact strength were investigated and DSC is employed to study the crystallization and melting behavior of composites. Thermo—mechanical properties of hybrid composites were studied using Dynamic Mechanical Analysis (DMA) and Thermo Gravimetric Analysis (TGA). Scanning Electron Microscopy (SEM) conducted on the fracture surfaces of the hybrid composites reveals superior interfacial linkage between the hybrid fiber and Poly lactic acid matrix. The results suggest that PLA reinforced with 10 wt% of basalt and 10 wt% of sisal fibers (PBSi-3) were found to have good mechanical and thermal properties when compared to PBSi-2 (7.5% Basalt and 7.5% Sisal) and PBSi-1 (5% Basalt and 5% Sisal) composites.
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Keywords: BASALT/SISAL HYBRID FIBER; DMA; DSC; INJECTION MOULDING PROCESS; PLA; SCANNING ELECTRON MICROSCOPY; TGA; TWIN SCREW EXTRUDER

Document Type: Research Article

Publication date: June 1, 2016

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  • Journal of Advanced Microscopy Research (JAMR) provides a forum for rapid dissemination of important developments in high-resolution microscopy techniques to image, characterize and analyze man-made and natural samples; to study physicochemical phenomena such as abrasion, adhesion, corrosion and friction; to perform micro and nanofabrication, lithography, patterning, micro and nanomanipulation; theory and modeling, as well as their applications in all areas of science, engineering, and medicine.
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