Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid Filament

In this work, an Acacia concinna filler was blended in a polylactic acid matrix using a single-screw extruder. A composite filament material made from an extruder was used to fabricate polylactic acid/25 wt% A. concinna (PLA/25 wt% AC) composites via a fused deposition modeling (FDM) technique. Comp...

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Main Authors: S. Muthu Natarajan, S. Senthil, P. Narayanasamy
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:International Journal of Polymer Science
Online Access:http://dx.doi.org/10.1155/2022/4761481
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author S. Muthu Natarajan
S. Senthil
P. Narayanasamy
author_facet S. Muthu Natarajan
S. Senthil
P. Narayanasamy
author_sort S. Muthu Natarajan
collection DOAJ
description In this work, an Acacia concinna filler was blended in a polylactic acid matrix using a single-screw extruder. A composite filament material made from an extruder was used to fabricate polylactic acid/25 wt% A. concinna (PLA/25 wt% AC) composites via a fused deposition modeling (FDM) technique. Composites were fabricated by varying layer thickness, infill density, and printing speed based on Taguchi L9 experimental design. Tensile, flexural, and impact tests were conducted on the printed composite samples as per the ASTM standards. The significance of factors impacting the mechanical properties was determined using analysis of variance. To estimate the strength of PLA/AC composites, mathematical models were developed. In addition, the fractured specimen was examined using scanning electron microscopy to determine the mechanism of fracture. Both the layer height and the infill percentage exhibited a positive influence on strength, which suggests that the layer height or the infill percentage, or both, will increase the material’s strength. The printing speed had a negative influence on the strength, which indicates that the strength decreases as the printing speed increases. The findings suggested that PLA/AC composites could be used to fabricate high-strength, lightweight components using FDM.
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publishDate 2022-01-01
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series International Journal of Polymer Science
spelling doaj-art-346dc9a8136f41f9967414a818b493f22025-02-03T01:19:58ZengWileyInternational Journal of Polymer Science1687-94302022-01-01202210.1155/2022/4761481Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid FilamentS. Muthu Natarajan0S. Senthil1P. Narayanasamy2Department of Mechanical EngineeringDepartment of Mechanical EngineeringDepartment of Mechanical EngineeringIn this work, an Acacia concinna filler was blended in a polylactic acid matrix using a single-screw extruder. A composite filament material made from an extruder was used to fabricate polylactic acid/25 wt% A. concinna (PLA/25 wt% AC) composites via a fused deposition modeling (FDM) technique. Composites were fabricated by varying layer thickness, infill density, and printing speed based on Taguchi L9 experimental design. Tensile, flexural, and impact tests were conducted on the printed composite samples as per the ASTM standards. The significance of factors impacting the mechanical properties was determined using analysis of variance. To estimate the strength of PLA/AC composites, mathematical models were developed. In addition, the fractured specimen was examined using scanning electron microscopy to determine the mechanism of fracture. Both the layer height and the infill percentage exhibited a positive influence on strength, which suggests that the layer height or the infill percentage, or both, will increase the material’s strength. The printing speed had a negative influence on the strength, which indicates that the strength decreases as the printing speed increases. The findings suggested that PLA/AC composites could be used to fabricate high-strength, lightweight components using FDM.http://dx.doi.org/10.1155/2022/4761481
spellingShingle S. Muthu Natarajan
S. Senthil
P. Narayanasamy
Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid Filament
International Journal of Polymer Science
title Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid Filament
title_full Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid Filament
title_fullStr Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid Filament
title_full_unstemmed Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid Filament
title_short Investigation of Mechanical Properties of FDM-Processed Acacia concinna–Filled Polylactic Acid Filament
title_sort investigation of mechanical properties of fdm processed acacia concinna filled polylactic acid filament
url http://dx.doi.org/10.1155/2022/4761481
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AT ssenthil investigationofmechanicalpropertiesoffdmprocessedacaciaconcinnafilledpolylacticacidfilament
AT pnarayanasamy investigationofmechanicalpropertiesoffdmprocessedacaciaconcinnafilledpolylacticacidfilament