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Graphene and Carbon Nanotube-PLA Composite Feedstock Filament for Fused Deposition Modelling:Review

Prathamesh Shailesh Joshi, Chetan Tikaram Golhe, Suraj Jayant Gaikwad, Suraj Santosh Ghadi

Abstract


3D printing or AM has revolutionized the way of manufacturing by designing complex structure in atomized features which cannot be realized by conventional processing method. Many are adopting Additive Manufacturing over traditional method to manufacture sophisticate products from single or composite material. 3D printing has a demerit that  the mechanical properties of product suffer. To address this problem, this study is conducted for development of improved and sustainable feedback material for fused deposition modeling through reinforcement of Polylactic acid with graphene as nanocomposite. Composite with PLA-Graphene-MWCNT is also studied. Gr-PLA-composite with loading of 0.2%wt at each unit and PLA-Gr-MWCNT with loading of Gr 0.2%wt and 0.1wt% were extruded to form a filament for FDM. Lulzbot Mini is used to print the specimen according to ASTM D638 and D256. Mechanical properties are evaluated by tensile and Izod impact testing on UTM. The reinforcement of PLA with 0.2%wt Gr led to increase in mechanical properties by 47% increase in tensile strength and 18% increase in energy absorption. The specimen with PLA-Gr-MWCNT was viewed to have a subsequent increase at about 53% in tensile strength.


Keywords


3D printing, Additive Manufacturing, Lulzbot Mini, UTM, PLA-Gr-MWCNT.

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References


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