Investigation on 3D Printing of Graphene and Multi-walled Carbon Nanotube Mixed Flexible Electrically Conductive Parts Using Fused Filament Fabrication

Bajpai, Arpit; Jain, Prashant K.

doi:10.1007/s11665-022-07574-x

Cited by 11 publications

(2 citation statements)

References 31 publications

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“…Conductive polymer‐based composites (CPC) exhibit desirable properties such as flexibility, 1,2 processability, 3,4 chemical resistance, 5 lightweight, 6,7 and tunability of electrical conductivity 8,9 . CPC have gradually replaced metal conductive materials 10 in some fields due to their advantages.…”

Section: Introductionmentioning

confidence: 99%

Low percolation threshold polyvinylidene fluoride/multi‐walled carbon nanotube composites: A perspective of electrical conductivity, crystalline, rheological and mechanical properties

Tang,

Yang,

Duanmu

et al. 2024

Polymer Composites

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Recently, conductive polymer‐based composites (CPC) have gained considerable interest for their outstanding processing, mechanical, electrical properties, and resistance tunability. Multi‐walled carbon nanotube (MWCNT) was introduced into polyvinylidene fluoride (PVDF) as the conductive filler via means of melt blending in this work. Effects of MWCNT on crystalline structure, thermodynamic behavior, electrical conductivity, processing and mechanical properties of PVDF/MWCNT were under investigation. By measuring the volume resistivity of PVDF/MWCNT, it was observed to have declined from 1.54 × 1012 to 3.71 × 101 Ω∙m with the MWCNT content changed from 0.7 to 1 vol%, which plummeted by 11 orders of magnitude. Therefore, it can be inferred that the percolation threshold of MWCNT lies within the range of 0.7–1 vol%. Additionally, the percolation threshold is obtained as 0.81 vol% by fitting using the percolation theory equation. Around the percolation threshold, PVDF/MWCNT composites exhibit negligible alterations in their rheological properties when contrasted with pure PVDF, yet their mechanical properties are improved. Furthermore, MWCNT does not substantially impact the crystalline structure and thermodynamic behavior of PVDF/MWCNT.Highlights The percolation threshold of MWCNT in PVDF is 0.81 vol%. The volume resistivity of the 1 vol% MWCNT sample was only 3.71 Ω∙m. 1 vol% MWCNT exhibit favorable rheological and mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Low percolation threshold polyvinylidene fluoride/multi‐walled carbon nanotube composites: A perspective of electrical conductivity, crystalline, rheological and mechanical properties

Tang,

Yang,

Duanmu

et al. 2024

Polymer Composites

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“…1 Popularity of this technique has increased for a number of materials, including polymers, metals, ceramics, and multimaterials. [2][3][4][5][6][7] AM appears promising for a variety of applications due to its ability to create complex 3D objects in a freeform manner without the need for expensive machinery or machining. Different AM techniques have been developed over the past few decades to produce complex designs with designed mechanical or functional qualities.…”

Section: Introductionmentioning

confidence: 99%

Effect of standoff distance on printability of aluminum 5356 alloy through extrusion-based metal additive manufacturing using induction heating

Choubey,

Jain

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Induction heating as a heat source in extrusion-based metal additive manufacturing (EMAM) is gaining popularity due to its inherent benefits as a safe, clean, and precise heating source. Metal wire as a feedstock material is economically viable and highly efficient in terms of material utilization compared to powder feedstock materials. The combination of induction heating with metal wire as a feedstock through an EMAM system has been investigated in this article. The article aims to identify the standoff distance for printing aluminum 5356 in EMAM using induction heating ( Figure 1 ). In induction heating-based AM, it is crucial to identify the standoff distance between the extruder and substrate to maintain a constant extruder tip temperature and ensure a consistent liquid/solid fraction ratio for uniform material deposition. The approach adopted in this article is to perform electromagnetic and thermal multifield coupling model simulations of extruder with the substrate through a two-dimensional axe-symmetrical model using COMSOL multiphysics. The simulation model analyzed the extruder tip temperature at variable standoff distance cases during extruder heating and material deposition processes. A practical approach for thermal cartography has been used to identify extruder tip temperature during experimentation using an infrared imager. The extruder tip temperature results obtained through simulation have been compared with experimental results and found to be in close agreement with each other. A favorable temperature range of 575–625 °C is obtained through a standoff distance of 2.0 mm compared to other standoff distances taken for the study.

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The role of additive manufacturing in the study of carbon fiber-reinforced polymer composite

Meshram,

Gupta,

Kulthe

et al. 2024

Polym. Bull.

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Investigation on 3D Printing of Graphene and Multi-walled Carbon Nanotube Mixed Flexible Electrically Conductive Parts Using Fused Filament Fabrication

Cited by 11 publications

References 31 publications

Low percolation threshold polyvinylidene fluoride/multi‐walled carbon nanotube composites: A perspective of electrical conductivity, crystalline, rheological and mechanical properties

Low percolation threshold polyvinylidene fluoride/multi‐walled carbon nanotube composites: A perspective of electrical conductivity, crystalline, rheological and mechanical properties

Effect of standoff distance on printability of aluminum 5356 alloy through extrusion-based metal additive manufacturing using induction heating

The role of additive manufacturing in the study of carbon fiber-reinforced polymer composite

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