Conductive FDM Filament: Electrical Resistivity Assessment and Sensor Applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F23%3A00367547" target="_blank" >RIV/68407700:21230/23:00367547 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10168513" target="_blank" >https://ieeexplore.ieee.org/document/10168513</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ISSE57496.2023.10168513" target="_blank" >10.1109/ISSE57496.2023.10168513</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Conductive FDM Filament: Electrical Resistivity Assessment and Sensor Applications

Popis výsledku v původním jazyce

A conductive filament proposed for Fused Deposition Modeling was produced and evaluated in terms of electrical resistivity. Thermoplastic polyester polylactic acid (PLA) was selected as a pristine polymer. Carbon black (CB) was added to PLA to improve the electrical conductivity. The incorporation ratio of the CB in PLA was set to 30 wt.%. Neat polymer and another commercially available filament with CB filling were included in the measurements and comparison. Volume and surface resistivity was measured perpendicularly to the printing direction. Further, the resistivity evaluation of the materials was performed in the same direction as the filament deposition. This resistivity was determined using a four-wire measuring method and purposefully designed specimens. A decrease of twelve orders of volume resistivity was observed for filled PLA. Mechanical properties were determined via tensile testing. The behavior of the material under thermomechanical loading was observed by dynamic mechanical analysis (DMA). Glass transition temperature was determined from DMA diagrams. A touch sensor in the form of circular electrodes was prepared for the purpose of practical use assessment. The functionality of the sensor was verified by switching the transistor, which controlled the LED. Magnitudes of electric current flowing through the sensor at various supplied voltage levels were monitored. The second practical utilization was demonstrated by the strain gauge. The sensor for bending detection was designed to exhibit resistivity in hundreds of kiloohms. The strain sensing behavior of the strain gauge was determined by conducting tensile loading.

Název v anglickém jazyce

Conductive FDM Filament: Electrical Resistivity Assessment and Sensor Applications

Popis výsledku anglicky

A conductive filament proposed for Fused Deposition Modeling was produced and evaluated in terms of electrical resistivity. Thermoplastic polyester polylactic acid (PLA) was selected as a pristine polymer. Carbon black (CB) was added to PLA to improve the electrical conductivity. The incorporation ratio of the CB in PLA was set to 30 wt.%. Neat polymer and another commercially available filament with CB filling were included in the measurements and comparison. Volume and surface resistivity was measured perpendicularly to the printing direction. Further, the resistivity evaluation of the materials was performed in the same direction as the filament deposition. This resistivity was determined using a four-wire measuring method and purposefully designed specimens. A decrease of twelve orders of volume resistivity was observed for filled PLA. Mechanical properties were determined via tensile testing. The behavior of the material under thermomechanical loading was observed by dynamic mechanical analysis (DMA). Glass transition temperature was determined from DMA diagrams. A touch sensor in the form of circular electrodes was prepared for the purpose of practical use assessment. The functionality of the sensor was verified by switching the transistor, which controlled the LED. Magnitudes of electric current flowing through the sensor at various supplied voltage levels were monitored. The second practical utilization was demonstrated by the strain gauge. The sensor for bending detection was designed to exhibit resistivity in hundreds of kiloohms. The strain sensing behavior of the strain gauge was determined by conducting tensile loading.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2023 46th International Spring Seminar on Electronics Technology (ISSE)

ISBN

979-8-3503-3484-5

ISSN

2161-2528

e-ISSN

2161-2536

Počet stran výsledku

7

Strana od-do

—

Název nakladatele

IEEE Press

Místo vydání

New York

Místo konání akce

Temešvár

Datum konání akce

10. 5. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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