Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing Applications

Polyaniline (PANI) has recently gained great attention due to its outstanding electrical properties and ease of processability; these characteristics make it ideal for the manufacturing of polymer blends. In this study, the processing and piezoresistive characterization of polymer composites resulti...

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Main Authors: Andrés Felipe Cruz-Pacheco, Leonel Paredes-Madrid, Jahir Orozco, Jairo Alberto Gómez-Cuaspud, Carlos R. Batista-Rodríguez, Carlos Andrés Palacio Gómez
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/12/5/1164
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author Andrés Felipe Cruz-Pacheco
Leonel Paredes-Madrid
Jahir Orozco
Jairo Alberto Gómez-Cuaspud
Carlos R. Batista-Rodríguez
Carlos Andrés Palacio Gómez
author_facet Andrés Felipe Cruz-Pacheco
Leonel Paredes-Madrid
Jahir Orozco
Jairo Alberto Gómez-Cuaspud
Carlos R. Batista-Rodríguez
Carlos Andrés Palacio Gómez
author_sort Andrés Felipe Cruz-Pacheco
collection DOAJ
description Polyaniline (PANI) has recently gained great attention due to its outstanding electrical properties and ease of processability; these characteristics make it ideal for the manufacturing of polymer blends. In this study, the processing and piezoresistive characterization of polymer composites resulting from the blend of PANI with ultra-high molecular weight polyethylene (UHMWPE) in different weight percentages (wt %) is reported. The PANI/UHMWPE composites were uniformly homogenized by mechanical mixing and the pellets were manufactured by compression molding. A total of four pellets were manufactured, with PANI percentages of 20, 25, 30 and 35 wt %. Fourier-transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), differential thermal analysis (DTA), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were used to confirm the effective distribution of PANI and UHMWPE particles in the pellets. A piezoresistive characterization was performed on the basis of compressive forces at different voltages; it was found that the error metrics of hysteresis and drift were influenced by the operating voltage. In general, larger voltages lowered the error metrics, but a reduction in sensor sensitivity came along with voltage increments. In an attempt to explain such a phenomenon, the authors developed a microscopic model for the piezoresistive response of PANI composites, aiming towards a broader usage of PANI composites in strain/stress sensing applications as an alternative to carbonaceous materials.
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spelling doaj.art-c95c97b4c90d49af8d22743ee728c9df2023-11-20T00:58:11ZengMDPI AGPolymers2073-43602020-05-01125116410.3390/polym12051164Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing ApplicationsAndrés Felipe Cruz-Pacheco0Leonel Paredes-Madrid1Jahir Orozco2Jairo Alberto Gómez-Cuaspud3Carlos R. Batista-Rodríguez4Carlos Andrés Palacio Gómez5Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, ColombiaFaculty of Mechanic, Electronic and Biomedical Engineering, Universidad Antonio Nariño, Tunja 150002, ColombiaMax Planck Tandem Group in Nanobioengineering, University of Antioquia. Complejo Ruta N, Calle 67 No. 52–20, Medellín 050010, ColombiaFacultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, ColombiaFaculty of Mechanic, Electronic and Biomedical Engineering, Universidad Antonio Nariño, Tunja 150002, ColombiaFaculty of Sciences, Universidad Antonio Nariño, Tunja 150002, ColombiaPolyaniline (PANI) has recently gained great attention due to its outstanding electrical properties and ease of processability; these characteristics make it ideal for the manufacturing of polymer blends. In this study, the processing and piezoresistive characterization of polymer composites resulting from the blend of PANI with ultra-high molecular weight polyethylene (UHMWPE) in different weight percentages (wt %) is reported. The PANI/UHMWPE composites were uniformly homogenized by mechanical mixing and the pellets were manufactured by compression molding. A total of four pellets were manufactured, with PANI percentages of 20, 25, 30 and 35 wt %. Fourier-transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), differential thermal analysis (DTA), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were used to confirm the effective distribution of PANI and UHMWPE particles in the pellets. A piezoresistive characterization was performed on the basis of compressive forces at different voltages; it was found that the error metrics of hysteresis and drift were influenced by the operating voltage. In general, larger voltages lowered the error metrics, but a reduction in sensor sensitivity came along with voltage increments. In an attempt to explain such a phenomenon, the authors developed a microscopic model for the piezoresistive response of PANI composites, aiming towards a broader usage of PANI composites in strain/stress sensing applications as an alternative to carbonaceous materials.https://www.mdpi.com/2073-4360/12/5/1164polyanilinepolyethylenepiezoresistive sensorpressure sensorpolymer composite
spellingShingle Andrés Felipe Cruz-Pacheco
Leonel Paredes-Madrid
Jahir Orozco
Jairo Alberto Gómez-Cuaspud
Carlos R. Batista-Rodríguez
Carlos Andrés Palacio Gómez
Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing Applications
Polymers
polyaniline
polyethylene
piezoresistive sensor
pressure sensor
polymer composite
title Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing Applications
title_full Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing Applications
title_fullStr Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing Applications
title_full_unstemmed Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing Applications
title_short Assessing the Influence of the Sourcing Voltage on Polyaniline Composites for Stress Sensing Applications
title_sort assessing the influence of the sourcing voltage on polyaniline composites for stress sensing applications
topic polyaniline
polyethylene
piezoresistive sensor
pressure sensor
polymer composite
url https://www.mdpi.com/2073-4360/12/5/1164
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