Cargando…
Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane
Flexible pressure sensors with piezoresistive polymer composites can be integrated into elastomers to measure pressure changes in sealings, preemptively indicating a replacement is needed before any damage or leakage occurs. Integrating small percentages of high aspect ratio multi-walled carbon nano...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347260/ https://www.ncbi.nlm.nih.gov/pubmed/34372305 http://dx.doi.org/10.3390/s21155069 |
_version_ | 1783735043492937728 |
---|---|
author | de Rijk, Tim Mike Lang, Walter |
author_facet | de Rijk, Tim Mike Lang, Walter |
author_sort | de Rijk, Tim Mike |
collection | PubMed |
description | Flexible pressure sensors with piezoresistive polymer composites can be integrated into elastomers to measure pressure changes in sealings, preemptively indicating a replacement is needed before any damage or leakage occurs. Integrating small percentages of high aspect ratio multi-walled carbon nanotubes (MWCNTs) into polymers does not significantly change its mechanical properties but highly affects its electrical properties. This research shows a pressure sensor based on homogeneous dispersed MWCNTs in polydimethylsiloxane with a high sensitivity region (0.13% kPa [Formula: see text] , 0–200 kPa) and sensitive up to 500 kPa. A new 3D-printed mold is developed to directly deposit the conductive polymer on the electrode structures, enabling sensor thicknesses as small as 100 μm. |
format | Online Article Text |
id | pubmed-8347260 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83472602021-08-08 Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane de Rijk, Tim Mike Lang, Walter Sensors (Basel) Article Flexible pressure sensors with piezoresistive polymer composites can be integrated into elastomers to measure pressure changes in sealings, preemptively indicating a replacement is needed before any damage or leakage occurs. Integrating small percentages of high aspect ratio multi-walled carbon nanotubes (MWCNTs) into polymers does not significantly change its mechanical properties but highly affects its electrical properties. This research shows a pressure sensor based on homogeneous dispersed MWCNTs in polydimethylsiloxane with a high sensitivity region (0.13% kPa [Formula: see text] , 0–200 kPa) and sensitive up to 500 kPa. A new 3D-printed mold is developed to directly deposit the conductive polymer on the electrode structures, enabling sensor thicknesses as small as 100 μm. MDPI 2021-07-27 /pmc/articles/PMC8347260/ /pubmed/34372305 http://dx.doi.org/10.3390/s21155069 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article de Rijk, Tim Mike Lang, Walter Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane |
title | Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane |
title_full | Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane |
title_fullStr | Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane |
title_full_unstemmed | Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane |
title_short | Low-Cost and Highly Sensitive Pressure Sensor with Mold-Printed Multi-Walled Carbon Nanotubes Dispersed in Polydimethylsiloxane |
title_sort | low-cost and highly sensitive pressure sensor with mold-printed multi-walled carbon nanotubes dispersed in polydimethylsiloxane |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8347260/ https://www.ncbi.nlm.nih.gov/pubmed/34372305 http://dx.doi.org/10.3390/s21155069 |
work_keys_str_mv | AT derijktimmike lowcostandhighlysensitivepressuresensorwithmoldprintedmultiwalledcarbonnanotubesdispersedinpolydimethylsiloxane AT langwalter lowcostandhighlysensitivepressuresensorwithmoldprintedmultiwalledcarbonnanotubesdispersedinpolydimethylsiloxane |