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A Flexible and Low-Cost Tactile Sensor Produced by Screen Printing of Carbon Black/PVA Composite on Cellulose Paper

Sensors (Basel, Switzerland), 2020-05, Vol.20 (10), p.2908 [Peer Reviewed Journal]

2020. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2020 by the authors. 2020 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s20102908 ;PMID: 32455546

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Title:
A Flexible and Low-Cost Tactile Sensor Produced by Screen Printing of Carbon Black/PVA Composite on Cellulose Paper
Author: Sekertekin, Yeter ; Bozyel, Ibrahim ; Gokcen, Dincer
Subjects: Carbon black ; Carbon fiber reinforced plastics ; Cellulose ; Comparative studies ; composite ink ; Compressive properties ; Detection ; Electrical properties ; Electronics industry ; Flexibility ; Graphene ; Graphite ; Impedance ; impedance sensor ; Measurement techniques ; Mechanical properties ; Methods ; Nanoparticles ; paper sensor ; piezocapacitive ; piezoresistive ; Polymers ; Polyvinyl alcohol ; Production costs ; Screen printing ; Sensors ; Strain gauges ; Substrates ; Tactile sensors (robotics) ; Viscosity
Is Part Of: Sensors (Basel, Switzerland), 2020-05, Vol.20 (10), p.2908
Description: This study presents the design and fabrication of a flexible tactile sensor printed on a cellulose paper substrate using a carbon black (CB) - filled polyvinyl alcohol (PVA) polymer matrix as ink material. In the design, electrodes are obtained by screen printing of CB/PVA composite on dielectric cellulose paper. The screen-printing method is preferred for fabrication because of its simplicity and low manufacturing cost. The tactile sensor is formed by overlapping two ink-printed sheets. Electrical properties are investigated under compressive and tensile strains. The results indicate that the tactile sensor configuration and materials can be used for piezoresistive, capacitive, and also impedance sensors. The same tactile sensor structure is also examined using a commercial carbon-based ink for performance comparison. The comparative study indicates that CB/PVA ink screen-printed on paper demonstrates superior sensitivity for capacitive sensing with low hysteresis, as well as low response and recovery times. The piezoresistive-sensing properties of CB/PVA on cellulose paper show a gauge factor (GF) of 10.68, which is also very promising when conventional metal strain gauges are considered. CB/PVA screen-printed on cellulose paper features impedance-sensing properties and is also sensitive to the measurement frequency. Therefore, the response type of the sensor can be altered with the frequency.
Publisher: Switzerland: MDPI AG
Language: English
Identifier: ISSN: 1424-8220
EISSN: 1424-8220
DOI: 10.3390/s20102908
PMID: 32455546
Source: Geneva Foundation Free Medical Journals at publisher websites
AUTh Library subscriptions: ProQuest Central
PubMed Central
ROAD: Directory of Open Access Scholarly Resources
DOAJ Directory of Open Access Journals

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A Flexible and Low-Cost Tactile Sensor Produced by Screen Printing of Carbon Black/PVA Composite on Cellulose Paper

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