2022
DOI: 10.3390/s22114241
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Exploring the Capabilities of a Piezoresistive Graphene-Loaded Waterborne Paint for Discrete Strain and Spatial Sensing

Abstract: The development of a piezoresistive coating produced from dispersing graphene nanoplatelets (GNPs) inside a commercial water-based polyurethane paint is presented. The feasibility of its exploitation for realizing highly sensitive discrete strain sensors and to measure spatial strain distribution using linear and two-dimensional depositions was investigated. Firstly, the production process was optimized to achieve the best electromechanical response. The obtained materials were then subjected to different char… Show more

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Cited by 4 publications
(3 citation statements)
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“…Piezoresistive self-sensing has been leveraged in a plethora of engineering venues including civil [5,6], aerospace [7,8], robotics [9][10][11], and biomedical [12,13]. Additionally, piezoresistivity has been explored in varied material systems including cements [14,15], composites [16], paints and coatings [17,18], thin films and skins [19,20], and even additively manufactured materials [21].…”
Section: Introductionmentioning
confidence: 99%
“…Piezoresistive self-sensing has been leveraged in a plethora of engineering venues including civil [5,6], aerospace [7,8], robotics [9][10][11], and biomedical [12,13]. Additionally, piezoresistivity has been explored in varied material systems including cements [14,15], composites [16], paints and coatings [17,18], thin films and skins [19,20], and even additively manufactured materials [21].…”
Section: Introductionmentioning
confidence: 99%
“…All these types of widespread coatings are used in various fields of technology and medicine. In addition, paint coatings are also used as sensors to determine the temperature and coefficient of thermal conductivity [ 11 , 12 ], pressure, and deformations in the studied samples [ 13 , 14 ].…”
Section: Introductionmentioning
confidence: 99%
“…A number of excellent properties, such as ultrahigh electrical conductivity, carrier mobility, and thermal conductivity, have been found theoretically and experimentally [ 7 , 8 , 9 , 10 ], making graphene a promising material for improving the sensitivity, response speed, and thermal conductivity of electronic devices. A great amount of effort has been exerted toward realizing the application of graphene in electronic devices, such as in flexible touch screens [ 11 ], high-frequency transistors [ 12 ], and high-sensitivity sensors [ 13 , 14 , 15 , 16 ]. Studies on graphene microelectromechanical system (MEMS) pressure sensors have attracted a certain degree of attention [ 17 , 18 , 19 , 20 , 21 , 22 ], as this would be advantageous for the miniaturization and batch production of sensors.…”
Section: Introductionmentioning
confidence: 99%