Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beam
Graphene nanoplatelet (GNP)/poly(methyl methacrylate) (PMMA) nanocomposite solution was spray coated on a glass fibre reinforced polymer composite (GFRP) beam with different initial electrical resistance (R0). Scotch tape erosion method was used to tailor the R0 of the sensors. Beams and the sensors...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2019-11-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0010014&mi=cd |
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| author | D. Sethy S. Makireddi F. V. Varghese K. Balasubramaniam |
| author_facet | D. Sethy S. Makireddi F. V. Varghese K. Balasubramaniam |
| author_sort | D. Sethy |
| collection | DOAJ |
| description | Graphene nanoplatelet (GNP)/poly(methyl methacrylate) (PMMA) nanocomposite solution was spray coated on a glass fibre reinforced polymer composite (GFRP) beam with different initial electrical resistance (R0). Scotch tape erosion method was used to tailor the R0 of the sensors. Beams and the sensors were characterized by computed tomography (CT) and scanning electron microscopy (SEM) respectively. The piezoresistive behaviour of these sensors was evaluated in monotonic, step and cyclic loading conditions. These spray coated sensors offered good sensitivity (38.5 times) as compared to a strain gauge. A gauge factor (GF) of 55±0.5, 70±2, and 77±1 was obtained for R0 of 1, 7 and 21 kΩ GNP layers, respectively. Sensors showed good response and stability under the step and cyclic loading conditions. The ease in the process of application coupled with good sensitivity demonstrates that the GNP/PMMA spray coated sensor can be a potential candidate for the futuristic multi-functional materials for structural health monitoring. |
| format | Article |
| id | doaj-art-623d8250a9e94131bce07c2bb46c1f07 |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2019-11-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-623d8250a9e94131bce07c2bb46c1f072025-08-20T03:56:23ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2019-11-0113111018102510.3144/expresspolymlett.2019.88Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beamD. SethyS. MakireddiF. V. VargheseK. BalasubramaniamGraphene nanoplatelet (GNP)/poly(methyl methacrylate) (PMMA) nanocomposite solution was spray coated on a glass fibre reinforced polymer composite (GFRP) beam with different initial electrical resistance (R0). Scotch tape erosion method was used to tailor the R0 of the sensors. Beams and the sensors were characterized by computed tomography (CT) and scanning electron microscopy (SEM) respectively. The piezoresistive behaviour of these sensors was evaluated in monotonic, step and cyclic loading conditions. These spray coated sensors offered good sensitivity (38.5 times) as compared to a strain gauge. A gauge factor (GF) of 55±0.5, 70±2, and 77±1 was obtained for R0 of 1, 7 and 21 kΩ GNP layers, respectively. Sensors showed good response and stability under the step and cyclic loading conditions. The ease in the process of application coupled with good sensitivity demonstrates that the GNP/PMMA spray coated sensor can be a potential candidate for the futuristic multi-functional materials for structural health monitoring.http://www.expresspolymlett.com/letolt.php?file=EPL-0010014&mi=cdPolymer compositesNanomaterialsGrapheneCoatingPiezoresistivity |
| spellingShingle | D. Sethy S. Makireddi F. V. Varghese K. Balasubramaniam Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beam eXPRESS Polymer Letters Polymer composites Nanomaterials Graphene Coating Piezoresistivity |
| title | Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beam |
| title_full | Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beam |
| title_fullStr | Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beam |
| title_full_unstemmed | Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beam |
| title_short | Piezoresistive behaviour of graphene nanoplatelet (GNP)/PMMA spray coated sensors on a polymer matrix composite beam |
| title_sort | piezoresistive behaviour of graphene nanoplatelet gnp pmma spray coated sensors on a polymer matrix composite beam |
| topic | Polymer composites Nanomaterials Graphene Coating Piezoresistivity |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0010014&mi=cd |
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