3D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical properties
Electrically conductive composite materials are widely used for several applications, particularly flexible strain sensors for wearable electronic devices to detect human motions or apply to soft robotic technologies. Among the carbon nanotube (CNT) composites for strain sensors, the CNT composites...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Journal of Science: Advanced Materials and Devices |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468217923000151 |
| _version_ | 1797820663799480320 |
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| author | Nutthapong Poompiew Prasit Pattananuwat Chuanchom Aumnate Allen Jonathan Román Tim A. Osswald Pranut Potiyaraj |
| author_facet | Nutthapong Poompiew Prasit Pattananuwat Chuanchom Aumnate Allen Jonathan Román Tim A. Osswald Pranut Potiyaraj |
| author_sort | Nutthapong Poompiew |
| collection | DOAJ |
| description | Electrically conductive composite materials are widely used for several applications, particularly flexible strain sensors for wearable electronic devices to detect human motions or apply to soft robotic technologies. Among the carbon nanotube (CNT) composites for strain sensors, the CNT composites with polypyrrole (PPy) have been scarcely found for electromechanical property improvement via digital light processing (DLP) 3D printing. Thus, this research presents a 3D printing fabrication of flexible polyurethane/CNT/PPy (FPU/CNT/PPy) composites for high complexity and model specifications, particularly strain sensing. The FPU/CNT/PPy composites were prepared as photopolymer resin with various proportions of the three components. The composites successfully achieved a gauge factor of 91.9 at 20 percent strain with high durability in 100 stretching-releasing cycles. More than 85% of printing accuracy was also found under the DLP 3D printing method. The small deformation of the composites could be detected during the stretching-releasing process during time-dependent testing. Examples of simple human activity and complex spring motion could be successfully detected due to the high responsibility and reproducibility of the finger motion. The composites mentioned in this study could reach the field of strain sensing and can further be applied to other fields such as healthcare and soft robotics. |
| first_indexed | 2024-03-13T09:41:36Z |
| format | Article |
| id | doaj.art-79b428da67c04da497e6d4fa9f11d2a3 |
| institution | Directory Open Access Journal |
| issn | 2468-2179 |
| language | English |
| last_indexed | 2024-03-13T09:41:36Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj.art-79b428da67c04da497e6d4fa9f11d2a32023-05-25T04:24:46ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792023-06-01821005463D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical propertiesNutthapong Poompiew0Prasit Pattananuwat1Chuanchom Aumnate2Allen Jonathan Román3Tim A. Osswald4Pranut Potiyaraj5Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, ThailandDepartment of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, ThailandMetallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Bangkok, Thailand; Corresponding author. Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, 10330, ThailandPolymer Engineering Center, Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, WI, 53706, USAPolymer Engineering Center, Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, WI, 53706, USADepartment of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Bangkok, Thailand; Corresponding author. Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, ThailandElectrically conductive composite materials are widely used for several applications, particularly flexible strain sensors for wearable electronic devices to detect human motions or apply to soft robotic technologies. Among the carbon nanotube (CNT) composites for strain sensors, the CNT composites with polypyrrole (PPy) have been scarcely found for electromechanical property improvement via digital light processing (DLP) 3D printing. Thus, this research presents a 3D printing fabrication of flexible polyurethane/CNT/PPy (FPU/CNT/PPy) composites for high complexity and model specifications, particularly strain sensing. The FPU/CNT/PPy composites were prepared as photopolymer resin with various proportions of the three components. The composites successfully achieved a gauge factor of 91.9 at 20 percent strain with high durability in 100 stretching-releasing cycles. More than 85% of printing accuracy was also found under the DLP 3D printing method. The small deformation of the composites could be detected during the stretching-releasing process during time-dependent testing. Examples of simple human activity and complex spring motion could be successfully detected due to the high responsibility and reproducibility of the finger motion. The composites mentioned in this study could reach the field of strain sensing and can further be applied to other fields such as healthcare and soft robotics.http://www.sciencedirect.com/science/article/pii/S2468217923000151Electromechanical propertiesDLP 3D printingPolypyrrolePhotopolymerizationStrain sensors |
| spellingShingle | Nutthapong Poompiew Prasit Pattananuwat Chuanchom Aumnate Allen Jonathan Román Tim A. Osswald Pranut Potiyaraj 3D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical properties Journal of Science: Advanced Materials and Devices Electromechanical properties DLP 3D printing Polypyrrole Photopolymerization Strain sensors |
| title | 3D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical properties |
| title_full | 3D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical properties |
| title_fullStr | 3D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical properties |
| title_full_unstemmed | 3D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical properties |
| title_short | 3D printable resin/carbon nanotube composites for wearable strain sensors: Enhancing mechanical and electrical properties |
| title_sort | 3d printable resin carbon nanotube composites for wearable strain sensors enhancing mechanical and electrical properties |
| topic | Electromechanical properties DLP 3D printing Polypyrrole Photopolymerization Strain sensors |
| url | http://www.sciencedirect.com/science/article/pii/S2468217923000151 |
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