Fabrication and Piezoresistive/Piezoelectric Sensing Characteristics of Carbon Nanotube/PVA/Nano-ZnO Flexible Composite
Flexible sensors with a high sensitivity and wide-frequency response are essential for structural health monitoring (SHM) while they are attached. Here, carbon nanotube (CNT) films doped with various PVA fractions (CNT/PVA) and ZnO nanowires (nano-ZnO) on zinc sheets were first fabricated by functio...
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| Veröffentlicht in: | Scientific reports 2020-06, Vol.10 (1), p.8895-8895, Article 8895 |
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| creator | Chen, Shuaichao Luo, Jianlin Wang, Xiaoli Li, Qiuyi Zhou, Liucong Liu, Chao Feng, Chao |
| description | Flexible sensors with a high sensitivity and wide-frequency response are essential for structural health monitoring (SHM) while they are attached. Here, carbon nanotube (CNT) films doped with various PVA fractions (CNT/PVA) and ZnO nanowires (nano-ZnO) on zinc sheets were first fabricated by functionalized self-assembly and hydrothermal synthesis processes. A CNT/PVA/nano-ZnO flexible composite (CNT/PVA/ZnO) sandwiched with a zinc wafer was then prepared by the spin-coating method. The piezoresistive and/or piezoelectric capabilities of the CNT/PVA/ZnO composite were comprehensively investigated under cyclic bending and impact loading after it was firmly adhered to a substrate (polypropylene sheet or mortar plate). The results show that the piezoresistive sensitivity and linear stability of the CNT/PVA films doped with 20%, 50%, and 100% PVA during bending are 5.47%/mm, 11.082%/mm, and 11.95%/mm and 2.3%, 3.42%, and 4.78%, respectively. The piezoelectric sensitivity, linear stability, and response accuracy of the CNT/PVA/ZnO composite under impulse loading are 4.87 mV/lbf, 3.42%, and 1.496 ms, respectively. These merits support the use of CNT/PVA/ZnO as a piezoresistive and/or piezoelectric compound sensor to monitor the static/dynamic loads on concrete structures while it is attached. |
| doi_str_mv | 10.1038/s41598-020-65771-x |
| format | Article |
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Here, carbon nanotube (CNT) films doped with various PVA fractions (CNT/PVA) and ZnO nanowires (nano-ZnO) on zinc sheets were first fabricated by functionalized self-assembly and hydrothermal synthesis processes. A CNT/PVA/nano-ZnO flexible composite (CNT/PVA/ZnO) sandwiched with a zinc wafer was then prepared by the spin-coating method. The piezoresistive and/or piezoelectric capabilities of the CNT/PVA/ZnO composite were comprehensively investigated under cyclic bending and impact loading after it was firmly adhered to a substrate (polypropylene sheet or mortar plate). The results show that the piezoresistive sensitivity and linear stability of the CNT/PVA films doped with 20%, 50%, and 100% PVA during bending are 5.47%/mm, 11.082%/mm, and 11.95%/mm and 2.3%, 3.42%, and 4.78%, respectively. The piezoelectric sensitivity, linear stability, and response accuracy of the CNT/PVA/ZnO composite under impulse loading are 4.87 mV/lbf, 3.42%, and 1.496 ms, respectively. These merits support the use of CNT/PVA/ZnO as a piezoresistive and/or piezoelectric compound sensor to monitor the static/dynamic loads on concrete structures while it is attached.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-020-65771-x</identifier><identifier>PMID: 32483263</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/301/1005/1009 ; 639/301/357/73 ; Carbon ; Civil engineering ; Concrete ; Fabrication ; Frequency dependence ; Humanities and Social Sciences ; multidisciplinary ; Nanotechnology ; Organic chemicals ; Polypropylene ; Science ; Science (multidisciplinary) ; Self-assembly ; Sensors ; Signal processing ; Strain gauges</subject><ispartof>Scientific reports, 2020-06, Vol.10 (1), p.8895-8895, Article 8895</ispartof><rights>The Author(s) 2020</rights><rights>The Author(s) 2020. 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Here, carbon nanotube (CNT) films doped with various PVA fractions (CNT/PVA) and ZnO nanowires (nano-ZnO) on zinc sheets were first fabricated by functionalized self-assembly and hydrothermal synthesis processes. A CNT/PVA/nano-ZnO flexible composite (CNT/PVA/ZnO) sandwiched with a zinc wafer was then prepared by the spin-coating method. The piezoresistive and/or piezoelectric capabilities of the CNT/PVA/ZnO composite were comprehensively investigated under cyclic bending and impact loading after it was firmly adhered to a substrate (polypropylene sheet or mortar plate). The results show that the piezoresistive sensitivity and linear stability of the CNT/PVA films doped with 20%, 50%, and 100% PVA during bending are 5.47%/mm, 11.082%/mm, and 11.95%/mm and 2.3%, 3.42%, and 4.78%, respectively. The piezoelectric sensitivity, linear stability, and response accuracy of the CNT/PVA/ZnO composite under impulse loading are 4.87 mV/lbf, 3.42%, and 1.496 ms, respectively. These merits support the use of CNT/PVA/ZnO as a piezoresistive and/or piezoelectric compound sensor to monitor the static/dynamic loads on concrete structures while it is attached.</description><subject>639/301/1005/1009</subject><subject>639/301/357/73</subject><subject>Carbon</subject><subject>Civil engineering</subject><subject>Concrete</subject><subject>Fabrication</subject><subject>Frequency dependence</subject><subject>Humanities and Social Sciences</subject><subject>multidisciplinary</subject><subject>Nanotechnology</subject><subject>Organic chemicals</subject><subject>Polypropylene</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Self-assembly</subject><subject>Sensors</subject><subject>Signal processing</subject><subject>Strain gauges</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kU9v1DAQxS0EolXpF-CAInHhEtaxnTi5IFURS5EqisSfAxdr7Ey2rrL2Yjtl6afHu1tK4YAv9mh-88ZPj5DnFX1dUd4uoqjqri0po2VTS1mV20fkmFFRl4wz9vjB-4icxnhN86lZJ6ruKTniTLScNfyY_FiCDtZAst4V4Ibio8VbHzDamOwNLvYlTmhSpopP6KJ1q6K_ggAmYdhRJhZ-LHoIOkt8AOfTrPPg17PFrii_uctiOeHW6gmL3q83PtqEz8iTEaaIp3f3CfmyfPu5Py8vLt-9788uSiOkSKUGqSVy0WoYuBSc8lEKWnfQdNlLo7Wmchwq0Y21pu3ApAHRcN6MQHf-BD8hbw66m1mvcTDoUoBJbYJdQ_ipPFj1d8fZK7XyN0qyRuS9WeDVnUDw32eMSa1tNDhN4NDPUTFB21YwVncZffkPeu3n4LK9PVVXLGOZYgfKBB9jwPH-MxVVu2jVIVqVo1X7aNU2D714aON-5HeQGeAHIOaWW2H4s_s_sr8A6GCw-A</recordid><startdate>20200601</startdate><enddate>20200601</enddate><creator>Chen, Shuaichao</creator><creator>Luo, Jianlin</creator><creator>Wang, Xiaoli</creator><creator>Li, Qiuyi</creator><creator>Zhou, Liucong</creator><creator>Liu, Chao</creator><creator>Feng, Chao</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-2916-0804</orcidid></search><sort><creationdate>20200601</creationdate><title>Fabrication and Piezoresistive/Piezoelectric Sensing Characteristics of Carbon Nanotube/PVA/Nano-ZnO Flexible Composite</title><author>Chen, Shuaichao ; 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Here, carbon nanotube (CNT) films doped with various PVA fractions (CNT/PVA) and ZnO nanowires (nano-ZnO) on zinc sheets were first fabricated by functionalized self-assembly and hydrothermal synthesis processes. A CNT/PVA/nano-ZnO flexible composite (CNT/PVA/ZnO) sandwiched with a zinc wafer was then prepared by the spin-coating method. The piezoresistive and/or piezoelectric capabilities of the CNT/PVA/ZnO composite were comprehensively investigated under cyclic bending and impact loading after it was firmly adhered to a substrate (polypropylene sheet or mortar plate). The results show that the piezoresistive sensitivity and linear stability of the CNT/PVA films doped with 20%, 50%, and 100% PVA during bending are 5.47%/mm, 11.082%/mm, and 11.95%/mm and 2.3%, 3.42%, and 4.78%, respectively. The piezoelectric sensitivity, linear stability, and response accuracy of the CNT/PVA/ZnO composite under impulse loading are 4.87 mV/lbf, 3.42%, and 1.496 ms, respectively. These merits support the use of CNT/PVA/ZnO as a piezoresistive and/or piezoelectric compound sensor to monitor the static/dynamic loads on concrete structures while it is attached.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>32483263</pmid><doi>10.1038/s41598-020-65771-x</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-2916-0804</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | 639/301/1005/1009 639/301/357/73 Carbon Civil engineering Concrete Fabrication Frequency dependence Humanities and Social Sciences multidisciplinary Nanotechnology Organic chemicals Polypropylene Science Science (multidisciplinary) Self-assembly Sensors Signal processing Strain gauges |
| title | Fabrication and Piezoresistive/Piezoelectric Sensing Characteristics of Carbon Nanotube/PVA/Nano-ZnO Flexible Composite |
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