Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 전형필 | - |
dc.date.accessioned | 2022-05-23T06:49:48Z | - |
dc.date.available | 2022-05-23T06:49:48Z | - |
dc.date.issued | 2022-02 | - |
dc.identifier.citation | SENSORS AND ACTUATORS B-CHEMICAL, v. 359, Page. 1-9 | en_US |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0925400522002015 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/171051 | - |
dc.description.abstract | Natural bentonite (BNT) nanoclay and a polyimide (PI) film were used to fabricate durable bilayer-type actuators driven by airborne moisture. The BNT/PI actuators, optimized for the layer thickness and dimensions, displayed a linear response over the relative humidity (RH) range of 4 – 92% with the curvature sensitivity of 0.35 cm−1%RH−1. It also showed good selectivity to moisture against common organic solvent vapors and excellent reproducibility for up to 200 consecutive operations. Systematic investigations on the materials properties for the individual layers revealed that the bending occurred upon the adsorption of water vapor because the BNT layer underwent greater volume expansion and loss of stiffness than the PI layer. These BNT/PI actuators were successfully applied to create three different prototypes of user-friendly, stand-alone hygrometers: a clock-like hygrometer, an emoticon-display hygrometer, and a humidity-switch-based LED hygrometer. | en_US |
dc.description.sponsorship | This work was partly supported by the GRRC program of Gyeonggi province [GRRC-HY2021-B04, Development of hydrogen sensing tech- nology for safety], and by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Min- istry of Education (2021R1F1A1060636, 2018R1D1A1B07041567). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | Bentonite | en_US |
dc.subject | Moisture-driven actuator | en_US |
dc.subject | Hygrometer | en_US |
dc.subject | Water-responsive materials | en_US |
dc.title | New stand-alone hygrometers based on the moisture-driven bending of a nanoclay and polyimide bilayer | en_US |
dc.type | Article | en_US |
dc.relation.volume | 359 | - |
dc.identifier.doi | 10.1016/j.snb.2022.131559 | - |
dc.relation.page | 1-9 | - |
dc.relation.journal | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.contributor.googleauthor | Nguyen, Duc Cuong | - |
dc.contributor.googleauthor | Bui, Trung Tuyen | - |
dc.contributor.googleauthor | Hua, Si Hiep | - |
dc.contributor.googleauthor | Chun, Hyungphil | - |
dc.contributor.googleauthor | Kim, Yong Shin | - |
dc.relation.code | 2022041296 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING | - |
dc.identifier.pid | hchun | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.