Deformable Ionic Polymer Artificial Mechanotransducer with an Interpenetrating Nanofibrillar Network
- Authors
- Kim, So Young; Kim, Yongchan; Cho, Changhyeon; Choi, Hanbin; Park, Han Wool; Lee, Dayoon; Heo, Eunah; Park, Sangsik; Lee, Hojin; Kim, Do Hwan
- Issue Date
- Aug-2019
- Publisher
- AMER CHEMICAL SOC
- Keywords
- ionic polymer artificial mechanotransducer; ionic interpenetrating nanofibrillar network; blocking force; wide bandwidth; soft actuator; soft haptic interface
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.11, no.32, pp.29350 - 29359
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 11
- Number
- 32
- Start Page
- 29350
- End Page
- 29359
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/32843
- DOI
- 10.1021/acsami.9b10499
- ISSN
- 1944-8244
- Abstract
- We demonstrate an ionic polymer artificial mechanotransducer (i-PAM) capable of simultaneously yielding an efficient wide bandwidth and a blocking force to maximize human tactile recognition in soft tactile feedback. The unique methodology in the i-PAM relies on an ionic interpenetrating nanofibrillar network that is formed at the interface of (i) an ionic thermoplastic polyurethane nanofibrillar matrix with an ionic liquid of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM](+)[TESI](-)) and (ii) ionic poly(3,4-ethylenedioxythiophene):poly(styrenesulfonic acid) (PEDOT:PSS) conducting polymer electrodes with dimethyl sulfoxide and [EMIM]+ITESI](-) as additives. The i-PAM-based actuator with the ionic PEDOT:PSS exhibits a stable operation up to 200 Hz at low voltage as well as a blocking force of 0.4 mN, which can be potentially adapted to soft tactile feedback. Furthermore, on the basis of this fast i-PAM, we realized alphabet tactile rendering by using a 3 x 3 i-PAM array stimulated by a dc input of 2 V. We believe that our proposed approach can provide a rational guide to the human-machine soft haptic interface.
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