Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 장승환 | - |
dc.date.accessioned | 2020-01-10T05:13:42Z | - |
dc.date.available | 2020-01-10T05:13:42Z | - |
dc.date.issued | 2017-12 | - |
dc.identifier.citation | ADVANCED MATERIALS TECHNOLOGIES, v. 2, No. 12, Article no. 1700179 | en_US |
dc.identifier.issn | 2365-709X | - |
dc.identifier.uri | https://onlinelibrary.wiley.com/doi/full/10.1002/admt.201700179 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/121664 | - |
dc.description.abstract | An electrically responsive composite is introduced that exhibits muscle-like changes in elastic stiffness (approximate to 1-10 MPa) when stimulated with moderate voltages (5-20 V). The stiffness-tuning element contains an embedded layer of conductive thermoplastic elastomer (cTPE), composed of a propylene- ethylene copolymer and a percolating network of carbon black. Two opposite surfaces of the cTPE layer are coated with a approximate to 20 mu m thin film eutectic gallium-indium (EGaIn) liquid metal alloy. When a voltage is applied to these EGaIn electrodes, electric current passes through the cTPE. This causes internal Joule heating, which induces a phase transition that changes the composite from its stiff state (E = 10.4 MPa) to its compliant state (E = 0.7 MPa). Differential scanning calorimetry is performed to show that this state change is governed by a solid-liquid transition. Voltage-dependent activation times are demonstrated that can be reduced to below 2 s and show the ability of the composite to recover its original shape after large strains. To illustrate its applicability in robotics, the composite is incorporated into an underactuated robotic finger, providing it with two different bending modes. The ability to use the composite as a moldable stiffness-tuning splint is also demonstrated. | en_US |
dc.description.sponsorship | The authors would like to thank Onder Erin, Tess Hellebrekers, and Dr. Gun Zhan Lum for their suggestions on the paper's language, and Dipanjan Saha and the members of the Integrated Soft Materials Lab at Carnegie Mellon University for their helpful discussions. This work was supported by the Samsung Global Research Outreach Program (Award #A019487; Technical Contact: Dr. Youngbo Shim). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | WILEY | en_US |
dc.subject | conductive elastomer | en_US |
dc.subject | EGaIn | en_US |
dc.subject | rigidity tuning | en_US |
dc.subject | soft robotics | en_US |
dc.subject | stiffness tuning | en_US |
dc.title | Liquid Metal‐Conductive Thermoplastic Elastomer Integration for Low‐Voltage Stiffness Tuning | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1002/admt.201700179 | - |
dc.relation.journal | ADVANCED MATERIALS TECHNOLOGIES | - |
dc.contributor.googleauthor | Rich, Steven | - |
dc.contributor.googleauthor | Jang, Sung-Hwan | - |
dc.contributor.googleauthor | Park, Yong-Lae | - |
dc.contributor.googleauthor | Majidi, Carmel | - |
dc.relation.code | 2017042721 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING | - |
dc.identifier.pid | sj2527 | - |
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