Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Transparent, pressure-sensitive, and healable e-skin from a UV-cured polymer comprising dynamic urea bonds

Authors
Jun, SungwooKim, Sun OkLee, Hee-JinHan, Chul JongLee, Chan-JaeYu, Yeon-TaeLee, Cheul-RoJu, Byeong-KwonKim, YoungminKim, Jong-Woong
Issue Date
21-2월-2019
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY A, v.7, no.7, pp.3101 - 3111
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF MATERIALS CHEMISTRY A
Volume
7
Number
7
Start Page
3101
End Page
3111
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/67593
DOI
10.1039/c8ta10765c
ISSN
2050-7488
Abstract
Most intrinsically healable polymers feature a soft nature and high flowability that arise from the reversible formation of bonds (e.g., cross-linkages). Unfortunately, a trade-off relationship between mechanical strength and healing capability is observed for the majority of these polymers, which necessitates the search for better alternatives. Herein, we synthesized a urethane acrylate-based intrinsically healable material with enhanced mechanical properties, demonstrating that this enhancement originates from the presence of UV curing-produced dynamic urea bonds acting as reversible cross-linkages. The synthesized polymer was hybridized with silver nanowires (AgNWs) to afford a transparent pressure-sensitive e-skin capable of irradiation-induced healing, i.e., the heating of AgNWs by a series of intense pulsed light (IPL) irradiations allowed one to instantly and rapidly repair the cutting marks or scratches artificially formed on e-skin sensors. The healing ability was originated from the enhanced flowability and thermal expansion of the polymer during IPL irradiation. Consecutive cutting-healing cycling showed that the cutting marks formed at the same locations could be effectively repaired for up to five times. The fringing effect-associated capacitance of a AgNW tandem compound pattern significantly increased with increasing pressure applied to the sensor surface, and the electric function of damaged sensors was successfully restored by irradiation-induced healing.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > School of Electrical Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Ju, Byeong kwon photo

Ju, Byeong kwon
공과대학 (전기전자공학부)
Read more

Altmetrics

Total Views & Downloads

BROWSE