Stretchable conductive adhesives with superior electrical stability as printable interconnects in washable textile electronics

Title
Stretchable conductive adhesives with superior electrical stability as printable interconnects in washable textile electronics
Authors
이상수김희숙임정아고영표오진우박경태김수진허완수성봉준
Issue Date
2019-10
Publisher
ACS Applied Materials & Interfaces
Citation
VOL 11, NO 40-37050
Abstract
As practical interest in stretchable electronics increases for future applications in wearables, healthcare, and robotics, the demand for electrical interconnects with high electrical conductivity, durability, printability, and adhesion is growing. Despite the high electrical conductivity and stretchability of most previous interconnects, they lack stable conductivity against strain and adhesion to stretchable substrates, leading to a limitation for their practical applications. Herein, we propose a stretchable conductive adhesive consisting of silver particles with carbon nanotube as an auxiliary filler in silicone adhesives. The conductive adhesive exhibits a high initial conductivity of 6450 S cm– 1. They show little change in conductivity over 3000 stretching cycles at 50% strain, currently the highest stability reported for elastic conductors. Based on strong adhesion to stretchable substrates, the gel-free, dry adhesives printed on an elastic bandage for electrocardiography monitoring exhibit an extremely stable performance upon movement of the subject, even after several cycles of detachment– reattachment and machine washing.
URI
http://pubs.kist.re.kr/handle/201004/70057
ISSN
1944-8244
Appears in Collections:
KIST Publication > Article
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