Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session PP05: V: Optical, Electronic, Ionic, and Piezoelectric Properties of Polymers and Composites
9:00 AM–11:00 AM,
Tuesday, March 21, 2023
Room: Virtual Room 5
Sponsoring
Unit:
DPOLY
Chair: Bryan Boudouris, Purdue University
Abstract: PP05.00002 : PAAMPSA/PANI/PA Composite with AgnW Fillers Demonstrates Unprecedented Mechanical Performance*
9:12 AM–9:24 AM
Presenter:
Colton L Duprey
(University of Maine)
Author:
Colton L Duprey
(University of Maine)
Collaboration:
Mean Lab
sufficiently high balance of conductivity, stretchability, and robustness. Intrinsically conductive
polymers offer a critical step toward improving wearable sensor materials due to their tunable
conductivity, soft/compliant nature, and ability to complex with other synergistic molecules (i.e.,
polyacids, small molecule dopants). The addition of nanofillers offers the potential to improve
the conductivity of polymers for soft robotics and wearable applications. While nanofillers
typically increase conductivity at the expense of mechanical properties, here we show an
increase in both conductivity and mechanical properties, which the interface between the
polymer matrix and the AgNW is hypothesized to be integral for the formation of an active
conductive network. These form a polymer nanocomposite with high electronic sensitivity,
unprecedented mechanical properties (a maximum strain of 4693% at ambient humidity; ~52
RH%), and repeatable, autonomous self-healing efficiencies of greater than 98%. The AgNW TP
complex has an engineering strain higher than all hydrogel and other polymeric sensor materials.
*The authors would like to thank a National Science Foundation (MPS/DMR/Electronic and Photonic Materials) CAREER Award (award number: 1942492) for support
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