Flexible 3D Printed Acrylic Composites based on Polyaniline/Multiwalled Carbon Nanotubes for Piezoresistive Pressure Sensors
نویسندگان
چکیده
The development of tunable UV-curable polymeric composites for functional applications, taking into consideration environmental issues and additive manufacturing technologies, is a research topic with relevant challenges yet to be solved. Herein, acrylic filled 0–3 wt.%. polyaniline/ multiwalled carbon nanotubes (PANI/MWCNT) are prepared by Digital Light Processing (DLP) in order tailor morphology, thermal, mechanical, electromechanical properties. Viscosity, real-time infrared spectroscopy, cure depth tests allow optimizing resin composition suitable DLP printing. 2 wt.% the maximum filler content reproducibly embedded polymer matrix. advantages PANI/MWCNT (50/50 wt.%) compared single-component include safety issues, enhanced printability, increased electrical conductivity thermal stability, lower percolation threshold (0.83 wt.%). Above this display excellent piezoresistive response, no hysteresis, stability over 400 compression cycles. pressure sensibility (PS) decreases applied from PS ≈ 15 0.8 Mpa−1 pressures 0.02 0.57 MPa, respectively. A proof-of-concept functionality novel materials developed form tactile sensor, demonstrating their potential sensing applications as cost-effective, sustainable, flexible printed electronics.
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ژورنال
عنوان ژورنال: Advanced electronic materials
سال: 2022
ISSN: ['2199-160X']
DOI: https://doi.org/10.1002/aelm.202200590