RT journal article
T1 Towards Sustainable Temperature Sensor Production through CO2-Derived Polycarbonate-Based Composites
A1 Martín-Ayerdi, A.
A1 Rubio Peña, Luis
A1 Peřinka, N.
A1 Oyarzabal, I.
A1 Vilas, J. L.
A1 Costa, P.
A1 Lanceros-Méndez, S.
A2 Ingeniería en AutomáticaElectrónica, Arquitectura y Redes de Computadores
K1 polycarbonate
K1 flexible electronics
K1 carbon nanotubes
K1 sensor
K1 thermoresistive
AB The steep increase in carbon dioxide (CO2) emissions has created great concern due to itsrole in the greenhouse effect and global warming. One approach to mitigate CO2 levels involves itsapplication in specific technologies. In this context, CO2 can be used for a more sustainable synthesisof polycarbonates (CO2-PCs). In this research, CO2-PC films and composites with multiwalledcarbon nanotubes (MWCNTs, ranging from 0.2 to 7.0 wt.%) have been prepared to achieve moresustainable multifunctional sensing devices. The inclusion of the carbonaceous fillers allows for theelectrical conductivity to be enhanced, reaching the percolation threshold (Pc) at 0.1 wt.% MWCNTsand a maximum electrical conductivity of 0.107 S·m−1 for the composite containing 1.5 wt.% MWCNTs.The composite containing 3.0 wt.% MWCNTs was also studied, showing a stable and linearresponse under temperature variations from 40 to 100 ◦C and from 30 to 45 ◦C, with a sensitivity of1.3 × 10−4 ◦C−1. Thus, this investigation demonstrates the possibility of employing CO2-derivedPC/MWCNT composites as thermoresistive sensing materials, allowing for the transition towardssustainable polymer-based electronics.
PB MDPI
SN 2073-4360
YR 2024
FD 2024-07-08
LK http://hdl.handle.net/10498/35532
UL http://hdl.handle.net/10498/35532
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026