RT Journal Article
T1 Photocurable printed piezocapacitive pressure sensor based on an acrylic resin modified with polyaniline and lignin
A1 Arias-Ferreiro, Goretti
A1 Ares-Pernas, Ana
A1 Lasagabaster Latorre, Aurora
A1 Dopico-García, M. Sonia
A1 Ligero, Pablo
A1 Pereira, N.
A1 Costa, P.
A1 Lanceros-Méndez, S.
A1 Abad Martínez, María José
AB The design of suitable materials for the manufacture of pressure sensors withhigh sensitivity and flexibility in wearable electronics is still a challenge. In thisstudy, a flexible and portable pressure sensor is developed based on a pho-topolymeric formulation of polyaniline (PANI)/Lignin/acrylate. The amountof photoinitiator and the presence of lignin within the filler are investigated toobtain the best printability and capacitive response. Low PANI contents drasti-cally increase the dielectric constant and 4 wt% photoinitiator improves thesignal and sensitivity. A sensitivity of 0.012 kPa–1 is achieved in a linear range(0–10 kPa) with only 3.5 wt% PANI. Lignin improves both the dispersion of thefiller within the matrix and the printability of the resin, due to lower absorptivityat the UV wavelength of the 3D printer. Thus, the PANI-Lignin filler is selectedfor the fabrication of a piezocapacitive prototype transducer. The pressuretransducer demonstrate its practical application by responding to a humanfootfall and transmitting its corresponding electrical signal. This study showsthe enhanced properties of lignin modified PANI acrylate composites. Basedon lignin, an abundant natural waste, a sustainable photocurable cost-effectivepolymer is proposed for the fabrication of printable, wearable electronics.
PB Wiley-VCH GmbH
SN 2365-709X
YR 2022
FD 2022
LK https://hdl.handle.net/20.500.14352/116341
UL https://hdl.handle.net/20.500.14352/116341
LA eng
NO Arias‐Ferreiro, Goretti, et al. «Photocurable Printed Piezocapacitive Pressure Sensor Based on an Acrylic Resin Modified with Polyaniline and Lignin». Advanced Materials Technologies, vol. 7, n.o 8, agosto de 2022, p. 2101503. DOI.org (Crossref), https://doi.org/10.1002/admt.202101503.
NO Xunta de Galicia
NO Ministerio de Ciencia e Innovación (España)
NO Eusko Jaurlaritza
NO Universidade da Coruña
NO FCT: Foundation for Science and Technology (Portugal)
DS Docta Complutense
RD 12 abr 2025