TY - JOUR
T1 - Photopolymerized Thin Coating of Polypyrrole/Graphene Nanofiber/Iron Oxide onto Nonpolar Plastic for Flexible Electromagnetic Radiation Shielding, Strain Sensing, and Non-Contact Heating Applications
AU - Ganguly, Sayan
AU - Kanovsky, Naftali
AU - Das, Poushali
AU - Gedanken, Aharon
AU - Margel, Shlomo
N1 - Publisher Copyright:
© 2021 Wiley-VCH GmbH.
PY - 2021/12/8
Y1 - 2021/12/8
N2 - The current work presents the fabrication of micrometer-thick single-side-coated surface-engineered polypropylene (PP) film for versatile flexible electronics applications. Herein, the authors report, for the first time, photopolymerized thin coating of graphene nanofibers (GNFs) and iron oxide nanoparticles (IONPs) onto non-polar plastic via surface chemistry. The fabrication is achieved by adopting three consecutive steps; initially corona treated PP films are treated with silane for thin layer silica coating. Then, the silylated PP films are brushed up by pyrrole/GNFs/IONPs mixture, followed by UV exposure. The coated films show surface conductivity in the range of ≈20 S cm−1 at room temperature. Moreover, ≈15 microns of the coated film is tested against electromagnetic waves in the X-band region (8.2–12.4 GHz) and its shielding behavior (≈24 dB) is confirmed. To demonstrate its wide range of versatility, the coated films are tested against angular strain and oscillatory magnetic fields. The results confirm angle dependent strain sensitivity and induction heating obeying Néel relaxation. To the best of the authors’ knowledge, this is the first synergistic coating archived for mitigating radiation pollution, strain sensing, and non-contact heating.
AB - The current work presents the fabrication of micrometer-thick single-side-coated surface-engineered polypropylene (PP) film for versatile flexible electronics applications. Herein, the authors report, for the first time, photopolymerized thin coating of graphene nanofibers (GNFs) and iron oxide nanoparticles (IONPs) onto non-polar plastic via surface chemistry. The fabrication is achieved by adopting three consecutive steps; initially corona treated PP films are treated with silane for thin layer silica coating. Then, the silylated PP films are brushed up by pyrrole/GNFs/IONPs mixture, followed by UV exposure. The coated films show surface conductivity in the range of ≈20 S cm−1 at room temperature. Moreover, ≈15 microns of the coated film is tested against electromagnetic waves in the X-band region (8.2–12.4 GHz) and its shielding behavior (≈24 dB) is confirmed. To demonstrate its wide range of versatility, the coated films are tested against angular strain and oscillatory magnetic fields. The results confirm angle dependent strain sensitivity and induction heating obeying Néel relaxation. To the best of the authors’ knowledge, this is the first synergistic coating archived for mitigating radiation pollution, strain sensing, and non-contact heating.
KW - corona-treated polypropylene films, electromagnetic radiation shielding
KW - magneto-electro coating
KW - oscillatory magnetic field
KW - photopolymerization
KW - strain sensing
KW - surface conductivity
UR - http://www.scopus.com/inward/record.url?scp=85118597441&partnerID=8YFLogxK
U2 - 10.1002/admi.202101255
DO - 10.1002/admi.202101255
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AN - SCOPUS:85118597441
SN - 2196-7350
VL - 8
JO - Advanced Materials Interfaces
JF - Advanced Materials Interfaces
IS - 23
M1 - 2101255
ER -