TY - JOUR
T1 - 3D Printed Polyimide Nanocomposite Aerogels for Electromagnetic Interference Shielding and Thermal Management
AU - Wu, Tingting
AU - Ganobjak, Michal
AU - Siqueira, Gilberto
AU - Zeng, Zhihui
AU - Li, Mengmeng
AU - Filimonova, Ekaterina
AU - Saghamanesh, Somayeh
AU - Bonnin, Anne
AU - Sivaraman, Deeptanshu
AU - Yip, Joshua
AU - Li, Lei
AU - Wu, Hui
AU - Nyström, Gustav
AU - Malfait, Wim J.
AU - Zhao, Shanyu
N1 - Publisher Copyright:
© 2023 The Authors. Advanced Materials Technologies published by Wiley-VCH GmbH.
PY - 2023/7/24
Y1 - 2023/7/24
N2 - Aerogels were listed among the top ten emerging technologies in chemistry by IUPAC in 2022. Their record-breaking properties sparked the emergence of a thriving insulation market, but solutions are sought to promote additional applications. A 3D assembly process based on direct ink writing of “aerogel-in-aerogel” nanocomposites is presented. The printed polyimide-silica aerogels are non-brittle (E = 6.7 MPa) with a super-insulating thermal conductivity (20.3 mW m−1 K−1) and high thermal stability (T5wt% 447 °C). In addition, they display excellent low-loss dielectric properties and microwave transmission over all relevant communication bands and can be functionalized for electromagnetic interference (EMI) shielding. The high shape-fidelity printing, combined with laser-induced etching of thermally conductive graphene layers, enable precise thermal management for portable electronics or maintain an extreme temperature gradient (−40 to +50°C) across a millimeter-scale partition.
AB - Aerogels were listed among the top ten emerging technologies in chemistry by IUPAC in 2022. Their record-breaking properties sparked the emergence of a thriving insulation market, but solutions are sought to promote additional applications. A 3D assembly process based on direct ink writing of “aerogel-in-aerogel” nanocomposites is presented. The printed polyimide-silica aerogels are non-brittle (E = 6.7 MPa) with a super-insulating thermal conductivity (20.3 mW m−1 K−1) and high thermal stability (T5wt% 447 °C). In addition, they display excellent low-loss dielectric properties and microwave transmission over all relevant communication bands and can be functionalized for electromagnetic interference (EMI) shielding. The high shape-fidelity printing, combined with laser-induced etching of thermally conductive graphene layers, enable precise thermal management for portable electronics or maintain an extreme temperature gradient (−40 to +50°C) across a millimeter-scale partition.
KW - additive manufacturing
KW - aerogels
KW - dielectric properties
KW - polyimide
KW - thermal management
UR - https://www.scopus.com/pages/publications/85152079927
U2 - 10.1002/admt.202202155
DO - 10.1002/admt.202202155
M3 - Article
AN - SCOPUS:85152079927
SN - 2365-709X
VL - 8
JO - Advanced Materials Technologies
JF - Advanced Materials Technologies
IS - 14
M1 - 2202155
ER -