DataVXAdvanced Materials TechnologiesPaper
journal article·2023-07Open access

3D Printed Polyimide Nanocomposite Aerogels for Electromagnetic Interference Shielding and Thermal Management

Tingting Wu, Michal Ganobjak, Gilberto Siqueira, Zhihui Zeng, Mengmeng Li, Ekaterina Filimonova, Somayeh Saghamanesh, Anne Bonnin, Deeptanshu Sivaraman, Joshua Yip, Lei Li, Hui Wu, Gustav Nyström, Wim J. Malfait, Shanyu Zhao

Advanced Materials Technologies· Volume 8· Issue 14
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Source abstract

Abstract

Abstract 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.
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Research context

NanomaterialsMaterials processing

OpenAlex topics: Aerogels and thermal insulation · Electromagnetic wave absorption materials · Dielectric materials and actuators

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory for Building Energy Materials and Components Swiss Federal Laboratories for Materials Science and Technology Empa Dübendorf 8600 Switzerland

Cellulose & Wood Materials Laboratory Swiss Federal Laboratories for Materials Science and Technology Empa Dübendorf 8600 Switzerland

School of Materials Science and Engineering Shandong University Jinan 25006 P. R. China

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China

Center for X‐ray Analytics Swiss Federal Laboratories for Materials Science and Technology Empa Dübendorf 8600 Switzerland

Swiss Light Source Paul Scherrer Institute Villigen 5232 Switzerland

State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 P. R. China

Department of Health Science and Technology ETH Zürich Zürich 8092 Switzerland

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