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Li, Mengmeng
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Publications (6/6 displayed)
- 20233D Printed Polyimide Nanocomposite Aerogels for Electromagnetic Interference Shielding and Thermal Managementcitations
- 20233D printed polyimide nanocomposite aerogels for electromagnetic interference shielding and thermal managementcitations
- 2021Polymorphism of a semi-crystalline diketopyrrolopyrrole-terthiophene polymercitations
- 2019Monitoring of Thermal Aging of Aluminum Alloy via Nonlinear Propagation of Acoustic Pulses Generated and Detected by Laserscitations
- 2019The influence of siloxane side-chains on the photovoltaic performance of a conjugated polymercitations
- 2019Impact of polymorphism on the optoelectronic properties of a low-bandgap semiconducting polymercitations
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article
3D Printed Polyimide Nanocomposite Aerogels for Electromagnetic Interference Shielding and Thermal Management
Abstract
<jats:title>Abstract</jats:title><jats:p>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 (<jats:italic>E</jats:italic> = 6.7 MPa) with a super‐insulating thermal conductivity (20.3 mW m<jats:sup>−1</jats:sup> K<jats:sup>−1</jats:sup>) and high thermal stability (<jats:italic>T</jats:italic><jats:sub>5wt%</jats:sub> 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.</jats:p>