journal article Dec 16, 2021

Additive Manufacturing of Ti3C2‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

View at Publisher Save 10.1002/adma.202106253
Abstract
AbstractThe ongoing miniaturization of devices and development of wireless and implantable technologies demand electromagnetic interference (EMI)‐shielding materials with customizability. Additive manufacturing of conductive polymer hydrogels with favorable conductivity and biocompatibility can offer new opportunities for EMI‐shielding applications. However, simultaneously achieving high conductivity, design freedom, and shape fidelity in 3D printing of conductive polymer hydrogels is still very challenging. Here, an aqueous Ti3C2‐MXene‐functionalized poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate ink is developed for extrusion printing to create 3D objects with arbitrary geometries, and a freeze–thawing protocol is proposed to transform the printed objects directly into highly conductive and robust hydrogels with high shape fidelity on both the macro‐ and microscale. The as‐obtained hydrogel exhibits a high conductivity of 1525.8 S m–1 at water content up to 96.6 wt% and also satisfactory mechanical properties with flexibility, stretchability, and fatigue resistance. Furthermore, the use of the printed hydrogel for customizable EMI‐shielding applications is demonstrated. The proposed easy‐to‐manufacture approach, along with the highlighted superior properties, expands the potential of conductive polymer hydrogels in future customizable applications and represents a real breakthrough from the current state of the art.
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References
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Cited By
235
MXenes: Properties, Applications, and Potential in 3D Printing

Donato Luca Palladino, Francesco Baino · 2025

Ceramics
Journal of Materials Chemistry A
Metrics
235
Citations
41
References
Details
Published
Dec 16, 2021
Vol/Issue
34(5)
License
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Authors
Funding
European Research Council Award: GA 681544
Science Foundation Ireland Award: 12/RC/2278_P2
Cite This Article
Lorcan McKeon, James Garcia, Sergio Pinilla, et al. (2021). Additive Manufacturing of Ti3C2‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding. Advanced Materials, 34(5). https://doi.org/10.1002/adma.202106253
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