A analysis staff led by Prof. Wang Zhenyang on the Hefei Institutes of Bodily Science of the Chinese language Academy of Sciences has developed a novel 3D-printed graphene/polymer double-layer composite that includes excessive anisotropic thermal conductivity.
The breakthrough gives improved photothermal and electrothermal efficiency for superior ice management functions. The analysis was printed in Carbon and the Chemical Engineering Journal.
Graphene is understood for its excellent thermal and electrical conductivity, significantly its robust anisotropy—excessive in-plane conductivity and far decrease through-plane conductivity.
To capitalize on this property, the researchers employed dual-nozzle fused deposition modeling (FDM) 3D printing to directionally align graphene inside a thermoplastic polyurethane (TPU) matrix. The ensuing double-layer composite, consisting of graphene-enhanced TPU (G-TPU) and neat TPU (N-TPU), achieved an in-plane thermal conductivity of 4.54 W/(m·Okay), with an anisotropic ratio of about 8.
Additional efficiency enhancement was achieved by laser-induced floor engineering. The laser therapy preserved graphene alignment, uncovered the conductive community, and created a carbonized TPU layer, enhancing each thermal and electrical anisotropy.
The anisotropic thermal conductivity ratio elevated to 9.1, and the anisotropic electrical resistance ratio improved by greater than an order of magnitude. Moreover, the laser-treated floor exhibited improved hydrophobicity and light-weight absorption, boosting photothermal conversion effectivity.
This work gives a scalable technique for fabricating high-performance supplies for anti-/de-icing techniques, in keeping with the staff.
Extra data:
Zihao Kang et al, Anisotropic thermal conductivity of 3D printed graphene enhanced thermoplastic polyurethanes construction towards photothermal conversion, Carbon (2025). DOI: 10.1016/j.carbon.2025.120023
Zihao Kang et al, Laser induced 3D printed graphene enhanced thermoplastic polyurethane construction for improved anisotropy and Photograph-/Electro-thermal deicing efficiency, Chemical Engineering Journal (2025). DOI: 10.1016/j.cej.2025.162399
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Chinese language Academy of Sciences
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Excessive-performance 3D-printed graphene composites developed for environment friendly ice management (2025, April 23)
retrieved 23 April 2025
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