Trunk-branch-inspired carbon fiber scaffolds with boron nitride network for heat dissipation and electromagnetic interference shielding.

Ning Jia, Yuan Ji, Wei Wang, Shichang Wang, Hong Wu, Shaoyun Guo, Jianhui Qiu

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Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Ning JiaThe State Key Laboratory of Advanced Polymer Materials, Sichuan Provincial Engineering Research Center of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, China.

Yuan JiThe State Key Laboratory of Advanced Polymer Materials, Sichuan Provincial Engineering Research Center of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, China.

Wei WangThe State Key Laboratory of Advanced Polymer Materials, Sichuan Provincial Engineering Research Center of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, China.

Shichang WangThe State Key Laboratory of Advanced Polymer Materials, Sichuan Provincial Engineering Research Center of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, China.

Hong WuThe State Key Laboratory of Advanced Polymer Materials, Sichuan Provincial Engineering Research Center of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, China. wh@scu.edu.cn.ORCID http://orcid.org/0000-0001-9972-0873

Shaoyun GuoThe State Key Laboratory of Advanced Polymer Materials, Sichuan Provincial Engineering Research Center of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, China.

Jianhui QiuDepartment of Mechanical Engineering, Faculty of Systems Science and Technology, Akita Prefectural University, Akita, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mesophase pitch-based carbon fibers (CFs) with ultrahigh axial thermal conductivity can significantly enhance through-plane heat transfer in thermal interface materials by vertical alignment, yet raise short-circuiting and electromagnetic interference (EMI) risks. Although incorporating insulating fillers or coating CFs can suppress electron migration, it often compromises thermal performance. Herein, we engineer multi-functionally trunk-branch hierarchical heterostructures to address above limitations. Vertically aligned trunk-like CF scaffolds ensure superior through-plane heat transfer. Branch-like boron nitride (BN) networks optimize impedance matching by enhancing electrical insulation and consequently improve electromagnetic wave (EMW) absorption. Meanwhile, in situ BN networks interconnect CF scaffolds, extending bidirectional thermally conductive and EMW propagation paths. At only 20.17 vol% filler, the composite exhibits a through-plane thermal conductivity of 57.96 W·m

Identifiers

PMID42151148

DOI10.1038/s41467-026-73185-y

PMCPMC13376907

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.