Biphasic GaIn Alloy Constructed Stable Percolation Network in Polymer Composites over Ultrabroad Temperature Region - PubMed Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Apr;36(14):e2310849.
doi: 10.1002/adma.202310849. Epub 2024 Jan 8.

Biphasic GaIn Alloy Constructed Stable Percolation Network in Polymer Composites over Ultrabroad Temperature Region

Xinfeng Zhou  1 , Yue Liu  1 , Zijie Gao  1 , Peng Min  1 , Ji Liu  2 , Zhong-Zhen Yu  3 , Valeria Nicolosi  2 , Hao-Bin Zhang  1   3
Affiliations

Biphasic GaIn Alloy Constructed Stable Percolation Network in Polymer Composites over Ultrabroad Temperature Region

Xinfeng Zhou et al. Adv Mater. 2024 Apr.

Abstract

Flexible and adaptable polymer composites with high-performance reliability over wide temperature range are imperative for various applications. However, the distinct filler-matrix thermomechanical behaviors often cause severe structure damage and performance degradation upon large thermal shock. To address this issue, a general strategy is proposed to construct leakage-free, self-adaptive, stable percolation networks in polymer composites over wide temperature (77-473 K) with biphasic Ga35In65 alloy. The in situ micro-CT technology, for the first time, reveals the conformable phase transitions of Ga35In65 alloys in the polymer matrix that help repair the disruptive conductive networks over large temperature variations. The cryo-expanded Ga compensates the disruptive carbon networks at low temperatures, and flowable Ga and melted In at high temperatures conformably fill and repair the deboned interfaces and yielded crevices. As a proof-of-concept, this temperature-resistant composite demonstrates superb electrical conductivity and electromagnetic interference shielding properties and stability even after a large temperature shock (ΔT = 396 K). Furthermore, the superiority of the construction of temperature self-adaptive networks within the composite enables them for additive manufacturing of application-oriented components. This work offers helpful inspiration for developing high-performance polymer composites for extreme-temperature applications.

Keywords: electromagnetic interference shielding; leakage‐free; liquid metal; polymer composites; wide‐temperature region.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

References

    1. S. Won, H. E. Lee, Y. S. Cho, K. Yang, J. E. Park, S. J. Yang, J. J. Wie, Nat. Commun. 2022, 13, 6750.
    1. a) A. Fassler, C. Majidi, Adv. Mater. 2015, 27, 1928;
    1. b) Z. Ma, Q. Huang, Q. Xu, Q. Zhuang, X. Zhao, Y. Yang, H. Qiu, Z. Yang, C. Wang, Y. Chai, Z. Zheng, Nat. Mater. 2021, 20, 859;
    1. c) N. Song, F. Zhang, D. Cao, P. Wang, P. Ding, Adv. Compos. Hybrid Mater. 2022, 5, 2873.
    1. a) L. Teng, S. Ye, S. Handschuh‐Wang, X. Zhou, T. Gan, X. Zhou, Adv. Funct. Mater. 2019, 29, 1808739;

LinkOut - more resources