An Engineered Heterostructured Trinity Enables Fire-Safe, Thermally Conductive Polymer Nanocomposite Films with Low Dielectric Loss
Article
Article Title | An Engineered Heterostructured Trinity Enables Fire-Safe, Thermally Conductive Polymer Nanocomposite Films with Low Dielectric Loss |
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ERA Journal ID | 213738 |
Article Category | Article |
Authors | Chen, Qiang, Feng, Jiabing, Xue, Yijiao, Huo, Siqi, Dinh, Toan, Xu, Hang, Shi, Yongqian, Gao, Jiefeng, Tang, Long-Cheng, Huang, Guobo, Lei, Weiwei and Song, Pingan |
Journal Title | Nano-Micro Letters |
Journal Citation | 17 |
Article Number | 168 |
Number of Pages | 19 |
Year | 2025 |
Publisher | SpringerOpen |
Place of Publication | Germany |
ISSN | 2150-5551 |
2311-6706 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s40820-025-01681-9 |
Web Address (URL) | https://link.springer.com/article/10.1007/s40820-025-01681-9 |
Abstract | To adapt to the trend of increasing miniaturization and high integration of microelectronic equipments, there is a high demand for multifunctional thermally conductive (TC) polymeric films combining excellent flame retardancy and low dielectric constant (ε). To date, there have been few successes that achieve such a performance portfolio in polymer films due to their different and even mutually exclusive governing mechanisms. Herein, we propose a trinity strategy for creating a rationally engineered heterostructure nanoadditive (FG@CuP@ZTC) by in situ self-assembly immobilization of copper-phenyl phosphonate (CuP) and zinc-3, 5-diamino-1,2,4-triazole complex (ZTC) onto the fluorinated graphene (FG) surface. Benefiting from the synergistic effects of FG, CuP, and ZTC and the bionic lay-by-lay (LBL) strategy, the as-fabricated waterborne polyurethane (WPU) nanocomposite film with 30 wt% FG@CuP@ZTC exhibits a 55.6% improvement in limiting oxygen index (LOI), 66.0% and 40.5% reductions in peak heat release rate and total heat release, respectively, and 93.3% increase in tensile strength relative to pure WPU film due to the synergistic effects between FG, CuP, and ZTC. Moreover, the WPU nanocomposite film presents a high thermal conductivity (λ) of 12.7 W m−1 K−1 and a low ε of 2.92 at 106 Hz. This work provides a commercially viable rational design strategy to develop high-performance multifunctional polymer nanocomposite films, which hold great potential as advanced polymeric thermal dissipators for high-power-density microelectronics. |
Keywords | Bionic strategy; Fluorinated graphene; Flame retardancy; Thermal conductivity; Dielectric constant |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Byline Affiliations | Hohai University, China |
Jiaxing University, China | |
Institute of Chemical Industry of Forest Products, China | |
School of Engineering | |
Centre for Future Materials | |
Fuzhou University, China | |
Yangzhou University, China | |
Centre for Future Materials (Research) | |
Taizhou University, China | |
Royal Melbourne Institute of Technology (RMIT) | |
School of Agriculture and Environmental Science |
https://research.usq.edu.au/item/zwvx6/an-engineered-heterostructured-trinity-enables-fire-safe-thermally-conductive-polymer-nanocomposite-films-with-low-dielectric-loss
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