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Title: Nanostructured polymer films with metal-like thermal conductivity

Abstract

Due to their unique properties, polymers – typically thermal insulators – can open up opportunities for advanced thermal management when they are transformed into thermal conductors. Recent studies have shown polymers can achieve high thermal conductivity, but the transport mechanisms have yet to be elucidated. Here we report polyethylene films with a high thermal conductivity of 62 Wm –1 K –1, over two orders-of-magnitude greater than that of typical polymers (~0.1 Wm –1 K –1) and exceeding that of many metals and ceramics. Structural studies and thermal modeling reveal that the film consists of nanofibers with crystalline and amorphous regions, and the amorphous region has a remarkably high thermal conductivity, over ~16 Wm –1 K –1. This work lays the foundation for rational design and synthesis of thermally conductive polymers for thermal management, particularly when flexible, lightweight, chemically inert, and electrically insulating thermal conductors are required.

Authors:
ORCiD logo [1];  [2];  [3];  [4]; ORCiD logo [5];  [5];  [6];  [5];  [7];  [8];  [9]; ORCiD logo [5]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Massachusetts, Amherst, MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Modern Electron, Bothell, WA (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Peking Univ., Beijing (China)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  6. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Advanced Cooling Technologies, Inc., Lancaster, PA (United States)
  7. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Houston, Houston, TX (United States)
  8. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Chandler, AZ (United States)
  9. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Huazhong Univ. of Science and Technology, Hubei (China)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Advanced Manufacturing Office (EE-5A); US Department of the Navy, Office of Naval Research (ONR); USDOE Office of Science (SC)
OSTI Identifier:
1545628
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English

Citation Formats

Xu, Yanfei, Kraemer, Daniel, Song, Bai, Jiang, Zhang, Zhou, Jiawei, Loomis, James, Wang, Jianjian, Li, Mingda, Ghasemi, Hadi, Huang, Xiaopeng, Li, Xiaobo, and Chen, Gang. Nanostructured polymer films with metal-like thermal conductivity. United States: N. p., 2019. Web. doi:10.1038/s41467-019-09697-7.
Xu, Yanfei, Kraemer, Daniel, Song, Bai, Jiang, Zhang, Zhou, Jiawei, Loomis, James, Wang, Jianjian, Li, Mingda, Ghasemi, Hadi, Huang, Xiaopeng, Li, Xiaobo, & Chen, Gang. Nanostructured polymer films with metal-like thermal conductivity. United States. doi:10.1038/s41467-019-09697-7.
Xu, Yanfei, Kraemer, Daniel, Song, Bai, Jiang, Zhang, Zhou, Jiawei, Loomis, James, Wang, Jianjian, Li, Mingda, Ghasemi, Hadi, Huang, Xiaopeng, Li, Xiaobo, and Chen, Gang. Tue . "Nanostructured polymer films with metal-like thermal conductivity". United States. doi:10.1038/s41467-019-09697-7. https://www.osti.gov/servlets/purl/1545628.
@article{osti_1545628,
title = {Nanostructured polymer films with metal-like thermal conductivity},
author = {Xu, Yanfei and Kraemer, Daniel and Song, Bai and Jiang, Zhang and Zhou, Jiawei and Loomis, James and Wang, Jianjian and Li, Mingda and Ghasemi, Hadi and Huang, Xiaopeng and Li, Xiaobo and Chen, Gang},
abstractNote = {Due to their unique properties, polymers – typically thermal insulators – can open up opportunities for advanced thermal management when they are transformed into thermal conductors. Recent studies have shown polymers can achieve high thermal conductivity, but the transport mechanisms have yet to be elucidated. Here we report polyethylene films with a high thermal conductivity of 62 Wm–1 K–1, over two orders-of-magnitude greater than that of typical polymers (~0.1 Wm–1 K–1) and exceeding that of many metals and ceramics. Structural studies and thermal modeling reveal that the film consists of nanofibers with crystalline and amorphous regions, and the amorphous region has a remarkably high thermal conductivity, over ~16 Wm–1 K–1. This work lays the foundation for rational design and synthesis of thermally conductive polymers for thermal management, particularly when flexible, lightweight, chemically inert, and electrically insulating thermal conductors are required.},
doi = {10.1038/s41467-019-09697-7},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United States},
year = {2019},
month = {4}
}

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