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Crystalline polymer nanofibers with ultra-high strength and thermal conductivity

Author

Listed:
  • Ramesh Shrestha

    (Carnegie Mellon University (CMU))

  • Pengfei Li

    (Carnegie Mellon University (CMU))

  • Bikramjit Chatterjee

    (Pennsylvania State University)

  • Teng Zheng

    (University of Notre Dame)

  • Xufei Wu

    (University of Notre Dame)

  • Zeyu Liu

    (University of Notre Dame)

  • Tengfei Luo

    (University of Notre Dame)

  • Sukwon Choi

    (Pennsylvania State University)

  • Kedar Hippalgaonkar

    (Agency for Science Technology and Research)

  • Maarten P. Boer

    (Carnegie Mellon University (CMU))

  • Sheng Shen

    (Carnegie Mellon University (CMU))

Abstract

Polymers are widely used in daily life, but exhibit low strength and low thermal conductivity as compared to most structural materials. In this work, we develop crystalline polymer nanofibers that exhibit a superb combination of ultra-high strength (11 GPa) and thermal conductivity, exceeding any existing soft materials. Specifically, we demonstrate unique low-dimensionality phonon physics for thermal transport in the nanofibers by measuring their thermal conductivity in a broad temperature range from 20 to 320 K, where the thermal conductivity increases with increasing temperature following an unusual ~T1 trend below 100 K and eventually peaks around 130–150 K reaching a metal-like value of 90 W m−1 K−1, and then decays as 1/T. The polymer nanofibers are purely electrically insulating and bio-compatible. Combined with their remarkable lightweight-thermal-mechanical concurrent functionality, unique applications in electronics and biology emerge.

Suggested Citation

  • Ramesh Shrestha & Pengfei Li & Bikramjit Chatterjee & Teng Zheng & Xufei Wu & Zeyu Liu & Tengfei Luo & Sukwon Choi & Kedar Hippalgaonkar & Maarten P. Boer & Sheng Shen, 2018. "Crystalline polymer nanofibers with ultra-high strength and thermal conductivity," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03978-3
    DOI: 10.1038/s41467-018-03978-3
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    Cited by:

    1. Taeyong Kim & Stavros X. Drakopoulos & Sara Ronca & Austin J. Minnich, 2022. "Origin of high thermal conductivity in disentangled ultra-high molecular weight polyethylene films: ballistic phonons within enlarged crystals," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Ying Liu & Chan Wang & Zhuo Liu & Xuecheng Qu & Yansong Gai & Jiangtao Xue & Shengyu Chao & Jing Huang & Yuxiang Wu & Yusheng Li & Dan Luo & Zhou Li, 2024. "Self-encapsulated ionic fibers based on stress-induced adaptive phase transition for non-contact depth-of-field camouflage sensing," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    3. Chase M. Hartquist & Buxuan Li & James H. Zhang & Zhaohan Yu & Guangxin Lv & Jungwoo Shin & Svetlana V. Boriskina & Gang Chen & Xuanhe Zhao & Shaoting Lin, 2024. "Reversible two-way tuning of thermal conductivity in an end-linked star-shaped thermoset," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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