Highly elastic and ultrathin nanopaper-based nanocomposites with superior electric and thermal characteristics

Jingyao Sun, Jian Zhuang, Junfeng Shi, Semen Kormakov, Ying Liu, Zhaogang Yang, Daming Wu

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

High-performance elastic and ultrathin electric heating materials were prepared by forced impregnation of polydimethylsiloxane (PDMS) matrix into multiwalled carbon nanotube (MWCNT) nanopaper (NP) by using an efficient two-step ultrasonication treatment technique. Morphological feature, stretchability, electrical property, and electric heating behavior of the MWCNT/PDMS nanocomposite film (NC film) were investigated. Scanning electron microscope images confirmed that the MWCNTs were well impregnated in PDMS matrix with no aggregations. Relatively high MWCNT content (> 10 wt%), which results from the compact stack structure within NPs, in the MWCNT/PDMS NC film guaranteed the high thermal conductivity and excellent electric heating behaviors with significantly improved uniformity. The small thermal capacitance of PDMS matrix and high thermal conductivity of MWCNTs enabled temperature response rapidity at constant applied voltages. The superior and stable heating–cooling cyclic performances (temperature responsiveness, electric power efficiency, and steady-state maximum temperature) of MWCNT/PDMS NC film made it an ideal option for actual electric heating applications.

Original languageEnglish (US)
Pages (from-to)8436-8449
Number of pages14
JournalJournal of Materials Science
Volume54
Issue number11
DOIs
StatePublished - Jun 15 2019
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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