Mechanical properties of nanocomposites reinforced by carbon nanotube sponges

Wenjie Zhao, Tong Li, Yupeng Li, Daniel J. O'Brien, Mauricio Terrones Maldonado, Bingqing Wei, Jonghwan Suhr, X. Lucas Lu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Carbon nanotube (CNT) sponge exhibits unique porous and hierarchical structure that are beneficial to the design of ultralight and tough composites. In this study, CNT sponges (undoped and boron doped) reinforced polydimethylsiloxane (PDMS) composites were fabricated. Mechanical properties of the composite, including compressive modulus, rate-dependent modulus, stress relaxation behaviors, dynamic viscoelastic properties, and their dependency on temperature, were systematically investigated. A micromechanical model, Mori-Tanaka model, was validated to describe the mechanical behaviors of CNT sponge reinforced composites. By coupling with boron-doped CNT sponge, PDMS composites showed remarkable improvement of mechanical properties, including compressive modulus (70%), viscous modulus (243%) and damping capacity (50%). Such reinforcement effects can be controlled by the morphology of CNT sponges, as the boron-doped and undoped nanocomposites showed distinct viscoelastic behaviors. The results proved that CNT sponge reinforcement is a promising strategy to develop engineering composites with both outstanding mechanical stiffness and controllable viscoelastic performances.

Original languageEnglish (US)
Pages (from-to)157-164
Number of pages8
JournalJournal of Materiomics
Volume4
Issue number2
DOIs
StatePublished - Jun 1 2018

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Nanocomposites
nanocomposites
carbon nanotubes
mechanical properties
Mechanical properties
Boron
composite materials
Composite materials
boron
Polydimethylsiloxane
reinforcement
Reinforcement
stress relaxation
Stress relaxation
stiffness
Damping
damping
Stiffness

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Zhao, Wenjie ; Li, Tong ; Li, Yupeng ; O'Brien, Daniel J. ; Terrones Maldonado, Mauricio ; Wei, Bingqing ; Suhr, Jonghwan ; Lucas Lu, X. / Mechanical properties of nanocomposites reinforced by carbon nanotube sponges. In: Journal of Materiomics. 2018 ; Vol. 4, No. 2. pp. 157-164.
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Mechanical properties of nanocomposites reinforced by carbon nanotube sponges. / Zhao, Wenjie; Li, Tong; Li, Yupeng; O'Brien, Daniel J.; Terrones Maldonado, Mauricio; Wei, Bingqing; Suhr, Jonghwan; Lucas Lu, X.

In: Journal of Materiomics, Vol. 4, No. 2, 01.06.2018, p. 157-164.

Research output: Contribution to journalArticle

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AU - Zhao, Wenjie

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AU - Wei, Bingqing

AU - Suhr, Jonghwan

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