Facile preparation of graphene nanoribbon filled silicone rubber nanocomposite with improved thermal and mechanical properties

Lu GAN, Songmin SHANG*, Chun Wah Marcus YUEN, Shou Xiang JIANG, Nicy Mei LUO

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

99 Citations (Scopus)

Abstract

In the present study, graphene nanoribbon was prepared through unzipping the multi walled carbon nanotubes, and its reinforcing effect as a filler to the silicone rubber was further investigated. The results showed that carbon nanotubes could be unzipped to graphene nanoribbon using strong oxidants like potassium permanganate and sulfuric acid. The prepared graphene nanoribbon could homogeneously disperse within silicone rubber matrix using a simple solution mixing approach. It was also found from the thermogravimetric analysis curves that the thermal stability of the graphene nanoribbon filled silicone rubber nanocomposites improved compared to the pristine silicone rubber. Besides, with the incorporation of the nano.ller, the mechanical properties of the resulting nanocomposites were significantly enhanced, in which both the tensile stress and Young's modulus increased by 67% and 93% respectively when the mass content of the graphene nanoribbon was 2.0 wt%. Thus it could be expected that graphene nanoribbon had large potentials to be applied as the reinforcing filler to fabricate polymers with increased the thermal and mechanical properties.

Original languageEnglish
Pages (from-to)237-242
Number of pages6
JournalComposites Part B: Engineering
Volume69
DOIs
Publication statusPublished - Feb 2015
Externally publishedYes

Bibliographical note

Funding Information: We gratefully acknowledge the grant (Project No. ECS 532712 ) from the Research Grants Council of Hong Kong , and Mr. Lu Gan would like to thank the Research Committee of The Hong Kong Polytechnic University for providing him scholarship.

Keywords

  • A. Polymer-matrix composites (PMCs)
  • B. Mechanical properties
  • B. Thermal properties
  • Graphene nanoribbon

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