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Fabrication and electrical properties of regenerated cellulose‑loaded exfoliated graphene nanoplatelet composites

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2019, 29(2), pp.115-122
  • DOI : 10.1007/s42823-019-00003-5
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : September 14, 2017
  • Accepted : January 24, 2019
  • Published : April 1, 2019

Joel Renaud Ngouanom Gnidakouong1 1 Xiaoyuan Gao 1 Abdullahil Kafy 1 Jaehwan Kim 1 KIM JOOHYUNG 1

1인하대학교

Accredited

ABSTRACT

Low cost and scalable manufacturing of highly doped cellulose for enhanced multifunctional applications is still an issue. In this work, eco-friendly nanocomposites were fabricated by incorporating regenerated cellulose (RC) of 10, 30, and 50 wt% into an exfoliated graphene nanoplatelets (GNPs), resulting in the intercalation of GnPs. The thermal and electrical properties of hybrid nanocomposites were investigated. The structural property was conducted through scanning electron microscope and X-ray diffraction analyses. Strong frequency-dependent dielectric response was found due to the change of the permittivity and the loss tangent of nanocomposites by different content of RC, which is associated with the polarizations behavior. Non-elastic relaxation at the GNPs–RC chains interfacial areas in an alternating field was identified as the main cause of polarization losses among others. Detailed ferroelectric measurements provided the evidence of the ideal resistive behavior of the nanocomposites, which are confirmed by the resistivity measurements along the out-of-plane direction of the nanocomposite sheets.

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Total Citation Counts(KCI+WOS) (5) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (5) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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