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LDPE/EVA/graphene nanocomposites with enhanced mechanical and gas permeability properties

Tayebi, M ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1002/pat.3537
  3. Publisher: John Wiley and Sons Ltd , 2015
  4. Abstract:
  5. In the present work, graphene oxide (GO) and reduced graphene oxide (RGO) were incorporated at low-density polyethylene (LDPE)/ethylene vinyl acetate (EVA) copolymer blend using solution casting method. Monolayer GO with 1-nm thickness and good transparency was synthesized using the well-known Hummers's method. Fourier transform infrared and X-ray photoelectron spectroscopy data exhibited efficient reduction of GO with almost high C/O ratio of RGO. Scanning electron microscopy showed the well distribution of GO and RGO within LDPE/EVA polymer matrix. The integrating effects of GO and RGO on mechanical and gas permeability of prepared films were examined. Young's modulus of nanocomposites are improved 65% and 92% by adding 7wt% of GO and RGO, respectively. The tensile measurements showed that maximum tensile strength emerged in 3wt% of loading for RGO and 5wt% for GO. The measured oxygen and carbon dioxide permeability represented noticeably the attenuation of gas permeability in composite films compared with pristine LDPE/EVA blend
  6. Keywords:
  7. Graphene oxide ; LDPE/EVA ; Reduced graphene oxide ; Carbon dioxide ; Carbon films ; Composite films ; Elastic moduli ; Gas permeability ; Graphene ; Loading ; Mechanical permeability ; Mechanical properties ; Nanocomposites ; Polyvinyl acetates ; Scanning electron microscopy ; Tensile strength ; X ray photoelectron spectroscopy ; Carbon dioxide permeability ; Fourier transform infra reds ; Graphene oxides ; Low density polyethylene(LDPE) ; Permeability properties ; Reduced graphene oxides ; Reduced graphene oxides (RGO) ; Solution-casting method ; Gas permeable membranes
  8. Source: Polymers for Advanced Technologies ; Volume 26, Issue 9 , 2015 , Pages 1083-1090 ; 10427147 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/pat.3537/full