Loading...

Characterization of PVDF/Nanoclay Nanocomposites Prepared by Melt, Solution, and Co-Precipitation Methods

Rahmani, P ; Sharif University of Technology | 2012

1010 Viewed
  1. Type of Document: Article
  2. DOI: 10.1080/1023666X.2012.660316
  3. Publisher: 2012
  4. Abstract:
  5. Poly (vinylidene fluoride) (PVDF) nanocomposites were prepared via melt, solution, and co-precipitation mixing methods using Cloisite 30B as organoclay. The results from X-ray diffraction patterns display intercalation or exfoliation of nanoclay depending on the nanocomposite preparation method. The solvent cast and co-precipitated samples showed exfoliation, while intercalation was observed in the nanocomposites prepared by melt mixing. Introducing organoclay induced formation of β-crystals in the PVDF nanocomposites as evidenced by XRD and FT-IR. FT-IR analysis indicated that the samples prepared by the co-precipitation method had a higher tendency for β phase formation, while the sample prepared by melt mixing exhibited higher α phase content. The degree of crystallinity was decreased, while the melting and crystallization temperature of the nanocomposite was increased over those of the pristine PVDF
  6. Keywords:
  7. β phase ; Nanocomposite ; Cloisite ; Co-precipitated ; Coprecipitation method ; Degree of crystallinity ; FTIR analysis ; Melt mixing ; Melting and crystallization ; Mixing method ; Nano clays ; Phase content ; Phase formations ; Polyvinylidene fluorides ; Preparation method ; PVDF ; Solvent cast ; XRD ; Mixing ; Organoclay ; Precipitation (chemical) ; X ray diffraction ; Nanocomposites
  8. Source: International Journal of Polymer Analysis and Characterization ; Volume 17, Issue 4 , 2012 , Pages 291-301 ; 1023666X (ISSN)
  9. URL: http://www.tandfonline.com/doi/abs/10.1080/1023666X.2012.660316