Adhesion behavior of graphene oxide on spherical polymer particles

Sinwoo Kim, Sang Soo Lee, Jonghwi Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Graphene-coated polymer particles have attracted research interests due to their emerging applications derived from their controlled structure and morphology. To control the properties of graphene oxide (GO)-polystyrene (PS) composite particles, the adsorption time and instantaneous adsorption conditions were investigated by varying their mixing method. Polystyrene particles prepared by emulsion polymerization were modified to have positive surface charge by adsorption of polyethylene (PEI) on the surface of PS particles. GO prepared by the chemical exfoliation method had negative surface charge from the oxygenated groups. The adsorption of the negatively charged GOs onto the positively charged PS particles was successfully completed, and it was found that a longer adsorption time and a greater difference in the instantaneous relative concentration led PS-GO particles to have more homogeneously coated surfaces without aggregation.

Original languageEnglish
Pages (from-to)162-166
Number of pages5
JournalPolymer (Korea)
Volume37
Issue number2
DOIs
Publication statusPublished - 2013 Mar

Keywords

  • Adhesion behavior
  • Composite particle
  • Graphene oxide
  • Mixing method.

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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