Synthesis and characterization of waterborne polyurethane/clay Nanocomposite - Effect on adhesive strength

  • Mohammad Mizanur Rahman
  • , Hye Jin Yoo
  • , Chung Jung Mi
  • , Han Do Kim*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Waterborne polyurethane (WBPU)/clay nanocomposites were synthesized using prepolymer process with different clay content (0-5 wt%) of organoclay cioisite 15A. The optimum dispersion temperature of clay in polyot was found to be 8o°C at 3 hours. The XRD confirmed the exfoliation dispersion of clay by polyol in WBPU/clay nanocomposite. IR and 1H-NMR spectroscopy confirmed the unreacted condition of clay component. Particle size of the WBPU/clay nanocomposite dispersion was increased with increasing of clay concentration. Water swelling was decreased with increasing of clay up to the optimum content (2 wt %) and then leveled off. The thermal stability, mechanical property and adhesive strength were increased with increasing clay content up to 2 wt% to reach its maximum value.

Original languageEnglish
Pages (from-to)251-258
Number of pages8
JournalMacromolecular Symposia
Volume249-250
DOIs
StatePublished - 2007
Externally publishedYes

Keywords

  • Adhesion
  • Clay
  • Nanocomposites
  • Polyurethanes
  • Waterborne

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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