A Novel Bioresidue to Compatibilize Sodium Montmorillonite and Linear Low Density Polyethylene

Bjarke Høgsaa, Ellie H. Fini, Jesper De Claville Christiansen, Albert Hung, Masoumeh Mousavi, Erik Appel Jensen, Farideh Pahlavan, Thomas H. Pedersen, Catalina Gabriela Sanporean

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Despite the improved thermal stability and mechanical properties of polymer-clay nanocomposites compared to pure polymeric materials, creating nanocomposites with enhanced thermomechanical properties requires a good compatibility and dispersion of the clay within the polymeric matrix. This paper introduces a bioresidue extracted from waste biomass to modify montmorillonite clay to compatibilize it with linear low density polyethylene (LLDPE). The biomodified clay was compounded, melt blended, and injection molded with LLDPE, and the thermomechanical properties of the resulting nanocomposites were investigated with oscillatory rheometry, thermogravimetric analysis, X-ray diffraction, attenuated total reflectance Fourier transform infrared spectroscopy, and transmission electron microscopy to assess the compatibility of the biomodified clay and the polymer. The structure of the biomodified clay ranged from partially intercalated to fully exfoliated. Hansen solubility parameters indicate that almost all of the identified compounds in the bioresidue are soluble with polyethylene. Density functional-based modeling showed a trade-off between electrostatic screening and dispersion interactions affecting the overall interlayer spacing in polymer-clay nanocomposites.

Original languageEnglish (US)
Pages (from-to)1213-1224
Number of pages12
JournalIndustrial and Engineering Chemistry Research
Issue number4
StatePublished - Jan 31 2018
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering


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