TY - JOUR
T1 - A Novel Bioresidue to Compatibilize Sodium Montmorillonite and Linear Low Density Polyethylene
AU - Høgsaa, Bjarke
AU - Fini, Ellie H.
AU - Christiansen, Jesper De C.
AU - Hung, Albert
AU - Mousavi, Masoumeh
AU - Jensen, Erik Appel
AU - Pahlavan, Farideh
AU - Pedersen, Thomas Helmer
AU - Sanporean, Catalina-Gabriela
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85041444704&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.7b04178
DO - 10.1021/acs.iecr.7b04178
M3 - Journal article
SN - 0888-5885
VL - 57
SP - 1213
EP - 1224
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
IS - 4
ER -