Using Hansen solubility parameters to predict the dispersion of nano-particles in polymeric films
Artikel i vetenskaplig tidskrift, 2016

We suggest a rough and straightforward method to predict the dispersibility of modified cellulose nanocrystals (CNC) in nanocomposites using Hansen solubility parameters (HSP). The surface of CNC was modified using a novel approach where Y-shaped substituents with two different carbon chain lengths were attached to the surface. Approximate HSP values were calculated for the modified CNC, and dispersions of unmodified and modified CNC in solvents with varying HSPs were studied. The best dispersibility was observed in dichloromethane, when the CNC surface was modified with longer carbon chains. Dichloromethane has HSP similar to low-density polyethylene (LDPE). Nanocomposites with both unmodified and modified CNC were produced. The materials with modified CNC showed increased adhesion between the filler and the matrix, followed by a decreased water permeability compared to unmodified CNC, suggesting a better dispersibility of modified CNC in LDPE and confirming the usefulness of this approach.

Nanotubes

Nanocomposites

Ring-Opening Polymerization

Cellulose

Extrusion

Författare

Sofie Gårdebjer

Kemi och kemiteknik, Tillämpad kemi, Farmaceutisk teknologi

SuMo Biomaterials

M. Andersson

SP Sveriges Tekniska Forskningsinstitut

J. Engstrom

Akzo Nobel Surface Chemistry AB

P. Restorp

Akzo Nobel Surface Chemistry AB

M. Persson

Akzo Nobel Surface Chemistry AB

Chalmers University of Technology

Anette Larsson

Kemi och kemiteknik, Tillämpad kemi, Farmaceutisk teknologi

SuMo Biomaterials

Polymer Chemistry

1759-9954 (ISSN) 1759-9962 (eISSN)

Vol. 7 1756-1764

Ämneskategorier

Kemiteknik

Polymerteknologi

Styrkeområden

Materialvetenskap

DOI

10.1039/c5py01935d