Using Hansen solubility parameters to predict the dispersion of nano-particles in polymeric films
Journal article, 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.

Cellulose

Extrusion

Nanotubes

Ring-Opening Polymerization

Nanocomposites

Author

Sofie Gårdebjer

SuMo Biomaterials

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

M. Andersson

SP Sveriges Tekniska Forskningsinstitut AB

J. Engstrom

Akzo Nobel Surface Chemistry

P. Restorp

Akzo Nobel Surface Chemistry

Michael Persson

Akzo Nobel Surface Chemistry

SuMo Biomaterials

Anette Larsson

SuMo Biomaterials

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Polymer Chemistry

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

Vol. 7 9 1756-1764

Subject Categories

Chemical Engineering

Polymer Technologies

Areas of Advance

Materials Science

DOI

10.1039/c5py01935d

More information

Latest update

11/12/2021