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Using Hansen solubility parameters to predict the dispersion of nano-particles in polymeric films
Chalmers University of Technology, Sweden.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science.
AkzoNobel, Sweden.
AkzoNobel, Sweden.
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2016 (English)In: Polymer Chemistry, ISSN 1759-9954, E-ISSN 1759-9962, Vol. 7, no 9, p. 1756-1764Article in journal (Refereed) Published
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Abstract [en]

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.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016. Vol. 7, no 9, p. 1756-1764
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Physical Chemistry Polymer Chemistry Other Chemistry Topics
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URN: urn:nbn:se:ri:diva-79DOI: 10.1039/c5py01935dScopus ID: 2-s2.0-84959193138OAI: oai:DiVA.org:ri-79DiVA, id: diva2:924678
Available from: 2016-04-28 Created: 2016-04-28 Last updated: 2019-06-19Bibliographically approved

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