Nano-dispersed cellulose nanofibrils-PMMA composite from pickering emulsion with tunable interfacial tensions

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Cellulose nanofibrils (CNFs) are promising candidates as a sustainable polymer reinforcement material, but incompatibility makes it difficult to be incorporated into a polymeric matrix. Pickering emulsion-templated synthesis, in which nanometer-sized polymeric particles covered with CNFs are formed, provides a useful route to disperse nano-sized fillers within incompatible polymers. However, CNF does not always adsorb to monomer droplets (e.g., methyl methacrylate), which is the most important step fabricating polymeric particles covered by CNFs. Here, by adding an appropriate oil to a monomer, we show that the adsorption of CNF on the oil can be dramatically enhanced by controlling the interfacial tension. Using this approach, poly (methyl methacrylate) (PMMA) nanocomposites reinforced with CNFs were fabricated. The PMMA nanocomposite films exhibit high optical properties and mechanical properties as well as thermal stability. The Pickering emulsion template with the additional oil approach can be applied to any emulsion-based polymerization methods for nanocomposite materials.
Publisher
ELSEVIER SCI LTD
Issue Date
2020-11
Language
English
Article Type
Article
Citation

CARBOHYDRATE POLYMERS, v.247, pp.116762

ISSN
0144-8617
DOI
10.1016/j.carbpol.2020.116762
URI
http://hdl.handle.net/10203/276405
Appears in Collection
CBE-Journal Papers(저널논문)
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