Honeycomb Organization of Chitin Nanocrystals (ChNCs) in Nanocomposite Films of UV-Cured Waterborne Acrylated Epoxidized Soybean Oil Emulsified with ChNCs
نویسندگان
چکیده
Stable biobased waterborne Pickering dispersions of acrylated epoxidized soybean oil (AESO) were developed using chitin nanocrystals (ChNCs) as sole emulsifier without any additives. Thin AESO-ChNC nanocomposite films produced by UV-curing thin-coated layers the AESO emulsion after water evaporation. The kinetics photopolymerization was assessed monitoring consumption acrylate groups infrared spectroscopy (FTIR). curing faster in presence ChNCs, with a disappearance induction period observed for neat AESO. coating droplets thin layer ChNCs confirmed scanning electron microscopy (SEM) observation. SEM and transmission (TEM) images revealed honeycomb organization inside cured films. mechanical, thermal optical properties studied dynamic mechanical analysis (DMA), tensile testing, differential calorimetry (DSC) transmittance measurement, function ChNC content. inclusion is strongly beneficial to increase stiffness strength films, compromising its transparency. ability act an replacement synthetic surfactants their strong reinforcing effect UV-cured offer new opportunities produce stable from application coatings adhesives.
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ژورنال
عنوان ژورنال: Biomacromolecules
سال: 2021
ISSN: ['1525-7797', '1526-4602']
DOI: https://doi.org/10.1021/acs.biomac.1c00612