Preparation and properties of short oil alkyd resin/TiO 2 nanocomposites based on surface modified TiO 2 nanoparticles
АуториRadoman, Tijana S.
Džunuzović, Jasna V.
Spasojević, Pavle M.
Jeremić, Katarina B.
Popović, Ivanka G.
Džunuzović, Enis S.
Чланак у часопису (Објављена верзија)
© 2016 Society of Plastics Engineers
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Alkyd resin/TiO2 nanocomposites (NC) were prepared from short oil alkyd resin and TiO2 nanoparticles (NPs) surface modified with in situ formed imine ligand, based on 3,4-dihydroxybenzaldehyde and oleylamine, or with three gallic acid esters. The short oil alkyd resin was synthesized from sunflower oil, phthalic anhydride, and trimethylolpropane. Unmodified and surface modified TiO2 NPs were examined by transmission electron microscopy. Rheological investigation revealed that prepared dispersions have higher dynamic viscosity than pure alkyd resin. Using different characterization methods it was obtained that NCs have similar thermooxidative stability as alkyd resin, lower glass transition temperature, better barrier properties, enhanced hardness, better chemical resistance, and lower adhesion to the metal, except in the case of NC prepared using TiO2 NPs surface modified with imine, which exhibited better adhesion to the metal than pure alkyd resin.
Кључне речи:adhesion / chemical stability / glass transition / high resolution transmission electron microscopy / nanocomposites / nanoparticles / resins / sunflower oil / titanium dioxide / transmission electron microscopy
Извор:Polymer Composites, 2018, 39, 5, 1488-1499
ISSN: 0272-8397 (print); 1548-0569 (electronic)