Preparation of novel magnetic polyurethane foam nanocomposites by using core-shell nanoparticles

Mir Mohammad Alavi Nikje, Sahebeh Tamaddoni Moghaddam, Maede Noruzian
2016 Polímeros  
Preparation of novel magnetic polyurethane foam nanocomposites by using core-shell nanoparticles Polímeros: Ciência e Tecnologia, vol. 26, núm. 4, octubre-diciembre, 2016, pp. 297-303 Associação Brasileira de Polímeros São Carlos, Brasil Available in: http://www.redalyc.org/articulo.oa?id=47048884005 Sbstract Iron oxide magnetic nanoparticles (NP's) converted to the core-shell structres by reacting with by n-(2-aminoethyl)-3aminopropyl trimethoxysilane (AEAP) incorporated in polyurethane
more » ... polyurethane flexible (PUF) foam formulations. Fourier transform spectra, thermal gravimetric analysis, scanning electron images, thermo-mechanical analysis and magnetic properties of the prepared nanocomposites were studied. Obtained data shown that by the increasing of the amine modified magnetic iron oxide NP's up to 3% in the polymer matrix, thermal and magnetic properties improved in comparison with pristine foams. In addition, due to the presence of functional groups on the magnetic NP's surface, hard phases formation decrease in the bulk polymer and cause decreasing of glass transition temperature.
doi:10.1590/0104-1428.2193 fatcat:xfis7pxkcncwzjyxyzekagrntu