Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/article/doi/10.1590/0104-1428.2193
Polímeros: Ciência e Tecnologia
Scientific & Technical Article

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

Nikje, Mir Mohammed Alavi; Moghaddam, Sahebeh Tamaddoni; Noruzian, Maede

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Abstract

Iron oxide magnetic nanoparticles (NP's) converted to the core- shell structres by reacting with by n-(2-aminoethyl)-3-aminopropyl trimethoxysilane (AEAP) incorporated in 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.

Keywords

magnetic iron oxide, magnetic nanoparticles, N-(2-aminoethyl)-3-aminopropyl trimethoxysilane (AEAP), Polyurethane flexible (PUF) foam.

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