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Compósitos de poliestireno e argila aniônica funcionalizada com cinamato com propriedade de absorção de UV

Polystyrene composites with 1, 3 and 5% in weight of cinnamate-functionalized anionic clay were prepared following a melt state intercalation route using twin-screw co-rotational extrusion followed by injection molding in order to obtain materials with distinct and UV absorbing properties using commonly available processes. The composites were characterized by XRD, MET, TG, DSC...

Nanocomposite of photocurable epoxy-acrylate resin and carbon nanotubes: dynamic-mechanical, thermal and tribological properties

In this study, the thermal, dynamic-mechanical and tribological behavior of nanocomposites of a photocurable epoxy-acrylate resin and multiwalled carbon nanotubes (MWCNT) are investigated. A route consisting of a combination of sonication, mechanical and magnetic stirring is used to disperse 0.25-0.75 wt. (%) MWCNT into the resin. Two photocuring cycles using 12 hours and 24...