Rheological Characterization of the Dispersibility of Graphene Nanoparticles in Polymer Nanocomposites
Vol. 58, No. 1, pp. 17-24,
Feb. 2021
10.12772/TSE.2021.58.017
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Abstract
The dispersibility of nanoparticles in polymer nanocomposites significantly
affects the mechanical, thermal, and electrical properties of the final products. The objective
of this study is to quantify the dispersibility of nanoparticles in polymer nanocomposites.
Various amounts of graphene nanoparticles were introduced in polypropylene-based
and polylactic acid-based resins through melt compounding. They were then injectionmolded
to fabricate disc-type specimens for characterizing the rheological properties of
the nanocomposites. To evaluate the dispersibility of the nanoparticles in the composites,
the associated storage (G’) and loss (G’‘) moduli were analyzed for plotting the G’-G’‘ slopes.
Furthermore, the Van Gurp-Palmen plot was employed for analyzing the increase in material
elasticity with respect to the base resins and nanoparticle compositions.
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