Multifunctional green nanostructured composites: preparation and characterization
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2018
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Montagna, Larissa Stieven 
Montanheiro, Thais Larissa do Amaral
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The present research had as main purpose to develop and characterize multifunctional green nanocomposites based on poly(furfuryl alcohol) resin (PFA bioresin), derived from sugarcane bagasse reinforced with different contents of graphite nanosheets (GNS) (0.5, 1.0, 1.5 and 2.0 wt%) which were dispersed in PFA bioresin using an ultrasonic processor. The mixture was poured into silicone molds and cured at room temperature during 24 h followed by a post-cure at preheated oven in cycles of different temperatures. TEM analysis of GNS showed this filler consist of ultrathin and layered sheets. SEM micrographs of the cryogenic fracture of the nanocomposite presented the good interfacial adhesion between PFA bioresin and GNS. Moreover, upon GNS addition in the PFA bioresin, PFA/GNS nanocomposites demonstrated superior mechanical performance and better electrical conductivity than neat PFA bioresin.
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Materials Research Express. Bristol, v. 5, n. 5, p. -, 2018.