Graphite an exfoliated and organomodified filler for polymeric nanocomposites

Simha Martynková, Gražyna, Kovár, Filip, Pazourková, Lenka, Valášková, Marta and Lafdi, Khalid (2018) Graphite an exfoliated and organomodified filler for polymeric nanocomposites. Materials Today: Proceedings, 5. S103-S108. ISSN 2214-7853

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Two types of graphite were processed using mechanical route to obtain the highest possible exfoliated graphite. Using three various media, commercial dishwashing liquid, mixture of defined concentration of 4 ammonium quaternal salts and single salt hexadecyl trimethylammonium bromide with addition of ethylene glycol, the liquid exfoliation shear-forces process was employed. The process provides defined exfoliated particles with small particles size and greater crystallinity compare to original graphite. Exfoliated particles were tested using scanning electron microscopy and atomic force microscopy to explain the shape and morphology changes at shearing forces process. The particles were found as irregular rounded shapes with tiny crystals of used organic matter on the edges of particles. Such modification brings advantage for utilization exfoliated particles in polymeric nanocomposites because they will be more likely interacting with organic substance.

Item Type: Article
Uncontrolled Keywords: Graphite, exfoliation, organic modification, particles morphology, structural properties
Subjects: F200 Materials Science
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Elena Carlaw
Date Deposited: 15 Nov 2019 12:20
Last Modified: 31 Jul 2021 22:15

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