Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/1720
Title: PECVD application to obtain polymer coated graphene nanoplatelets and development of new epoxy nanocomposites
Authors: Yanardağ, Duygu
Ahmetli, Gülnare
Karaman, Mustafa
Kocaman, Süheyla
Keywords: Nanocomposites
Graphene Nanoplatelets
Pecvd
Surface Modification
Epoxy
Mechanical-Properties
Glycidyl Methacrylate
Corrosion-Resistance
Nanofiller Hybrids
Thermal-Properties
Carbon Nanotubes
High-Quality
Functionalization
Dispersion
Exfoliation
Issue Date: 2022
Publisher: Budapest Univ Technol & Econ
Abstract: In this study, graphene nanoplatelets (GNPs) were synthesized from graphite by a liquid-phase exfoliation (layer separation) method, and their surfaces were functionalized with poly(glycidyl methacrylate) (PGMA) by using the rotating bed plasma-enhanced chemical vapor deposition (PECVD) method. Fourier-transform infrared spectroscopy (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and thermogravimetric (TGA) analyses were performed to characterize the unmodified (u-GNP) and modified GNP (PGMA-GNP). Epoxy nanocomposites were prepared with both types of GNPs at different loading levels (0.1-2% by weight). The role of the surface modification of the GNPs on the mechanical, thermal, electrical conductivity, contact angle, water sorption, and corrosion properties of the epoxy nanocomposite coatings was also investigated. Consequently, the tensile strength and Young's modulus of the epoxy resin (ER)/PGMA-GNP nanocomposites were enhanced by 10.2-20 and 3.3-18.4%, respectively, as compared to the ER/u-GNP composites. Moreover, the nanocomposites prepared with PGMA-GNP had better water sorption and wettability properties than those prepared with u-GNP, but lower electrical conductivity. The corrosion test results showed that the addition of GNPs to epoxy effectively improved the corrosion resistance of the epoxy composites in high salinity, basic, and acidic environments.
URI: https://doi.org/10.3144/expresspolymlett.2022.2
https://hdl.handle.net/20.500.13091/1720
ISSN: 1788-618X
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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