Review of epoxy nano-filled hybrid nanocomposite coatings for tribological applications

IF 5.9 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2024-11-02 DOI:10.1016/j.flatc.2024.100768

Mohammed Fuseini , Moustafa Mahmoud Yousry Zaghloul , Djibrine Abakar , Mai Mahmoud Yousry Zaghloul

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Abstract

Epoxy resins, known for their chemical stability, electrical insulation, and bonding properties, are widely used in mechanical friction applications. However, their brittleness and low abrasion resistance limit their tribological performance. To address these challenges, researchers have focused on enhancing the tribological properties of epoxy coatings by incorporating various nanofillers. This review highlights the significant impact of nanofillers, such as graphene oxide (GO), molybdenum disulfide (MoS₂), and polytetrafluoroethylene (PTFE), on the friction, wear resistance, and thermal stability of epoxy nanocomposite coatings. For instance, the inclusion of MoS₂ in epoxy resulted in up to a 90 % reduction in the coefficient of friction, while rGO and PTFE composites exhibited an 88 % improvement in wear rate and an 88 % reduction in friction. Additionally, hybrid nanofillers, such as MoS₂-graphene combinations, demonstrated remarkable synergy, reducing friction by 99 % compared to pure epoxy coatings. The practical implications of these findings are profound, offering enhanced durability, reduced energy loss, and improved performance in high-stress mechanical applications such as automotive, aerospace, and industrial machinery. These improvements also have the potential to contribute to increased fuel efficiency and reduced environmental impact by lowering CO₂ emissions. This review emphasizes the trends and challenges in scaling up these nanocomposite systems, highlighting future research directions for optimizing nanofiller dispersion and addressing mechanical degradation under harsh conditions.

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来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)