Mechano-adaptive thin film of graphene-based polymeric nanocomposite for enhancement of lubrication properties

Intriguing low frictional properties of 2D materials can be harnessed for thin-film lubrication in small-scale devices by making their mechano-adaptive coatings. Herein, the reduced graphene oxide-polystyrene (rGO-PS) nanocomposite synthesized single-step chemical processing oxide and polystyrene is applied to prepare self-lubricating thin film over silicon substrate. The non-covalent π-π interaction between aromatic rings π-electron network rGO furnished excellent interfacial adhesion extended mechanical strengthening properties. further supported higher glass transition thermal decomposition temperatures rGO-PS nanocomposite. with a uniform thickness 850 nm coated on surface spray pyrolysis deposition technique. showed significantly friction (μ = 0.12) compared substrate 0.6). microscopic spectroscopic analyses confirmed graphene-based counter interface steel ball. Furthermore, couldn’t damage/rupture even after 100,000 cyclic contacts, which revealed its remarkable wear-resistivity. mechano-adaptability promise potential nanomaterials applications.