Year: 2025
Type: article
Abstract: This study investigates the thermomechanical resistance and electrochemical behaviour of a composite coating, based on a thermoplastic polymer, poly(vinyl butyral) (PVB), known for its great adhesion to various surfaces, with incorporated single-layer graphene nanoplatelets. Composite coating samples are produced by solvent-casting technology, in form of thin films in teflon moulds for the mechanical and thermal analyses, and on a thin carbon mat as a coated carrier for experimental electrode specimens. By employing Fourier-transform infrared spectroscopy the interaction of the incorporated graphene nanoplatelets with the polymer matrix is examined. Differential scanning calorimetry is applied to examine the thermal resistance of the hybrid material. For the obtained polymer/graphene films, mechanical properties are determined: indentation hardness and tensile strength. Electrochemical properties of the samples are investigated by cyclic voltammetry. Results obtained for samples with graphene nanoplatelets are compared to neat polymer and neat carbon mat and indicate that the inclusion of graphene significantly improves the materials’ thermomechanical resistance and their potential for use as an electrode material in electrochemical energy storage devices. These findings suggest that PBV/graphene composites and coatings are promising materials for advanced electrochemical applications.
Source: Integritet i vek konstrukcija
Authors: Milica Košević, Marija Baltić, Bojana Fidanovski, Miloš Vorkapić, Danica Bajić
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4416882000