@conference{
author = "Bajić, Danica M. and Fidanovski, Bojana and Radisavljević, Igor and Bogosavljević, Marica and Totovski, Ljubica and Stojanović, Dušica B.",
year = "2021",
abstract = "As one of transition metal dichalogenides, tungsten disulphide (WS2) is well known for its solid
lubricating behavior, but besides this feature, it exhibits extraordinary thermal stability and mechanical
resistance. The outstanding mechanical strength of WS2 is most pronounced when it comes in form of
multi-layer hollow nanoparticles and nanotubes: inorganic fullerene-like nanoparticles and inorganic
nanotubes, denoted as IF-WS2 and INT-WS2, respectively. These structures have extraordinary shock resistance
properties, pressure and heat resistance, that can be exploited for a variety of applications. They have been
studied as reinforcing fillers of various polymers, but they might be also added as reinforcement of matrix in
more complex composites, like CFRPs. Our research aimed to examine their reinforcing effect on laminated
composites based on aramid fabric and poly(vinyl butyral), PVB, intended for demanding applications: in
personal protection equipment, ballistic protection, sports equipment, automotive, nautical and aircraft
engineering. WS2 nanostructures have been incorporated in PVB by temporary dissolving in ethanol, by
ultrasonication and intensive mechanical mixing. After impregnation of aramid fabrics ethanol would
evaporate, and layers of aramid with thermoplastic binder PVB would be integrated by hot pressing. SEM
analysis confirms the uniform distribution of WS2 nanostructures in the prepared composite material. DSC
analysis reveals the effect of WS2 addition on thermal resistance of the new material, while PVB/aramid
mechanical resistance was examined using DMA, impact test and tensile test. IF- WS2 has imported higher
thermal resistance and ductility improvement, while INT-WS2 has significantly improved tensile and impact
strength of the composite.",
journal = "Abstract Book / 3 rd Edition of Materials Science and Nanoscience Webinar, V-Mat2021, September 17-18, 2021",
title = "WS2 nanostructures as thermo-mechanical reinforcement of composite materials for advanced applications",
pages = "40",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6933"
}