The Mechanical and Tribological Properties of Epoxy Nanocomposites with WS2 Nanotubes

Elad ZOHAR, Sharon BARUCH, Mark SHNEIDER, Hanna DODIUK, Samuel KENIG, H. Daniel WAGNER, Alla ZAK, Alex MOSHKOVITH, Lev RAPOPORT, Reshef TENNE
2011 Sensors & Transducers  
It is now possible to synthesize inorganic nanotubes (INT) of WS2 in a pure phase and substantial amounts. Due to their crystalline perfection, they are characterized by excellent mechanical behavior. This study is dedicated to the investigation of the effect of INT-WS2 on the mechanical, thermal, adhesion and tribological properties of epoxy based nanocomposites. Various concentrations up to 1.0 wt% of the INT were added to the epoxy matrix. First a method was developed to mix the nanotubes in
more » ... ix the nanotubes in the epoxy resin matrix. A combination of both magnetic stirring and ultrasonic mixing was used. The adhesion, fracture toughness and strain energy release rate were studied. The INT-WS2 were found to significantly improve all these properties. The wear of the nanotubes-reinforced epoxy was eight-times lower than that of pure epoxy. These results suggest numerous applications.
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