The PTFE-nanocomposites mechanical properties for transport systems dynamic sealing devices elements

[摘要] The mechanical properties study results of polymer nanocomposites based on polytetrafluoroethylene with modifiers in the form of micro- and nanoscale cryptocrystalline graphite and silicon dioxide powders are determined. The nanocomposites mechanical properties determined values provide high sealing degree of transport systems dynamic sealing devices elements. When the temperature changes from cryogenic to high positive then the elastic modulus, tensile strength decrease significantly and nonlinearly, the latter limits the composite usage in heavily loaded tribosystems operating at elevated temperatures.

[发布机构] Omsk State Technical University, Mira ave., 11, Omsk; 644050, Russia^1

[效力级别] 物理学 [学科分类] 力学，机械学

[关键词] Elevated temperature;Nano scale;Polymer nanocomposite;Temperature changes;Transport systems;Tribosystems