National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Elektrorheologické vlastnosti siliky modifikované polyanilinem
Pavlínek, V. ; Lengálová, A. ; Sáha, P. ; Quadrat, Otakar ; Stejskal, Jaroslav
Electrorheological properties of silica suspensions particles coated with polyaniline in silicone oil have been investigated. The role of the interfacial polyarization of particles is emphasized.
Vliv .gamma.-záření na reologické vlastnosti tavenin ultravysokomolekulárního polyethylenu
Mikešová, Jana ; Nevoralová, Martina
Ultra-high molecular weight polyethylene is widely used as material in orthopaedic implants. Melt rheology was used to evaluate the result of simultaneous crosslinking and chain scission process in the polymer, .gamma.-irradiated in the solid state. The predominant mechanism in the process was strongly influenced by irradiation dose and dose-rate. An important result was obtained for the polymer irradiated with the sterilization dose 25 kGy and stored in nitrogen when no significant degradation of the polymer was observed.
Vývoj fázové struktury při toku polymerních směsí
Fortelný, Ivan
State of art in description of the phase structure development in flowing polymer blends is discussed. It is shown that the rule satisfactorily predicting a type of the phase structure does not exist. Graphic solution of the equation describing dynamic equilibrium between the droplet breakup and coalescence provides satisfactorily prediction of the dependence of average droplet size on system parameters.

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