| Abstract: | Radiopaque polymers can be used in medicine. Conventional protective shields against radiation X contain harmful lead compounds that are heavy and fragile. The aim of this work was to study the check the properties of selected fillers as X-radiation absorbing substance and them use in natural rubber (NR) composites. Fillers and simultaneously active substances were bismuth (III) oxide (Bi2O3), gadolinium (III) oxide (Gd2O3), tungsten (III) oxide (WO3) and antimony (III) oxide (Sb2O3). The polymeric matrix consisted of NR and sulfuric cross-linking system was applied. The properties of the fillers were determined from zeta potential and particle size measurements. X-ray absorption measurements were carried out using isotopic source 57Co (122?keV). The mechanical properties of the thin 1?mm composite plates were examined. |
