%0 Journal Article %T Barium and strontium ferrite %A Ivan Hudec %A J¨¢n Kru£¿el¨¢k %A Martina Matvejov¨¢ %A Rastislav Dosoudil %J Journal of Elastomers & Plastics %@ 1530-8006 %D 2019 %R 10.1177/0095244318792036 %X In the first part of the research, rubber magnetic composites were prepared by incorporation of strontium and barium ferrite in concentration scale ranging from 0 to 200 phr into rubber matrices based on acrylonitrile¨Cbutadiene rubber and styrene¨Cbutadiene rubber. The main objective was to investigate the influence of the type and content of magnetic filler on the cross-link density, physical¨Cmechanical and magnetic characteristics of the prepared composites. In the second part of the study, the content of magnetic fillers was kept on constant level¡ª200 phr and the main aim was to investigate the change in mutual combination of both fillers on the cross-linking and properties of the rubber magnets. The results revealed that both fillers show reinforcement effect in the rubber matrices. The higher tensile strength of composites was achieved by application of barium ferrite. Magnetic properties of composite materials were significantly influenced by magnetic characteristics of magnetic fillers. Higher remanent magnetic induction of barium ferrite was reflected in higher remanent magnetization of the equivalent composites. On the other hand, higher coercivity of strontium ferrite resulted in higher coercivity of strontium ferrite-filled composites %K Barium ferrite %K strontium ferrite %K rubber composites %K physical¨Cmechanical properties %K magnetic characteristics %U https://journals.sagepub.com/doi/full/10.1177/0095244318792036