University of Chemical Technology and Metallurgy-Sofia 8 St.Kliment Ohridski Blv. 1756 Sofia Bulgaria;
University of Chemical Technology and Metallurgy-Sofia 8 St.Kliment Ohridski Blv. 1756 Sofia Bulgaria;
Institute of General and Inorganic Chemistry Bulgarian Academy of Sciences Acad.G.Bonchev Str. bl.11 1113 Sofia Bulgaria;
Rice; husk; ash; fillers; natural; rubber; mechanical; characteristics; dynamic; properties;