Investigation of the kinetics of modification of bitumens by isocyanates with polyethers,and a study of the thermal stability of composites based on them

摘要

A study of processes of modification of bitumens with different chemical additives is of interest from the viewpoint of improving their service properties.In references [1 ] and [2] we showed that isocyanates and polyethers are effective additives making it possible to increase significantly the physicomechanical properties of bitumens.However,the kinetics of the modification of bitumens with these additives and also the thermal stability of the composites obtained have not been studied.