Inorganic nano-fillers can improve the mechanical properties

water and heat resistance and selective permeability of the modified polyurethane(PU) materials

as well as introduce some other novel features such as antibacterial

electromagnetic shielding

and shape memory. Thus in recent years

the investigation of inorganic nano-filler modified PUs has become one of the frontier hotspots of PU modification research. This paper presents a concise review on the recent research progresses of PU nanocomposites. Following the brief introduction of some primary methods employed for preparation of PU nanocomposites

recent progresses in multifunctional coatings

synthetic leather

biomedical and shape memory materials have been reviewed

with emphasis on the improvement of mechanical properties and the introduction of some functional properties by nano-filler modification

and some future research directions of PU nanocomposite materials have also been briefly prospected.