Abstract: In this paper, the current progress on synthesis methods for nanobarium sulfate (Nano-BaSO4), such as complexedprecipitation, microemulsion, microreactor, and so on, was introduced and the corresponding advantages and disadvantages were commented. Besides, the modified effectiveness of NanoBaSO4 on polymeric materials including optical performance, mechanical properties, crystallization behavior, rheological behavior, and thermostability were reviewed and the corresponding modified mechanism was also discussed.

Key words: nano-barium sulfate, synthesis, surface treatment, modification, polymer