Abstract: This paper mainly introduced the present situationthe of hindered amines flame retardant at home and abroad, the types of flame retardants and the mechanism of flame retardant and the structure of hindered amines flame retardant, the action mechanism and the applied research and so on .And introduce the way to synthesis the hindered amines flame retardant, synthesis steps and methods and how to characterization. And discussed how to improve the factors of experiment and maked the analysis and discussion to the spectrogram of experiment product
Keywords：flame retardants; hindered amine; mechanism; spectrogram
