1,2,5,6,9,10-Hexabromocyclododecane has the characteristics like: high efficient, wide usage, etc. It is mainly used in flame retarding textile, polypropylene, high impact polystyrene and polystyrene foam, etc.After the treatment by microencapsulation, the performance of 1,2,5,6,9,10-Hexabromocyclododecane has improved: A. Lower acidity and improve decomposition temperature; B. improve bromine containing flame retardants softening temperature; C. eliminate the peculiar smell of the flame retardant; D. improve material’s heat resistance, weather resistance, thus, the products can better adapt to the needs of the consumer market.