SYNERGISTIC FLAME-RETARDANCE OF POLYPROPYLENE (1)

摘要

In burning of polypropylene, addition of decabromo diphenyl oxide plus antimony trioxide greatly improved oxygen index, but seriously increased smoke density. Addition of hydrated basic magnesium calcium carbonate only improved oxygen index slightly, but dramatically reduced smoke density. Combining these two flame-retarding systems made polypropylene very flame retardant without serious increase in smoke density.