02 Application in flame retardant field

Due to the stable structure of Si-O-Si, POSS will form a dense silicon oxide film layer at high temperatures, which can effectively prevent the escape of small molecules and the dripping of molten droplets after the polymer is cracked, and block the transfer of oxygen and heat to the interior of the polymer. , thereby improving the flame retardant properties of polymer materials. POSS has an inorganic silicon core and a designable organic R group. As a new type of halogen-free nano-flame retardant, it is widely used in the flame retardancy of epoxy resin, polyester, polyamide and other polymers. According to the structure and properties of POSS, there are condensed phase flame retardants based on -Si-O- type ceramic layer barrier and -Si-O-P- and other bridging effects; through the design of POSS side chain functional groups, the blow-out effect can be achieved Flame retardant; in addition, the flame retardant R group of POSS combined with nanomaterials such as graphene and boron nitride nanosheets can achieve synergistic flame retardancy in the condensed phase and gas phase.
IOTA 9501 Octamethyl POSS -IOTA (phenylsilicone.com)