Fillers intumescent properties

Flammability resistance. An increased flammability resistance has been noticed as an important property enhancement involving nano-platelets incorporated into polymers involving exfoliated clay this involves the formation of a stable carbon/nano-platelet or nanofibre surface. This surface exhibits analogous characteristics to intumescent coatings, whereby the resultant char provides protection to the interior of the specimen by preventing continual surface regeneration of available fuel to continue the combustion process. The primary advantage noted with nano-filler incorporation is the reduction in the maximum heat release rate. 

On the other hand, the imique barrier properties of nano-dispersed polymeric composites are of interest of polymer combustion due to specific laminar morphology. This type of structure is especially effective in comparison with the other forms of fillers because of the labyrinth effect . Researches in this area will allow defining an influence of diffusion of low-molecular products of pyrolysis on the process of micro-intumescence in a superficial layer of burning polymers. 

Introduction of the modifying additive PEDA in combination with a filler - thermal expanded graphite - permits to increase the coating intumescence by 11 times, resulting in improved fire and heat protective properties of the coatings and reduced destmction of fiberglass plastic. 

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