The thermal and fire retardant property of polyurea, formed by the poly-addition reaction of a modified diisocyanate with an oligomeric diamine, has been studied using the thermogravimetric analysis and microscale combustion calorimeter (MCC). The effect of morphology of silicates such as layered (organoclay), tubular (halloysite) and particulate (nanosilica) on the thermal and flame retardant properties of polyurea was studied. The results showed that the addition of nanofillers with ammonium polyphosphate (APP) to polyurea improved the thermal as well as fire retardant properties. Synergistic and additive effect has also been found with the combination of nanofillers with APP.

Effect of structural morphology of silicates on the thermal and fire retardancy of polyurea

243rd National Meeting (2012)

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