Newly modified MMT and its application with intumescent additives as new flame retardant system for polyurethane polymer

Montmorillonite (MMT) clay was modified using the new modifier butyl acrylate resin. The new modified MMT have better thermal stability in comparison with butyl acrylate. The newly modified MMT mixed with polyurethane (PU) and formed a new nanocomposite PU formulation, and the structure has been proven by atomic force microscopy (AFM). New flame retardant systems containing the modified nanoclay were added to the polyuerethane polymer. The flammability properties of the new PU formulations were evaluated by cone calorimeter and ISO 1210 tests. The thermal stability of the formulations was studied by TGA and DSC. The new flame retardant systems gave the PU higher fire properties and good thermal stability.