Improvement of ethylene-vinyl-acetate fire retardancy by expanded graphite for wire coating applications

A novel kind of mono-component polymeric flame retardant, expanded graphite grafted ammonium polyphosphate (EG-g-APP) was produced via grafting molecular chain. The flammability of ethylene vinyl acetate (EVA)/EG and EVA/EG-g-APP composites were investigated systematically by pyrolysis combustion flow calorimeter (PCFC) analysis. The results showed the significant flame retardancy performance of modified expanded graphite compared to neat EG