Synergistic Effects of Nano-Fillers on Halogen-Free Fire Retardant Polypropylene Composites

Halogen-free fire retardant (HF-FR) composites with good mechanical properties are important in the manufacturing sector and Polypropylene (PP) is one of the most widely used polymers in composite applications. However, PP is highly flammable and its flame retardancy is becoming more and more important. This paper reveals an environmentally friendly, cost effective technology to reduce flammability and improve physical properties of PP. The research involves the development of HF-FRPP with a polymeric fire retardant additive, based on ammonium polyphosphate (APP) labelled as AMP and a nano filler, exfoliated and intercalated within the polymer matrix contributing to enhanced mechanical properties useful in many technology platforms. The goals achieved in this research include determining optimal formulations of HF-FRPP, based on effective FR additive with a low dosage of cost effective nano-fillers that are able to transfer effectively into the manufacturing industry.