Facile preparation of a hydrophobic intumescent flame retardant toward simultaneously enhanced flame retardancy and smoke suppression of thermoplastic polyurethane

In this work, a hydrophobic intumescent flame retardant (HIFR) based on ammonium polyphosphate (APP), tannic acid (TA), CuO and polydimethylsiloxane (PDMS) was fabricated via an aqueous phase reaction.