Synergistic effect between polyhedral oligomeric silsesquioxane and flame retardants

Synergistic effect was observed between two types of flame retardant and two types of polyhedral oligomeric silsesquioxanes (POSS). The polymer matrix was represented by low density polyethylene Bralen RB 2-62 (Slovnaft). The polyethylene was mixed with nanofillers OctaIsobutyl POSS and TriSilanolIsobutyl POSS. The flame retardants was represented by ADK STAB (R) FP 2200 and Exolite (R) APP 722. The flammability was investigated by UL-94 test. The results showed that the APP/POSS system had important flame retardant and anti-dripping abilities for LDPE