Skip to main content


Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 3 The LOI and UL-94 values of pure PP, PP/TAPP20 and PP/SAN–TAPP composites

From: Enhancing the mechanical and thermal properties of polypropylene composite by encapsulating styrene acrylonitrile with ammonium polyphosphate

Samples LOI (%) UL-94 Remark
PP 19.8 No rating High dripping
PP/SAN–TAPP5 21.4 No rating High dripping
PP/SAN–TAPP10 23.3 No rating Moderate dripping
PP/SAN–TAPP15 25.5 V-2 Low dripping
PP/SAN–TAPP20 27.5 V-2 Low dripping
PP/(SAN10 + TAPP10) 23.4 No rating Moderate dripping
PP/TAPP20 27.8 V-2 Low dripping