(a)
(b)

Figure 7: Changes of the storage modulus E’ (a) and the loss factor tgδ value (b) as a function of temperature of Moplen polypropylene (PP), with filler in the form of talc 15% (T15), 20% (T20), 30% (T30), and talcum 20% with flame retardant (T20 V0).