Flame-Retardant and Thermal Degradation Mechanism of Caged Phosphate Charring Agent with Melamine Pyrophosphate for Polypropylene

Figure 4

(a) TGA and (b) DTG curves of MPP, PEPA, and MPP/PEPA under air atmosphere. Note: the mass ratio of MPP to PEPA was 1 : 2.

(a)

(b)