Effects of MAPP Compatibilization and Acetylation Treatment Followed by Hydrothermal Aging on Polypropylene Alfa Fiber Composites

Figure 4

Variation of storage moduli versus humidity (DMTA analyses): (a) before aging and (b) after aging for (blue line) virgin PP, (green line) F20UT, (light blue line) F20AT, and (black line) F20AMAT.

(a)

(b)