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

Figure 5

SEM micrographs of fractured surfaces (a) before aging and (b) after aging for composites: ((a1), (b1)) virgin PP, ((a2), (b2)) F20UT, ((a3), (b3)) F20AT, and ((a4), (b4)) F20AMAT.

(a)

(b)