The Effect of Thermooxidative Aging on the Durability of Glass Fiber-Reinforced Epoxy

Figure 16

SEM observation on the cryofractured surface of EHG250-68-37 composite specimens; (a) fiber-matrix adhesion of unaged sample; (b) zoom on fiber-matrix adhesion corresponding to (a); (c) fiber-matrix adhesion of aged sample; (d) zoom on fiber-matrix adhesion corresponding to (c); (e) matrix detached from fiber bundle of aged sample; (f) fiber pullout of aged sample.