Effect of Glass Fiber Incorporation on Flexural Properties of Experimental Composites
Figure 3
SEM images of groups. (a) SEM (original magnification: 150x) of UR-20 showing clear interaction between fibers and resin and homogeneous distribution of these components in the composite; (b) SEM of 20-FR (original magnification: 150x) showing interaction fibers and resin and heterogeneous distribution of these components in the composite; (c) SEM of 10-UR (original magnification: 1000x) showing the crack development region with a clear cohesive fracture around glass fibers within the crack (arrow); (d) SEM of 10-FR (original magnification: 1000x) showing the crack development region without resin cohesive fracture around glass fibers within the crack; (e) fiber dislodgement on 30-FR (original magnification: 150x) as a result of few resin matrix to keep fibers together.
