A Review on the Effect of Various Chemical Treatments on the Mechanical Properties of Renewable Fiber-Reinforced Composites

Figure 4

SEM micrographs of (a) tensile test of 5% NaOH-treated composites, (b) matrix microcrack, (c) fiber pull-out and void formation in the impact test specimen, (d) fractured surface of impact test specimen, and (e) hollow structure of natural hybrid fiber composites [12].