**4.4 Fractured surface morphology using field emission scanning electron microscope (FESEM)**

Scanning electron microscope (SEM) is basically measurement the material surface by scanning through high wavelength beams with different wavelengths. The different composite materials are shown in SEM image **Figures 15**–**17**.

Field emission scanning electron microscope image for sugarcane leaf fibre pulp-reinforced composites is taken to understand microstructure. From the images, the fibre dispersion, matrix without fibres and fibre agglomeration are clearly visible. The images indicate that the failure is due to matrix failure, fibre pull-out and also due to the presence of some voids. The FESEM image of coir fibre-reinforced samples clearly shows the broken sugarcane leaf fibres. It is seen

#### **Figure 15.**

*FESEM image for pulp ratio and epoxy resin for composite sheet.*

#### **Figure 16.**

*FESEM image for pulp ratio and epoxy resin for composite sheet.*

**Figure 17.** *FESEM image for pulp ratio and epoxy resin for composite sheet.* *Functional Application for the Corn Leaf Fibre to Make Reinforced Polymer Composites Sheet DOI: http://dx.doi.org/10.5772/intechopen.101656*

from the images that void is there between fibre and matrix, which shows less compatibility of corn leaf fibre with epoxy resin. Uniform mixing are pulp ratios and other particles leads to less air voids.
