**4.1 Density for the composite sheet**

It can be observed from **Table 7** and **Figure 8** that with pulp ratio (35%) and thickness of 4 mm and 8 mm, density values are 1.183 g/m3 and 0.987 g/m3 , *Functional Application for the Corn Leaf Fibre to Make Reinforced Polymer Composites Sheet DOI: http://dx.doi.org/10.5772/intechopen.101656*

**Figure 4.** *Tensile strength testing instrument.*

respectively. Further, it is observed that at low pulp ratio (%), density (g/m3 ) for composite sheet materials is higher. With pulp ratio of 55% in composite sheet and for both thickness levels 4 mm and 8 mm, lower density is observed. Increase in pulp ratio % in sample results in decrease in density for composite material sheet.


**Table 3.** *Tensile specimen dimensions.*

**Figure 6.** *Impact strength testing instruments.*

**Figure 7.** *Impact specimen of IZOD shape.*

*Functional Application for the Corn Leaf Fibre to Make Reinforced Polymer Composites Sheet DOI: http://dx.doi.org/10.5772/intechopen.101656*


#### **Table 4.**

*Impact specimen dimensions.*


#### **Table 5.**

*Sheet thickness results.*


#### **Table 6.**

*Sample GSM.*


**Table 7.** *Sample density.*

**Figure 8.** *Effect of the pulp ratio and thickness on density properties.*

**Figure 9.** *Image for composite sheet material.*

**Figure 10.** *Specimen size for composite sheet material.*

This may be due to the presence of some voids. It can be seen from the images that void is there between fibre and matrix, which shows less compatibility of corn leaf fibre with epoxy resin at higher pulp ratio (**Figures 9**–**11**).

*Functional Application for the Corn Leaf Fibre to Make Reinforced Polymer Composites Sheet DOI: http://dx.doi.org/10.5772/intechopen.101656*

**Figure 11.** *Specimen break after tensile strength test for composite material.*
