
260 Green Composites from Natural Resources
From the gure it is quite clear that moisture absorbance (M
abs
) increases
with increase in humidity level ranging from 20% to 90% with increase in ber
loading.
From the chemical resistance behavior of the green composite samples, it is quite
clear that resistance toward chemicals decreases with the increase in ber loading
(Figure 11.3a and b).
This may be due to the increase in the number of hydrophilic OH groups in ber
matrix bonding due to which composites with a higher number of OH groups with
higher loading are vulnerable to chemical attack, resulting in decreased resistance
toward the chemicals. ...