The density and associated percent crystallinity for two

nylon $6,6$ materials are as follows:

a$)$ Compute the densities of totally crystalline and totally

amorphous nylon $6,6.$

b$)$ Determine the density of a specimen having $55\mathrm{.}4\%$ crystallinity.

$\backslash$rho $($g$/$cm$3)$ Crystallinity

$(\%)$

$1\mathrm{.}18867\mathrm{.}3$

$1\mathrm{.}15243\mathrm{.}7$