$4\mathrm{.}13\mathrm{.}1$: Calculating the density and crystallinity of two PTFE materials $($Problem $4\mathrm{.}25$ in the

$6$th edition$).$

$545644\mathrm{.}3905410.$qx$3$zqy$7$

Jump to level $1$

The density and associated percent crystallinity for two polytetrafluoroethylene materials are as follows:

$($a$)$ Compute the density of totally crystalline polytetrafluoroethylene.

${}_c=,\frac{g}{c}{m}^3$

$($b$)$ Compute the density of totally amorphous polytetrafluoroethylene.

${}_a=,\frac{g}{c}{m}^3$

$($c$)$ Determine the percent crystallinity of a specimen having a density of $2\mathrm{.}03\frac{g}{c}{m}^3.$

$\%$ crystallinity $=$