Indentation Depth Dependent Mechanical Behavior in Polymers

Table 2

ratio where and are, respectively, the universal hardness at = 0.2 mN and large indentation depths [28].

Sample
PS	1.84
SAN 1	1.79
SAN 2	1.73
PMMA 1	1.78
PMMA 2	1.77
PVC 1	1.60
PVC 2	1.57
PC	1.71