Table 2. Swelling Ratios and Crosslink Densities of the Wiper Blade Lips. The Crosslink Densities were Calculated Using the Interaction Parameter of NR

Sample	Swelling ratio	Crosslink density (10−5 mol/cm3)
Cl-0	1.598 ± 0.021	25.32 ± 0.60
Cl-2	1.566 ± 0.016	26.26 ± 0.50
Cl-4	1.567 ± 0.012	26.23 ± 0.37