plasticizer type Slope (mV decade-1) R
o-NPOE 58.2 ± 1.30 0.998
TCP 58.2 ± 1.40 0.999
DBP 52.3 ± 1.60 0.997
DOS 54.8 ± 1.60 0.997
DOP 50.7 ± 1.70 0.998
Table 3: Effect of plasticizer type on the performance of ICPE modified with 10 mg NaTPB.