Research Article

Tailoring the Curing Kinetics of NBR-Based Rubber Compounds for Additive Manufacturing of Rod Seals

Table 5

Activation energy and rate constant of unoptimized and optimized recipes.

RecipeActivation energy EA (kJ⋅mol−1)Speed constant k at 160°C (min−1)Coefficient of determination R2

#1: Reference72.0−1.580.993
#2: Optimized with 1 phr CTP78.6−0.970.996
#3: Optimized by exchanging the curing system82.4−0.621.000