ABSTRACT
ABSTRACT: The ultimate purpose of this research is to develop bio-inspired control systems for artificial eyeballs with short reaction time and low voltage demand using Dielectric Elastomer Actuators (DEA). To reach this goal compositions of acrylic or silicone have been prepared as the first step We have planned to develop stretchable electrode systems with high fatigue resistance using the shrinkage property of these double-networked material in the electric field and performance improvements for DEA materials after optimization of rubber formulation. As the first step of this research silicone blends with carbon black content have been prepared in internal mixer. Mechanical properties of blends such as tensile strength and elongation at break values have been obtained for all the samples. Temperature Scanning Stress Relaxation (TSSR) testing machine have been used to evaluate stress relaxation properties of the samples which are related to the network structure of the vulcanizates [1]. Crosslinking density of the vulcanizates have been calculated using Pulse-NMR technique. T2 relaxation time has been used to calculate crosslinking density of the vulcanizates according to the Hann spin-echo principle [2].
