Transient Electromechanical Behavior of Carbon-Black-Filled Rubber

Abstract

This work has shown the sensitivity and uniqueness of conductivity and dielectric constant transient response to compressional stress for natural rubber filled with specific types of carbon black. The strong correlation between conductivity and capacitance (both steady-state magnitudes and transients) is attributed to the polymer itself. A qualitative model for these effects is based on changes of conductive and resistive microelements due to fracture of the carbon black matrix. Transient electrical measurements of this type should be applicable to carbon-black- (or metal-) filled dielectrics over a large range of resistivity.

Effect of axial stretching on electrical resistivity of short carbon fibre and carbon black filled conductive rubber composites

“…Appreciable changes in electrical conductivity against degree and rate of mechanical deformation in black filled composites have already been reported in the literature 16–25. The present paper discusses the effect of elongational deformation on the electrical properties of conductive carbon black and SCF filled ethylene–vinyl acetate (EVA), ethylene–propylene–diene rubber (EPDM) and their 50/50 blends.…”

Оценка Возможности Использования Композиционных Материалов С Углеродным Наполнителем В Качестве Датчиков Давления

“…Их работа основана на изменении объемного электрического сопротивления при сжимающей нагрузке. Известны сложные и неоднозначные зависимости этой величины от деформации сжатия [1].…”

Thermal and Electrical Properties of Irradiated Styrene Butadiene Rubber-Metal Composites

“…An appropriate method to detect different degrees of the filler dispersion in the rubber matrix is based on the measurements of the electrical conductivity of the rubber compound either with dc [18] or ac [19] mode. Figure (2 a-e) represent the dependence of the current density J as log J (Amp/m 2 ) versus the electric field E (Volt/m) at room temperature (30 o C) for all samples irradiated with different γ -doses.…”