A. Ward, S. El-Sabbagh, N. A. El-Aal
2008
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Influential Citations
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Journal
Kgk-kautschuk Gummi Kunststoffe
Abstract
The effects of zinc stearate (ZnSt) on the properties of natural rubber NR were studied by means of ultrasonic and dielectric spectroscopy. Incorporation of zinc stearate increases marginally stress at break, modulus and enhances the physico-mechanical properties. It also affects the longitudinal & transverse ultrasound velocities, elastic modului, hardens and other measured properties according to ultrasonic measurements performed at 2 MHz. The broad-band dielectric relaxation (0.01 Hz-10 MHz) reveal that, E' increases in the presence of zinc stearate, comparable to white fillers and zinc stearate acts as a plasticizer for the ionic domains at higher temperatures.