Effect of Carbon Black on Curing Behavior, Mechanical Properties and Viscoelastic Behavior of Natural Sponge Rubber-Based Nano-Composites

Abstract

Natural rubber (polymer designation cis-1-4 polyisoprene, is obtained from the sap ("latex") of several rubber-yielding plants (e.g.,HeveaBrasiliensisandPartheniaargentatum) by coagulation with chemicals, drying, electrical coagulation, and other processes. Foamy or sponge structure of natural rubber (NR) is very useful in aerospace and as auxetic materials (exhibiting negative poisons ratio) for use in application of homeland security.The main aim of this research to estimate the influence of carbon black on mechanical properties, curing and viscosity variation behaviors of the natural rubber based composites. Different amounts of carbon black were used along with other fillers. The influence of carbon black on curing behavior and mechanicalproperties of natural rubber foams was investigated at different feedingratios of the carbon black. The physical properties of the foamed NRs were then measured as a function of carbon blacks content. The mechanical properties of the foamed NRs such as tensile strength,strength at break and modulus,were gradually increased with increasingcarbon black content whereas elongation decreasedat break.

Effect of graphene treated with cyclohexyl diamine by diazonium reaction on cure kinetics, mechanical, thermal, and physical properties of natural rubber/graphene nanocomposite foam

“…The elongation at break of NRF/UG3 and NRF/CG3 were similar to that of unfilled NRF. Generally, the elongation at break of NRF composites decreased with increasing filler content due to the rigidity of fillers [11,15,16,[48][49][50]. However, in our case the addition of graphene particles does not impair the elongation at break of NRF nanocomposites, meaning that it can retain the elastic behavior of NRF product with high tensile strength.…”

“…Some fillers (e.g., calcium carbonate , kenaf powder , and rice husk powder ) can significantly improve tensile strength and compressive stress of NRF only at high filler loading. Nevertheless, some fillers such as carbon black and NRF/organoclay nanocomposites can provide high impact on the properties of NRF. The intrinsic filler factors that effect on the final properties of NRF composites include filler geometry, size and size distribution, content, compatibility, filler‐polymer interaction and the functional group of filler.…”

“…The simple and effective way to modify the properties of NR is an incorporation of high performance filler. Generally, silica and carbon black have been used as reinforcing fillers in rubber industries to improve the mechanical properties of the rubber product. The reinforcing effect of filler depends on filler content, particle size and size distribution of filler, geometry of filler, and filler–polymer interaction .…”

Auxetic Nanocomposite based on Styrene Butadiene Rubber (SBR) Foam with Varying Nano-carbon Loading

“…It was empirical that mechanical properties and viscoelastic nature of nanocomposites varied with loading of reinforcing filler material [9,10]. The SEM micrograph exhibited the type and extent of the foamy structure formed.…”

Sömürge Hindistan ında İslâmî Akımlar: Ehl-i Hadis Cemaati

“…42 88 Delhi'de kurduğu Miyân Sâhib Medresesi'nde verdiği hadis dersleri ile şöhret bulmuştur. 89 Bu tarihten sonra sözü edilen medrese cemaatin merkezi haline gelmiştir. 90 Azimâbâdî Hindistan'ın her bölgesinde hocasının hadis rivâyetiyle meşgul olan öğrencilerine rastlanabileceğini dile getirir.…”