Study on Microstructure Effect of Carbon Black Particles in Filled Rubber Composites

Abstract

The cross sections of blended natural/styrene-butadiene (NSBR) composites filled with different volume fractions of carbon particles were observed using a Quanta 250 scanning electron microscope. In addition, the sizes and distributions of the carbon particles were analyzed using Nano Measurer. A two-dimensional representative volume element model (RVE) for a rubber composite reinforced with circular carbon particles was established, and the uniaxial tensile behaviors of polymer nanocomposites with different particle size distribution patterns were simulated using the ABAQUS software. The results showed the following. (1) For the random models, if the difference of particle size was larger and particle distance was closer, stress distribution would be denser as well as the stress concentration would become greater. However, if the difference of particle size was small, for the case of same particle volume fraction, the particle size has little influence on the macromechanical properties whether the average size is large or small. (2) The correlation between the volume fraction and distribution of the carbon particles revealed that when the volume fraction of carbon black particles was larger than 12%, clusters between carbon particles in the polymer nanocomposites could not be avoided and the modulus of the composites increased with an increase in the cluster number.

A study on nitrile rubber/polyvinyl chloride blend vulcanization kinetics with different fillers by using single isothermal rheograph

“…The GRT particles are 250 μm length, and the surface area per unit volume is less than that of the HAF carbon black particles (maximum 250 nm) or its cluster (maximum 460 nm). 49…”

Direct Visualization of Carbon Black Aggregates in Nitrile Butadiene Rubber by THz Near-field Microscope

“…1a and b. Previous studies have reported that these small grains are CB aggregates [42][43][44] , however, this information was insufficient to conclude that the grain structures exclusively contained CB fillers. Therefore, EDS analysis was performed on a particular grain to conduct a comprehensive analysis of the elemental composition, as observed in Figs.…”

“…Similarly, the preparation of flat specimens with thicknesses between 20 nm and 100 nm is necessary for CB detection using TEM, which have more stringent requirements 21,22 . Furthermore, SEM cannot clearly distinguish between CB and rubber matrix because most organic elastomers and CB are mainly composed of carbon atoms 23 . Therefore, research on rubber compounds necessitates the development of instrumentation that can detect and identify CB aggregates without the need for pretreatment.…”

The role of Palm Fronds Charcoal Waste Particles On Mechanical, Thermal, and Acoustic Insulation Properties of Epoxy Composite

“…Carbon composites have become a crucial component in modern technology, with numerous applications in military, civilian, energy, medical, and environmental fields. Polymer composites, made with affordable materials and equipment, are easy to produce and offer both process ability and cost-effectiveness [5][6][7].Composite materials are produced by combining or merging different materials or qualities in which the component elements are individually distinct, or, two or more phases combined physically, which result in a new material that has excellent features if compared to the features of the individual phases [8][9][10].In opposing to alloys, every phase of composites keeps its distinguished physical, mechanical, and chemical properties [9,11,12].The essential utilities of composites are good stiffness, high specific strength, and good electrical and thermal properties results. In addition to lightweights when they are compared with alloys or ceramics products [13,14].…”