Carbon Black - DOAJ

Acrylic Rubber-Reinforced Halloysite Nanotubes/Carbon Black Hybrid Fillers for Oil Seal Applications: Thermal Stability and Dynamic Mechanical Properties

The thermo-oxidative stability, thermal stability, and dynamic mechanical properties of ACM composites and ACM hybrid composite composites consisting of a set amount of CB and a small amount of halloysite nanotubes were investigated. According to thermogravimetric results, ACM composites with dual fillers had higher breakdown temperatures and char residue concentration at 600 u00b0C than ACM conventional composites at 600 u00b0C, higher breakdown temperatures and char residue levels at 600 u00b0C than ACM traditional composites. The addition of HNT increases the thermal stability of ACM composites, as shown by the Kissinger and Flynn'u2013Wall methods.

Source link: https://doi.org/10.1155/2022/8366665

H 2 Uptake and Diffusion Characteristics in Sulfur-Crosslinked Ethylene Propylene Diene Monomer Polymer Composites with Carbon Black and Silica Fillers after High-Pressure Hydrogen Exposure Reaching 90 MPa

In the pressure ranges 1. 2 to 1. 3 MPa, we investigated the influence of two fillers, U2014CB and silica-u2014on the H2 permeation of EPDM polymers crosslinked with sulfur. The H2 diffusivities in CB-filled EPDM composites decrease because the impermeable filler increases the tortuosity and triggers filler-u2013polymer interactions; the gradual decrease in diffusivity in silica-blended EPDM composites has been attributed to a rise in tortuosity and resultes in a decrease in tortuosity. In H2 refueling stations, it is possible to find EPDM candidates with the lowest H2 permeability characteristics as seal materials, which could prevent gas leakage under heavy pressure.

Source link: https://doi.org/10.3390/polym15010162

Optimization of iodine number of carbon black obtained from waste tire pyrolysis plant via response surface methodology

For use as a filler in rubber compounds, recovered carbon black obtained from a tire pyrolysis plant was subjected to chemical and thermal treatment. Carbon black was chemically treated with nitric acid by altering the temperature, time, and carbon-to-carbon black ratio. The surface area was increased under optimal conditions, and the RCB was upgraded to commercial carbon black N330. The content of most heavy metals in RCB dropped by more than 90%, by more than 90%, while sulfur and chlorine decreased by 43. 2 percent and 53. 9 percent, respectively.

Source link: https://doi.org/10.1016/j.heliyon.2022.e11971

A Study on Aqueous Dispersing of Carbon Black Nanoparticles Surface-Coated with Styrene Maleic Acid (SMA) Copolymer

For the particle size analysis of the CB dispersions, dynamic light scattering showed significantly less reproducibility than AsFlFFF. According to AsFlFFF, the use of SMA-3000 resulted in a CB dispersion with the most uniform particle size distribution. When the milling time increased, the particle size tended to rise after 1 h of milling, owing to excessive milling's re-agglomeration of the particles. According to either 3-h of milling with the SMA-2000 or 1-h of milling with the SMA-3000, a steady CB dispersion can be obtained by either 3-h of milling or 1-h of milling with the SMA-3000.

Source link: https://doi.org/10.3390/polym14245455

Microwave Absorption Performance of Carbon Black/Polylactic Acid Composite for Fused Filament Fabrication

The absorbent and carbon black were printed as the absorbent and coaxial ring test pieces were made using fused filament manufacturing technology with polylactic acid as the matrix and carbon black as the absorbent. The results show that when the CB content is 25%, the composite has appropriate impedance matching, conduction loss, and polarization loss, resulting in the highest microwave absorption performance. The minimum reflection loss was 13. 68 GHz, with the equivalent effective absorption bandwidth of 5. 36 GHz at 2. 1 mm, as shown by a matching thickness of 2. 1 mm.

Source link: https://doi.org/10.3390/app122412747

Influence of Modified Carbon Black on Nylon 6 Nonwoven Fabric and Performance as Adsorbent Material

In Mexico, the number of chronic kidney disease sufferers continues to rise. Nonwoven fabrics with modified carbon black nanoparticles in a matrix polymer of Nylon 6 were discovered and rated as an adsorbent component of uremic toxins in this study. Nanocomposites had a higher hydrophilic characteristic in comparison to pure Nylon 6. At 15 min of contact, all nanocomposites nonwoven fabrics had high removal rates of inulin in a range of 80 to 90 percent. The majority of urea removals occurred by a high percentage in Ny6 Zytel/CB nanocomposites.

Source link: https://doi.org/10.3390/nano12234247

Effect of thermo-oxidative aging on the Payne effect and hysteresis loss of carbon-black filled rubber vulcanizates

The applications are susceptible to thermo-oxidative aging. Both the storage modulus and the loss modulus increase with increasing age, according to the results. With the increase of dynamic strain amplitude, ageing time, and aging temperature, the hysteresis loss of the material shows an increasing tendency. To determine the energy dissipation, the Kraus model is used to describe the Payne effect, while a viscoelastic model consisting of dynamic strain amplitude and loss modulus is used to illustrate Payne's effect.

Source link: https://doi.org/10.1038/s41529-022-00306-5

Research on Properties of Dopamine and Silicon Carbon Black Modified Basalt Fiber Reinforced Magnetorheological Elastomer

Polydopamine and silicon carbon black modified the basalt fibers and the basalt fibers etched by H 2 SO 4 were either modified by polydopamine or synergistically modified by PDA and silicon carbon black, making them more compatible.

Source link: https://doi.org/10.3390/polym14193949

Flexural strength and thermal properties of carbon black nanoparticle reinforced epoxy composites obtained from waste tires

Both mechanical and thermal properties of epoxy@carbon black nanocomposite manufactured by adding 0. 3, 0. 6, and 1% by weight were investigated in this report. Modified epoxy composites with nanoparticles obtained with waste may be able to produce new materials with a healthy environment and excellent properties.

Source link: https://doi.org/10.1515/chem-2022-0197

Thermochemical Conversion Processes as a Path for Sustainability of the Tire Industry: Carbon Black Recovery Potential in a Circular Economy Approach

This paper discusses the manufacturing of torrefied and carbonized waste tire samples using a labouratorial process and their subsequent laboratory analysis, particularly the elemental and proximate measurements. This preliminary investigation revealed that the carbon content in the produced rubber char reached a maximum of 75%, indicating the possibility of its reuse in the manufacture of new tires or other industrial rubber products.

Source link: https://doi.org/10.3390/cleantechnol4030040

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