Waverly Carbon currently has two products, a pelletised rCB and a powder form rCB, specifically designed for the plastic and rubber industries. However, the recycled carbon black products can also work with the ink industry and other applications where a high concentration of carbon is required.
In 2021 we will bring to market a new product called Waverly Pureform, a Recovered Carbon Black material with low levels of silica, zinc and sulphur. In parallel to this development all our products will be available in low melt EVA sacks.
Waverly rCBp is produced from a mix of truck and passenger tyres with tied specifications to ensure a consistent quality. The refined material, which was carefully crafted to the correct particle size, is packaged directly in either bulk bags or 25kg sacks. Its powder form aids dispersion in aqueous solution or compounds with very low viscosity.
A mix of truck and passenger tyres with tied specifications, are used to produce a consistent quality for Waverly rCBg. This is then treated with a secondary process where the refined rCB powder is processed through a pelletiser to produce uniformed pellets, similar to standard carbon black pellets. Pelleted material assists conveying systems for bulk handling and ensures better dispersibility in both plastic masterbatch and rubber compounding.
Waverly rCBg and Waverly rCBp can be used as a replacement or partial replacement (with high percentage substitution) for grades like carbon black N550 or total replacements for the N600, N700 and N900 series.
Due to the morphology of rCB (from the original virgin carbon black grades used in tyres), high structure, high surface area and low reinforcing properties in line with the N500, N600 and N700 families, our recycled carbon black exhibits excellent dynamic properties giving the customer, low hysteresis, lower storage modulus and low Tan delta compared to current carbon blacks used for similar applications.
For higher strength applications with a need for greater reinforcing properties we are currently working with our suppliers to develop a rCB with higher reinforcing capabilities through the pyrolysis process.
Normal furnace carbon black has a graphitic surface which allows the increase in conductivity, which depends on the structure and surface area of the specific carbon black grade. Recycled carbon black has some inorganic material and saturated carbon on the surface, therefore, the electrical resistivity of rCB lies in between pure and oxidised furnace black. This allows the use of Recovered Carbon Black for specific electrical applications; where low conductivity is required and the band on the conductivity is narrow and stable regardless of the loading level of rCB in the compound.
Our R&D team has developed a cost effective method for removing impurities from rCB. In late 2020 we will be installing our first ash removal line, capable of producing 180 tonnes per year. This material will have less than 1% ash content, which will allow for its use as a full or partial substitute to the carbon black N300 and N500 series, such as the popular carbon black N550. This rCB achieves similar physical properties for the desired compound, whether for plastic or rubber.
Subject to successful testing, Waverly Pureform will be launched in 2021 and expand line capacity subject to demand. Waverly Pureform will be available as a granulated product and as a powder.
Recovered Carbon Black has many attractive characteristics
With its environmentally friendly footprint and near zero emissions during production the environmental benefits of a recycled carbon black is evident when compared to the destructive consequences of virgin carbon black production.
If you would like to speak to us about our Recovered Carbon Black please contact us