materials | Carbon black
Orion’s Director Marketing Polymer Systems EMEA. She points out that Orion provides meaningful Product Safety Information (PSI) for each commercially available speciality carbon black product. These documents provide information on chemical characterisation, food contact regulations, other chemical legislation, heavy metals and trace substances, etc., including data on PAH levels.
Above: Orion is targeting water pipes with its Printex zeta A carbon black, which is claimed to offer high levels of UV protection
ductive cable compounds. Orion says it offers improved pellet properties which lead to easier dispersibility. Printex MV is designed to be used in both conductor shielding and insulation shielding layers. The product is also said to have found success in masterbatch, pipe and film applications, where very good dispersion results are obtained even at high production rates. “To further extend our conductive speciality carbon
black range, Orion has started a new conductive black family”, says Gerald Wehner, Senior Technical Market Manager Polymer Systems. The first products of this class have been launched as Printex kappa 10 Beads and Printex kappa 20 Powder. The Printex kappa 10 Beads grade is intended for
high voltage semi-conductive cable compounds. Key features include very good dispersion behaviour as well as a high purity level, which Wehner notes are essential properties for semi-conductive shielding layers in high voltage power cables. The main application area for the Printex kappa 20 Powder grade is in conductive liquid systems and sinter polymers. A comparatively low specific energy input for good dispersion also makes it a very good solution for PVC dry-blends and thermoset- ting plastics, the company says. A beaded version for conductive thermoplastic compounds is under develop- ment and will be offered “in the near future.” Orion also highlights Printex zeta A, which provides
high levels of UV protection in films and pipes. The com- pany says the product meets the most demanding requirements for drinking water pressure pipe com- pounds such as PE 100 plus, and is specifically adjusted to give the lowest possible compound moisture absorption (CMA). Printex zeta A conforms with the EU food contact regulation, which is also mandatory for potable water pipes. “We pride ourselves in our innovative developmental
work for customers’ requirements and in our due diligence to ensure product quality,” says Ina White,
30 COMPOUNDING WORLD | November 2016
Masterbatch options Deepak Tandon, Global Head of Technology at Birla Carbon Specialty Blacks, says the company has been able to successfully demonstrate a process and formulation for highly loaded black masterbatch. “Our Raven 475 was specifically designed to give higher throughputs and lower mixing energy, as well as the option to increase carbon black loading in the master- batch,” he says. “Producers see significant benefits of lower energy consumption and increased production capacity as well as being able to offer a differentiated product to their customers.” Tandon also points to Raven P125 Ultra, developed
specifically for the regulated polyethylene pressure pipe market which requires a carbon black with particle size of 10 to 25 nanometres that also must meet strict organoleptic parameters. “The carefully tailored morphology and high level of physical and chemical cleanliness are providing customers with lower mixing energy, improved dispersion and lower compound moisture pickup compared to traditional pipe application carbon blacks,” Tandon says. “Pipe converters benefit from lower surface defects for greater mechanical integrity as well as faster extrusion. Working directly with our customers, we have been able to develop these types of sustainable solutions that reduce energy consumption and provide higher final product performance.” Another area of high activity for the company is in meeting the growing need for parts with smooth surface finish and high jetness in automotive, electron- ics and household appliances. “Our high colour plastics products, such as Raven 2350 Ultra and Raven 2500 Ultra, are well suited for these applications and we plan to launch next generation products for these applica- tions in the coming months,” Tandon says. “One of the main challenges with these types of
products is the achievement of complete dispersion. Our product development efforts in the high colour thermo- plastics market are aimed at easier dispersion to provide smoother finish and superior colour and undertone.” At K 2016, Cabot featured the expanded universal
masterbatch products it introduced earlier this year, designed to meet not only increasingly strict require- ments for food-contact applications but also market demand for increased use of recycled resins. Grades
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