Lanxess has developed a universally suitable vulcanization accelerator for tires and technical rubber goods. It is said the trial product VP Vulkacit TZ offers sufficient time for full cross-linking, even at high temperatures. This new vulcanization accelerator is a sulfenamide based on aromatic amines and is suitable for all types of rubber.
“We are now inviting our industrial customers to try our new high-performance VP Vulkacit TZ for themselves. We are already producing pilot-scale samples,” said Jens-Hendrik Fischer, who is responsible for the global antioxidants and accelerators business in the Advanced Industrial Intermediates business unit.
For mixtures produced using a sulfenamide vulcanization accelerator, the German brand explained that the cure times tend to be short in relation to the scorch times, making this group of accelerators suitable not only for press heating, but also for injection and transfer molding processes, which are primarily used for complex geometries.
Furthermore, the trial product has a long scorch time. “There is no premature onset of the vulcanization process for the rubber, which has to pass through pipelines in the mixing process, and consequently it does not stick to sections of the production plant. This particular property of our VP Vulkacit trial product thus ensures a smooth production process and homogeneous cross-linking, which means that the structure can cure evenly,” said Melanie Wiedemeier-Jarad, technical service manager for the AII Antioxidants and Accelerators unit.