So far, resol curing could be designated as the work horse for the dynamic vulcanisation of EPDM/PP-based thermoplastic vulcanisates (TPVs).
This means a reduction of scorch and vulcanisation times up to 75 per cent.
Finally, it will also be shown that zeolite activation is effective not only for the thermoset vulcanisation of EPDM, but also for the dynamic vulcanisation of EPDM-based TPVs, enabling a reduction of the resol content and, thus, improving the TPV color characteristics.
Generally, thiourea-based accelerators are used in the vulcanisation of polychloroprene rubber - primarily ethylene thiourea, as it produces the highest performance rubber cure system.
A 90 per cent reduction in the quantities of MgO and ZnO required during vulcanisation, achieved through using a multifunctional accelerator - allowing [TEXT INCOMPLETE IN ORIGINAL SOURCE.