The rocky road to perfect silica compounding

摘要

1. Processing advantages 1.1 High uptake of mixing energy, low slip effect 1.2 Low Mooney viscosity following mixing 1.3 Very stable viscosity with time after mixing 1.4 Excellent extrusion performance 1.4.1 High flow rates 1.4.2 Low extruder pressures 1.4.3 Good surface and edge finish to extrudate 1.5 Long scorch time. 2. Cured Properties 2.1 Lower change in modulus and hardness 2.2 More stable compounds than with 1st or 2nd Gen, products (high modulus, high tensile strength) 3. Dynamic properties 3.1 Lower heat build up on flexing 3.2 Positive influence on tyre dynamic property 3.2.1 Tan δ at high temperature is improved.