How is Stratek’s system different?
Stratek’s technology is called Tek-Mix™. There are three main differences with other devices: a. Other methods typically use a higher expansion-contraction ratio (defined rheologically as a convergence ratio) with fewer repetitions. b. Stratek also includes a shearing action that separates and redistributes melts. The action is more gentle but highly repetitive. c. Stratek operates with: · high clearances (1000 to 1500 µm, versus competitive systems at 15 to 300 µm) · low temperatures · low backpressure · low energy input This also allows high load masterbatches to be processed, such as 50% to 70% clay or pigment loading. The combination of these actions results in extremely uniform mixing, at lower temperatures and pressures than alternative systems. These low temperatures and pressures in turn result in a very low energy draw, and that reduces shear rates and shear stresses in the melt. The result is reduced molecular damage, providing improved products and improved physical properti
