Brabender instruments

Figure 8-28 Mechanical Model for Postmortem Striated Muscle. Source From C.W. Brabender Instruments, Inc., South Hackensack, New Jersey.

A counter-rotating, fully intermeshing twin-screw extruder (model 2008 C. W. Brabender Instruments Inc.) was used to extrude a series of commercially prepared masterbatch samples. The extruder was equipped with three heating zones two located in the barrel and one in the die. 

Figure 12-2. (a) Typical fusion curve. (Courtesy of C. W. Brabender InstrumenTs, Inc.) (b) Fusion curve, heat, and shear stability. (Courtesy of C. W. Brabender Instruments, Inc.)... 

Blends were prepared in a Plasti-Corder Digi-System internal mixer from C.W. Brabender Instruments Inc. at 2001C and 50 RPM for 8 minutes under a constant nitrogen flow. The HDPE, PP and PS homopolymer volume fractions were kept constant at 50, 40 and 10%, while the SEB compositions were of 0, 1, 5 and 15 g/lOOml of PS. After blending, the blends were quenched in cold water to freeze-in the morphology. 

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