Blend master rheogram

The viscosity versus shear rate data for HDPE/PMMA blend were obtained [87] from only a single source [89] and at a solitary temperature of 160°C (Table B3 of pendix B). However, an exhaustive range of 12 compositions including the pure HDPE and pure PMMA polymer were covered. The data were available only in the low-shear-rate range from 0.01 to 1/s. Using a set of 36 data points, the master rheogram shown in Fig. 4.39 was created. 

Only limited data on PS/PMMA blend have been used [87] in order to generate the master rheogram shown in Fig. 4.40. A total of three compositions (0.75/ 0.25, 0.50/0.50, 0.25/0.75) of PS/PMMA besides the pure components were used. The viscosity versus shear rate data coveting a shear-rate range of 20 to... 

The master rheogram for PS/POM blend shown in Fig. 4.41 is based on limited data [87] taken from a single source [91] at a fixed temperature of 210°C. A total of 20 data points were taken from the viscosity data that spanned a shear-rate range from 20 to 400/s for 3 compositions (0.9/0.1, 0.5/0.S, 0.2/0.8) of PS/ POM, in addition to the pure components (Table B3 of Appendix B). 

The fourth chapter begins with the origin and definition of MFI. It then develops the fundamentals of the unification technique based on a strong theoretical rationale. A demonstration of the use of this technique is followed by ample master rheograms of shear viscosity for a long list of common homopolymers, copolymers, blends, PVC formulations, and filled and recycled polymers. 

Table B3 Details of Data Used for Master Rheograms of Liquid-Crystalline Copolymer and Polymer Blends in Figs. 4.37-4.42...

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