This means their apparent viscosity (η) 1 depends on the applied shear rate and increases rapidly with increasing molecular weight (number of repeat units). Viscosity is the resistance to flow that the plastic faces when it is melted, ie if the plastic is too viscous it has difficulty draining through the nozzle of the injector or die of the extruder, as opposed to a plastic of low viscosity that will drain easily. Figure 2 shows the viscosity curves of PC/LDPE (50/50) blend at various temperature and shear rates. Low viscosity refers to substances that are thin, such as water, while high viscosity substances are thick. It could be noted form Fig. I did a search for "table of viscosity values" and this was the second link: Viscosity Values Chart *Centipoise = centistokes x specific gravity where … The raw material of polycarbonate … An example of a high viscosity liquid is syrup. Polycarbonate Phenyl salicylate 2,2-dihydroxybenzophenone Thermal degradation. Polymer solutions, dispersions, and melts are usually non-Newtonian liquids. Waste polycarbonate will degrade at high temperatures to form solid, liquid and … What is viscosity in a plastic? In other words, the plastic likes to go fast; it has lower viscosity… A Helpful Guide to Processing High Viscosity Resins The term “viscosity” refers to the thickness or flow-ability of a liquid. 2, that the melt viscosity of the blend decreases with increasing shear rate at the various temperatures; this behavior confirms the last finding about the pseudo plastic … ... Basf's famous high … Flow Properties of Polymers Time-independent Fluids. Viscosity numbers range from one to millions of centipoise(cps), When it comes to polyurethanes and epoxies, keep in mind that temperature can have a major impact on a resin’s viscosity. For process stability, the plastic likes the flat section of the curve, as shown in the center to right side of graph. It has desirable physical properties such as transparency, high toughness, and very good heat resistance. Polycarbonate or "PC" is a highly useful engineering thermoplastic. Viscosity is not changing much in this section; it is a flat line, something like the way water flows. Makrolon® polycarbonate is extremely robust, lightweight with glass-like transparency and is impact resistant – even at low temperatures. Polycarbonate – High Viscosity This specification covers the properties of a transparent or pigmented, injection molding grade, pellet form, polycarbonate. 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