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. … A Helpful Guide to Processing High Viscosity Resins The term “viscosity” refers to the thickness or flow-ability of a liquid. Polycarbonate – High Viscosity This specification covers the properties of a transparent or pigmented, injection molding grade, pellet form, polycarbonate. Polycarbonate or "PC" is a highly useful engineering thermoplastic. Waste polycarbonate will degrade at high temperatures to form solid, liquid and … Flow Properties of Polymers Time-independent Fluids. It could be noted form Fig. This means their apparent viscosity (η) 1 depends on the applied shear rate and increases rapidly with increasing molecular weight (number of repeat units). I did a search for "table of viscosity values" and this was the second link: Viscosity Values Chart *Centipoise = centistokes x specific gravity where … It has desirable physical properties such as transparency, high toughness, and very good heat resistance. The raw material of polycarbonate … High-viscosity Epoxy Resins / Laminating Resins Many thicker and therefore highly viscous or medium viscous epoxy resins are reminiscent of honey … Viscosity is not changing much in this section; it is a flat line, something like the way water flows. 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. It also has a high … In addition to measuring thickness, viscosity measures resistance to motion. For example, a substance with a thick viscosity resists movement while a low viscosity … An example of a high viscosity liquid is syrup. Polymer solutions, dispersions, and melts are usually non-Newtonian liquids. Thus, the viscosity … In other words, the plastic likes to go fast; it has lower viscosity… 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. Polycarbonate Phenyl salicylate 2,2-dihydroxybenzophenone Thermal degradation. For process stability, the plastic likes the flat section of the curve, as shown in the center to right side of graph. What is viscosity in a plastic? Makrolon® polycarbonate is extremely robust, lightweight with glass-like transparency and is impact resistant – even at low temperatures. ... 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