Understanding Rheology of Thermoplastic Polymers
نویسندگان
چکیده
1 AAN013 shear rate behavior. For example, gauge variation can be caused by variable post-extrusion die swell, and warpage can occur from non-uniform relaxation during cooling of an improperly formulated injection molding compound. Also, by testing at low enough shear rates so that the measurements are in the melt’s linear viscoelastic region, the data can be linked directly to the polymer’s molecular structure such as molecular weight and molecular weight distributionfactors which control polymer process ability and product performance.
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