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POLYMER RHEOLOGY
Polymer Viscoelasticity
Viscoelastic techniques characterize the relative importance of elastic (solid-like) and viscous
(liquid-like) response components in describing polymer behavior. The deformation response of polymers
to applied stress or load is defined, and the architecture of the polymer chains can be determined.
Applications
- Molecular weight/branching
- Cure kinetics
- Energy dissipation/damping
- Blend compatibility
- Gelation and fusion of plastisols
- Stability
- Phase changes
- Shrinkage/dimensional stability
- Stress growth and relaxation
- Melt viscosity
- Dynamic mechanical properties (Tg, Tm, structure, etc.)
- Service life prediction (Time-Temperature Super-position)
- Compressive Creap/Creap Recovery
Sample
20 grams or more
Polymer Viscosity
Knowledge of polymer viscosity can be critical to understanding flow of melts and solutions in processing equipment and for
the proper design of this equipment.
Applications
- Melt viscosity
- Thermal stability
- Die swell
- Lubrication/slip analysis
- Polymer fusion, heat/shear history
- Solution viscosity
- Rheometry (data for die design)
- Powder compaction
- Processing characteristics
Sample
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