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Extensional viscosity

Extensional viscosity (also known as elongational viscosity) is a viscosity coefficient when the applied stress is extensional stress. It is often used for characterizing polymer solutions. Extensional viscosity can be measured using rheometers that apply extensional stress. Acoustic rheometer is one example of such devices.

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Extensional viscosity

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Avg. degree1.75
Density0.25
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viscosity extensional stress ratio known also elongational coefficient applied often used characterizing polymer solutions measured using rheometers apply acoustic rheometer

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