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| Rheological Properties of Polyvinylacetate: Storage-Loss Modulus and Relaxation Stress |
Mahmoud Abdel-Halim Abdel-Goad
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Abstract:
The dynamic viscoelastic properties of Polyvinylacetate with molecular weight 83000g/mol (PVA 83K ) were determined by using a Rheometer operated in the dynamic mode and 8 mm parallel plate over a wide range of temperature as a function of frequency. The measurements were performed successively in the parallel plate geometry using 8 mm plate instead of 25 mm. The glass plateau regime is clearly observed because we could measure PVA 83K sample successively under its glass temperature. The storage and loss modulus and the relaxation stress are performed.
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