Extensional rheology of polymers and optical properties of blown polymer films /
alms and a novel lubricated squeezing rheometer for
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1998.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | alms and a novel lubricated squeezing rheometer for and no slip predictions. Since we know that the and yet poorly understood deformation. The reason for as the comparison to shear rheology. The consent Biaxial extensional flows are a commonly encountered phics. birefringence. These correlations held over a range of but not as closely, in constant stress testing. Comparison of the strain developing in the steady constant stress tests are concluded to be mechanical difficult to produce for rheological measurements. In films, the product of a major process with biaxial flows, are related to the mechanical properties of the followed in constant strain rate testing and followed, generating pure biaxial elongation is constructed and in nature. indicating that the lubricated plates are performing well. The consent lubrication is sufficient, the problem with the of perfect slip and no slip revealed similar results poly(ethylene) films did not describe the film sample poly(isobutylene) are tested in the lubricated poly(isobutylene) samples shows that Trouton's rule is precessing conditions. The correlations for pure produced from a poly(ethylene) blend. Comparison of properties of blown poly(ethylene) films demonstrate squeezing rheometer. Our results on the optical state region to theoretical predictions for the cases strain rate data follow the prediction for pure slip, strengths are strongly related to the film stress data fell in the region between the pure slip tested in constant strain rate and constant stress tests. Specifically, poly(ethylene) films are used in that the machine and transverse direction tear the optical testing and two molecular weights of the shear rheology to the biaxial rheology of the this is that controlled pure biaxial flows are this study, the optical properties of blown polymer |
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| Item Description: | "Major subject: Chemical Engineering". Vita. |
| Physical Description: | xi, 76 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references: pages 57-60. |