Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts
A creeping squeeze flow apparatus [1 - 2] was modified with a Fizeau interferometer optical motion transducer and equipped with a high-temperature, high-vacuum enclosure. Long-term squeeze flow experiments were done on a broad-MW, 1 melt-flow index commercial HDPE at 190˚C, with runs covering about...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2004-02-01
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| Series: | Applied Rheology |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/arh-2004-0003 |
| _version_ | 1818739639525048320 |
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| author | Cua Edwin C. Shaw Montgomery T. |
| author_facet | Cua Edwin C. Shaw Montgomery T. |
| author_sort | Cua Edwin C. |
| collection | DOAJ |
| description | A creeping squeeze flow apparatus [1 - 2] was modified with a Fizeau interferometer optical motion transducer and equipped with a high-temperature, high-vacuum enclosure. Long-term squeeze flow experiments were done on a broad-MW, 1 melt-flow index commercial HDPE at 190˚C, with runs covering about a week. Over this period, no thermal degradation of the polymer was observed, and the geometry of the apparatus was stable. Low-shear-rate viscosities were measured within the maximum shear rates from 1.7 × 10−5 to 7.6 × 10−5 1/s (stress ~ 1.7 to 8 Pa), resulting in an two-decade expansion in the experimental window for this difficult-to-characterize HDPE resin with long relaxation times. |
| first_indexed | 2024-12-18T01:28:02Z |
| format | Article |
| id | doaj.art-21b6f794ade44af59fc06a73f09cae3a |
| institution | Directory Open Access Journal |
| issn | 1617-8106 |
| language | English |
| last_indexed | 2024-12-18T01:28:02Z |
| publishDate | 2004-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Applied Rheology |
| spelling | doaj.art-21b6f794ade44af59fc06a73f09cae3a2022-12-21T21:25:40ZengDe GruyterApplied Rheology1617-81062004-02-01141333910.1515/arh-2004-0003Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE MeltsCua Edwin C.0Shaw Montgomery T.1Polymer Program, Institute of Materials SciencesPolymer Program, Institute of Materials SciencesA creeping squeeze flow apparatus [1 - 2] was modified with a Fizeau interferometer optical motion transducer and equipped with a high-temperature, high-vacuum enclosure. Long-term squeeze flow experiments were done on a broad-MW, 1 melt-flow index commercial HDPE at 190˚C, with runs covering about a week. Over this period, no thermal degradation of the polymer was observed, and the geometry of the apparatus was stable. Low-shear-rate viscosities were measured within the maximum shear rates from 1.7 × 10−5 to 7.6 × 10−5 1/s (stress ~ 1.7 to 8 Pa), resulting in an two-decade expansion in the experimental window for this difficult-to-characterize HDPE resin with long relaxation times.https://doi.org/10.1515/arh-2004-0003squeeze flowfizeau interferometerhdpezero-sher-rate viscosity |
| spellingShingle | Cua Edwin C. Shaw Montgomery T. Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts Applied Rheology squeeze flow fizeau interferometer hdpe zero-sher-rate viscosity |
| title | Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts |
| title_full | Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts |
| title_fullStr | Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts |
| title_full_unstemmed | Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts |
| title_short | Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts |
| title_sort | creeping sphere plane squeeze flow to determine the zero shear rate viscosity of hdpe melts |
| topic | squeeze flow fizeau interferometer hdpe zero-sher-rate viscosity |
| url | https://doi.org/10.1515/arh-2004-0003 |
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