| Download | - View author's version: Study of polypropylene morphology obtained from blown and cast film processes: initial morphology requirements for making membranes porous by stretching (PDF, 17.9 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1177/8756087905057085 |
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| Author | Search for: Sadeghi, F.; Search for: Ajji, A.1; Search for: Carreau, P. J. |
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| Affiliation | - National Research Council of Canada. NRC Industrial Materials Institute
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| Format | Text, Article |
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| Subject | Polypropylene; orientation; porous membrane; stretching |
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| Abstract | Four different polypropylene (PP) resins are extruded using the tubular blown and cast film processes. The resin morphology is observed by SEM and the effect of extrusion processing variables on the morphology is investigated. Melt rheological experiments are also carried out to characterize the polymer melts. It has been found that the molecular weight distribution and the chain structure as well as the processing conditions have important effects on the morphology. Efforts have been focused on developing a row-nucleated morphology from PPs through the control of processing conditions. The possibility of generating a porous membrane from the initial row-nucleated morphology using a stretching technique is evaluated. It has been found that the initial lamellae arrangement of the precursor films and the stretching conditions play a significant role in obtaining a porous structure. |
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| Publication date | 2005-07-01 |
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| Publisher | Sage |
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| In | |
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| Language | English |
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| Peer reviewed | No |
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| NRC number | NRCC 54306 |
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| NPARC number | 18426151 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 4220542b-5373-4fbe-b5f1-5b18bebf2c74 |
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| Record created | 2011-08-16 |
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| Record modified | 2020-04-07 |
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