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2005 | 108 | 1 | 13-23
Article title

Mobile NMR for Analysis of Polyethylene Pipes

Content
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Languages of publication
EN
Abstracts
EN
NMR relaxometry is a suitable tool to determine the morphology of semi-crystalline polymers by its ability to discriminate between rigid, mostly crystalline and soft, usually amorphous material. The NMR-MOUSE^® (nuclear magnetic resonance mobile universal surface explorer) was explored in this work to supply morphological data of poly(ethylene) pipes nondestructively. PE-100 pipes were investigated in the new state, after squeezing them flat, and after annealing well below the glass temperature. Furthermore, the change in morphology induced by a pressure load from the inside and a point load from the outside was investigated as a function of depth, and the morphology change across a welding line was imaged. A shear-band was detected by destructive high-field NMR imaging in an area of severe deformation of a pipe, where an anomalous depths profile was observed by the NMR-MOUSE. These results demonstrate that the NMR-MOUSE is a suitable tool for non-destructive state assessment of polymer pipes on the basis of laboratory reference data.
Keywords
EN
Contributors
author
  • Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52056 Aachen, Germany
author
  • Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52056 Aachen, Germany
author
  • Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52056 Aachen, Germany
author
  • Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52056 Aachen, Germany
author
  • Institut für Rohrleitungsbau, FH Oldenburg, Industriestr. 11, 26121 Oldenburg, Germany
References
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  • 7. V.M. Litvinov, M. Soliman, Polymer, 46, 3077, 2005
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  • 9. B. Blumich, F. Casanova, A. Buda, K. Kremer, T. Wegener, 3R International, xxx, xxx, 2005
  • 10. G. Strobl, The Physics of Polymers, Springer, Berlin 1996
  • 11. B. Blumich, NMR Imaging of Materials, Clarendon Press, Oxford 2000
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv108n102kz
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