- Tytuł:
- Mobile NMR for Analysis of Polyethylene Pipes
- Autorzy:
-
Blümich, B.
Casanova, F.
Buda, A.
Kremer, K.
Wegener, T. - Powiązania:
- https://bibliotekanauki.pl/articles/2043383.pdf
- Data publikacji:
- 2005-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
81.05.Lg
82.35.Lr
76.60.-k - Opis:
- 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$\text{}^{®}$ (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.
- Źródło:
-
Acta Physica Polonica A; 2005, 108, 1; 13-23
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł