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Selected Publication:
ZIPPER, P; JANOSI, A; WRENTSCHUR, E; ABUJA, PM.
SMALL-ANGLE AND WIDE-ANGLE X-RAY-SCATTERING INVESTIGATIONS OF INJECTION-MOLDED POLYPROPYLENE
J APPL CRYST. JOURNAL OF APPLIED CRYSTALLOGRAPHY; 24: 702-708.
Doi: 10.1107/S0021889891001917
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- Co-authors Med Uni Graz
- Abuja Peter Michael
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- Abstract:
- The layered structure in 2 mm thick discs injection moulded from industrial polypropylene (PP) was studied by scanning the cross section of the mouldings by means of small- and wide-angle X-ray scattering (SAXS and WAXS), using a Kratky collimation system for position-resolved quantitative scattering measurements in both angular domains. The registration of so-called scattering profiles of the mouldings and a texture analysis of the WAXS profiles were established as novel approaches for studying the cross-section architecture. The results of the investigations comprise statements on the preferential orientation and the local distribution of alpha- and beta-PP in different layers of the cross sections, on crystallite sizes and on the behaviour of individual layers in tensile tests.