Volume-resolved nanostructure survey of a polymer part by means of SAXS microtomography

被引：29
作者：
Stribeck, Norbert
Camarillo, Armando Almendarez
Noechel, Ulrich
Schroer, Christian
Kuhlmann, Marion
Roth, Stephan V.
Gehrke, Rainer
Bayer, Ruediger K.
机构：
[1] Univ Hamburg, Inst Tech & Makromol Chem, D-20146 Hamburg, Germany
[2] DESY, HASYLAB, D-22603 Hamburg, Germany
[3] Univ Gesamthsch Kassel, Inst Werkstofftech, D-34109 Kassel, Germany
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2006年 / 207卷 / 13期
关键词：
fibers; injection molding; microstructure; microtomography (micro-CT); small-angle X-ray scattering (SAXS);
D O I：
10.1002/macp.200600147
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Small-angle X-ray scattering (SAXS) microtomography (micro-CT) resolves structure variation in an anisotropic polyethylene (PE) gradient material with fiber symmetry. 4 900 reconstructed SAXS patterns describe the nanostructure as a function of volume element position the scanned fiber cross-section. Reconstruction errors Were observed. Their first-order effect was eliminated by transformation of the SAXS into a multidimensional chord analysis, shows oriented,distribution function (CDF). Its lamellae stacks in a shell-layer and extended chains in the central core of the fiber. We document zones of uni- and bimodal structure, variation of long periods, stack heights, and lateral domain extension.
引用
收藏
页码：1139 / 1149
页数：11
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