ISSN:
0021-8995
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
,
Physik
Notizen:
A method is described for calculating crystallinity indices and crystalline orientation functions for the α and γ components of the crystalline phase of nylon 6 filaments using wide-angle x-ray diffraction (WAXS) analysis. The method is shown to be applicable to a wide range of filament samples (“conventional” as-spun, fast spun, drawn, and annealed) even when only a single broad diffraction maximum is observable from the WAXS photograph. The component indices can be used to illustrate differences present in the filament microstructure which would be unobservable if a total crystallinity index, such as that determined by density, were determined alone. For example, the initially mixed α-γ structure is retained in low-temperature drawing (75-150°C) of nylon 6 fiber, but the predominantly α form is produced at higher draw temperatures.
Zusätzliches Material:
6 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/app.1979.070230615
Permalink
