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Investigations of the layered structure of injection‐molded polypropylene discs and of its behavior in tensile tests. Dedicated to Prof. H. Janeschitz‐Kriegl on the occasion of his 65th birthday
Author(s) -
Fleischmann E.,
Zipper P.,
Jánosi A.,
Geymayer W.,
Koppelmann J.,
Schurz J.
Publication year - 1989
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760291212
Subject(s) - materials science , ultimate tensile strength , polypropylene , birefringence , small angle x ray scattering , composite material , tensile testing , scattering , optics , physics
The tensile test behavior of specimens taken from polypropylene discs injection‐molded with and without packing, respectively, was studied. The initial state of the different layers of the specimens and their stressed state, respectively, are characterized by small‐angle X‐ray scattering (SAXS), wide‐angle X‐ray scattering (WAXS), measurements of birefringence and of mechanical properties, and by light‐microscopic investigations. The results off these experiments altogether give a detailed representation of the behavior of the different layers of the specimens in the tensile test.