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Development of orientation and mechanical properties of extrusion cast polyamide 11 films in biaxial stretching process
Author(s) -
Rhee Sangkeun,
White James L.
Publication year - 2002
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.10999
Subject(s) - materials science , polyamide , birefringence , composite material , ultimate tensile strength , extrusion , elongation , planarity testing , phase (matter) , diffraction , pole figure , orientation (vector space) , crystallography , optics , microstructure , geometry , chemistry , physics , organic chemistry , mathematics
The development of orientation of extrusion cast polyamide 11 films in the biaxial stretching process was studied with birefringence and wide angle X‐ray diffraction (WAXD) pole figures. White‐Spruiell biaxial orientation factors of the crystalline phase were calculated with the pole figure data. Both biaxially stretched films were developed. Planarity of hydrogen bonding planes with respect to the film surface was observed from WAXD pole figures. Mechanical properties of the films were studied. Tensile strength and elongation at break were successfully correlated with the out‐of‐plane birefringences.