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Structure‐properties relationships in biaxially oriented polypropylene films
Author(s) -
De Vries Albert J.
Publication year - 1983
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.760230502
Subject(s) - materials science , crystallinity , polypropylene , tenacity (mineralogy) , composite material , characterization (materials science) , phase (matter) , nanotechnology , chemistry , organic chemistry
A series of biaxially oriented polypropylene films has been extensively investigated with respect to structural characterization and with regard to various end‐use properties. The relationships between properties and structural characteristics such as crystallinity content and molecular orientation in crystalline and non‐crystalline phases were compared with similar relationships in uniaxially oriented polypropylene films. Notable differences between uni‐ and biaxially oriented films, in particular with regard to non‐linear mechanical behavior (tenacity, impact strength, tear strength) could be explained, at least partly, in terms of structural characteristics (molecular orientation and mobility) related to the non‐crystalline phase.