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Fibrillation behavior of oriented tapes of polyethylene and its blends. IV
Author(s) -
Mahajan S. J.,
Deopura B. L.,
Wang Yimin
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960606)60:10<1551::aid-app5>3.0.co;2-i
Subject(s) - materials science , crystallinity , composite material , toughness , void (composites) , shearing (physics) , polyethylene , amorphous solid , organic chemistry , chemistry
This article reports a critical appraisal of the factors affecting fibrillation behavior (axial splitting tendency) of uniaxially oriented tapes prepared from high‐density polyethylene and its blends. The drawn tapes were characterized by combined tension–twist fibrillation test, a new test proposed for this work. In addition, the drawn tapes were also characterized for microstructural details such as amorphous phase orientation, degree of crystallinity, void characteristics, and fracture surface morphology. It was found that an increase in amorphous phase orientation and degree of crystallinity systematically decreases the fi‐brillation strength and fibrillation toughness of tapes. General structural models to explain this phenomenon via microcrack formation, interfibrillar shearing process, and failure are proposed. © 1996 John Wiley & Sons, Inc.