Premium
Structure development in melt spinning poly(vinylidene fluoride) fibers and tapes
Author(s) -
Wang Yimin,
Cakmak Mukerrem,
White James L.
Publication year - 1985
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/app.1985.070300625
Subject(s) - materials science , birefringence , differential scanning calorimetry , composite material , melt spinning , stress (linguistics) , spinning , small angle x ray scattering , diffraction , synthetic fiber , ultimate tensile strength , superstructure , scattering , fiber , optics , thermodynamics , linguistics , philosophy , physics
A series of poly(vinylidene fluoride)s of varying molecular weight have been melt spun to form fibers and tapes. These have been characterized with wide angle X‐ray diffraction (WAXD), differential scanning calorimetry (DSC), birefringence, and small angle light scattering (SALS). WAXD and DSC have detected both the α and β crystal structures in melt spun fibers with the relative amount of β increasing with drawdown stress. WAXD and birefringence have been used to detect orientation in the fibers. Hermans–Stein orientation factors have been computed for the α‐phase as a function of drawdown stress. Superstructure has been investigated using SALS. The mechanical properties of fibers have been determined with a tensile testing machine and correlated with orientation and spinline stress.