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Melt spinning of PVDF fibers with enhanced β phase structure
Author(s) -
Guo Zengwei,
Nilsson Erik,
Rigdahl Mikael,
Hagström Bengt
Publication year - 2013
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.39484
Subject(s) - crystallinity , materials science , spinning , polyvinylidene fluoride , phase (matter) , fourier transform infrared spectroscopy , composite material , crystal (programming language) , crystal structure , melt spinning , carbon nanotube , polymer , chemical engineering , chemistry , crystallography , organic chemistry , computer science , engineering , programming language
Polyvinylidene fluoride (PVDF) fibers with a high amount of β phase crystal structure were prepared by melt spinning. With this technique, the cold drawing process is critical and efficient when aiming for a high amount of β phase. During the cold drawing process, more than 80% of the originally formed α phase crystal structure was converted into the β phase structure. In addition, the incorporation of 0.01 wt % of amino‐modified double wall carbon nanotube (NH 2 ‐DWCNT) could further enhance the β phase content in the PVDF fibers. FTIR and DSC studies showed that the addition of NH 2 ‐DWCNT to PVDF fibers could increase both the total crystallinity and β phase fraction in PVDF. The addition of nanoclay was found to be less efficient in this respect. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2603–2609, 2013