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Influence of BaTiO 3 submicrometric particles on the structure, morphology, and crystallization behavior of poly(vinylidene fluoride)
Author(s) -
Sánchez Freddy A.,
Redondo Marta,
GonzálezBenito Javier
Publication year - 2015
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.41497
Subject(s) - materials science , crystallization , nucleation , differential scanning calorimetry , scanning electron microscope , barium titanate , morphology (biology) , polymer , chemical engineering , composite material , composite number , copolymer , ceramic , chemistry , physics , genetics , organic chemistry , biology , engineering , thermodynamics
Real uniform dispersion of barium titanate, BaTiO 3 , submicrometric particles within Poly(vinylidene fluoride), PVDF, was achieved to understand induced structure, morphology, and crystallization process of the polymer. Composites with uniform dispersions of BaTiO 3 particles within PVDF were accomplished for the first time, blending the polymer with particles by high energy ball milling, HEBM. Different compositions in PVDF/BaTiO 3 composite were considered (0, 1, 5, and 10 weight percent of particles). Morphology and structure were studied by scanning electron microscopy, SEM, and X‐ray diffraction, XRD, respectively. From dynamic experiments by differential scanning calorimetry, DSC, thermal transitions were determined and melting and crystallization processes were studied. To understand the main mechanism by which specific morphologies can be obtained a deep kinetic analysis of the PVDF crystallization process was carried out. Cooling rate and BaTiO 3 content did not provide important variations in the PVDF crystalline structure and morphology; however, the presence of BaTiO 3 particles seemed to favor an athermal nucleation, leading to higher fraction of crystals in shorter times. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 41497.