Open AccessПолимерные пьезоэлементы на основе пористых пленок поливинилиденфторида и контактных электродных слоев полианилина
Author(s) -
Г.К. Ельяшевич,
И.С. Курындин,
Е.Ю. Розова,
Н.Н. Сапрыкина
Publication year - 2020
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2020.03.49018.623
Subject(s) - polyaniline , materials science , composite material , polyvinylidene fluoride , porosity , scanning electron microscope , polymerization , electrode , layer (electronics) , chemical engineering , polymer , chemistry , engineering
The preparation method to obtain the new hybrid piezoactive systems by successive layer-by-layer aniline polymerization in situ on the porous polyvinylidene fluoride films formed in the process based on melt extrusion has been elaborated. It is established by IR spectroscopy that the conducting form of polyaniline (emerald salt) is synthesized. It is proved that the samples containing two layers of polyaniline are characterized by higher electroconductivity than the single-layer ones, and its value increases with the orientation degree of the support. It is confirmed by electron microscopy that this effect is due to the higher homogeneity and ordering of the conducting layer in more oriented samples. It is shown that hybrid samples have a higher breaking strength, elastic modulus and break elongation than support. Electro- and piezoactive properties of the hybrid systems were studied by cyclic voltampermetry and piezomodulus testing using polyaniline layers as contact electrode materials. Piezoconstants of the samples were measured depending on the direction of loading.