Conductive polymer based nanocomposite membranes for biomedical applications
PBN-AR
Instytucja
Wydział Inżynierii Materiałowej i Ceramiki (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Inżynieria Biomateriałów = Engineering of Biomaterials (7pkt w roku publikacji)
ISSN
1429-7248
EISSN
Wydawca
Wydawnictwo Naukowe AKAPIT
DOI
Rok publikacji
2017
Numer zeszytu
139
Strony od-do
2--7
Numer tomu
20
Identyfikator DOI
Liczba arkuszy
0.42
Autorzy
(liczba autorów: 3)
Pozostali autorzy
+ 1
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
EN
carbon fillers
porous membranes
polyvinylidene difluoride (PVDF)
conductive
phase inversion
Streszczenia
Język
EN
Treść
The aim of this work was to examine composite membranes obtained by means of phase inversion from a synthetic stable polymer – polyvinylidene difluoride (PVDF). The piezoelectric polymer was modified with 0.5-1wt% addition of commercial carbon fillers: graphite oxide (GO, 1wt%), multiwalled carbon nanotubes (CNT, 1wt%) and functionalized nanotubes (CNT-COOH, 0.5wt%). The membranes were obtained by solidification of nanocomposite solutions in coagulation bath (CH3OH). The obtained series of materials differed in surface porosity (P), electric conductivity (σ) and surface free energy (SFE). It was proved that presence of carbon nanoadditive influenced microstructure of the membranes: the mean size of pores in the membrane rose in the following order: GO→CNT→CNT-COOH. The very same system depicted the influence of the filler on the membrane structure: the increase in membrane crystallinity (λ) and the β phase share (FT Raman). From all the examined nanocomposite systems, the PVDF modified with 0.5wt% CNT-COOH displayed the most advantageous electric properties. These nanocomposite membrane (PVDF/CNT-COOH) could be used as a low-voltage electrodes in biomedical application. Yet, taking into account the other physicochemical, mechanical and structural properties, the membranes modified with 1wt% CNT and 1wt% GO were also interesting.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:109076