Poster presentation
209
PREPARATION OF CELLULOSE NANOFIBERS USING
ELECTROSPINNING
A.A. Atakhanov, N.Sh. Ashurov, S.Sh. Rashidova
Institute of Polymer Chemistry and Physics, Uzbekistan, Tashkent
Cellulose fibres and nanofibres have gained interest because of the high strength and
firmness, biodegradability and renewability [1]. The manufactures of polymer
nanofibres via electrospinning technique have been perceived as a persuasive system for
producing fibres with submicron diameters by electrostatic forces [2].
In this work, the possibility of preparing cellulose nanofibres using electrospinning
method was investigated.
The condition of electrospinning was following: the distance between the needle tip
and collector was set to 14 cm. The collector used was aluminum foil with the width of
21 cm. The inner diameter of the needle was 0.353 mm. Injection rate of the spinning
solution was 0.03-90 mkl/min. The collecting time is 120 min, voltage 0.5-30 kV. After
electrospinning, the obtained cellulose fibres were peeled from the collector and
vacuum-dried at 60
0
C for 1 h. Electrospinning system (NanoNC eS-robots, South
Korea) was used for the fabrication of nanofibers. The relative humidity and
temperature during the spinning process was 60% and 25
°
C, respectively.
The optic microscopy method showed that nanofibres are formed with different
diameters (nano and micro sizes). Atomic force microscopy studies have also confirmed
the formation of nanofibers with diameters ranging from nanometers to micrometers.
IR spectroscopic studies of cellulose nanofibers showed that nanofibres are
characterized by spectra typical of cellulose, however, new absorption bands are
observed.
Fig.1. FTIR spectra and X-Ray diffractograms of cellulose (
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