Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Using Current-Voltage Characteristics to Control the Structure of Contacts in Polyethylene Based Composites Modified by Multiwalled Carbon Nanotubes. / Moseenkov, S. I.; Zavorin, A. V.; Ishchenko, A. V. и др.
в: Journal of Structural Chemistry, Том 61, № 4, 01.04.2020, стр. 628-639.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Using Current-Voltage Characteristics to Control the Structure of Contacts in Polyethylene Based Composites Modified by Multiwalled Carbon Nanotubes
AU - Moseenkov, S. I.
AU - Zavorin, A. V.
AU - Ishchenko, A. V.
AU - Serkova, A. N.
AU - Selyutin, A. G.
AU - Kuznetsov, V. L.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - The conductivity of three types of composites prepared by mechanical melt mixing from polyethylene (PE) and multi-walled carbon nanotubes (MWCNTs) with an average diameter of 9.8 nm and an aspect ratio of ∼3000, 112, 36 is studied. The structure of these composites is investigated by optical and scanning electron microscopies and powder X-ray analysis. Cyclic measurements of current-voltage (I–V) characteristics and the use of a 3-point measurement scheme showed that the current density through the composite is nonlinearly increasing with increasing voltage or upon sequential measurements of I–V characteristics with the same voltage. The results of I–V measurements were used to determine concentration dependences of conductivity and their changes for each type of MWCNTs. It is shown that the percolation threshold determined from the third I–V measurement for MWCNTs in composites prepared by mechanical melt mixing decreases with decreasing aspect ratio of nanotubes from 3000 to 36.
AB - The conductivity of three types of composites prepared by mechanical melt mixing from polyethylene (PE) and multi-walled carbon nanotubes (MWCNTs) with an average diameter of 9.8 nm and an aspect ratio of ∼3000, 112, 36 is studied. The structure of these composites is investigated by optical and scanning electron microscopies and powder X-ray analysis. Cyclic measurements of current-voltage (I–V) characteristics and the use of a 3-point measurement scheme showed that the current density through the composite is nonlinearly increasing with increasing voltage or upon sequential measurements of I–V characteristics with the same voltage. The results of I–V measurements were used to determine concentration dependences of conductivity and their changes for each type of MWCNTs. It is shown that the percolation threshold determined from the third I–V measurement for MWCNTs in composites prepared by mechanical melt mixing decreases with decreasing aspect ratio of nanotubes from 3000 to 36.
KW - composites
KW - contacts between nanotubes
KW - current-voltage characteristics
KW - mechanical melt mixing
KW - multiwalled carbon nanotubes
KW - percolation
KW - ACTIVATION
KW - ELECTRICAL-CONDUCTIVITY
KW - POLYMER COMPOSITES
KW - IN-SITU
UR - http://www.scopus.com/inward/record.url?scp=85088626806&partnerID=8YFLogxK
U2 - 10.1134/S0022476620040174
DO - 10.1134/S0022476620040174
M3 - Article
AN - SCOPUS:85088626806
VL - 61
SP - 628
EP - 639
JO - Journal of Structural Chemistry
JF - Journal of Structural Chemistry
SN - 0022-4766
IS - 4
ER -
ID: 24831072