Terahertz Dielectric Properties of Multiwalled Carbon Nanotube/Polyethylene Composites | Sciact - CRIS-system of Boreskov Institute of Catalysis

Terahertz Dielectric Properties of Multiwalled Carbon Nanotube/Polyethylene Composites Full article

Journal

Materials Research Express
, E-ISSN: 2053-1591

Output data

Year: 2017, Volume: 4, Number: 10, Article number : 106201, Pages count : 8 DOI: 10.1088/2053-1591/aa8f06

Tags

composite, effective medium approximation, multiwall carbon nanotubes, Terahertz time-domain spectroscopy

Authors

Dorozhkin K V ¹ , Dunaevsky G E ¹ , Sarkisov S Yu ² , Suslyaev V I ¹ , Tolbanov O P ³ , Zhuravlev V A ¹ , Sarkisov Yu S ³ , Kuznetsov V L ⁴ , Moseenkov S I ⁴ , Semikolenova N V ⁴ , Zakharov V A ⁴ , Atuchin V V ^5,6

Affiliations

1	Laboratory for Terahertz Research, Tomsk State University, Tomsk 634050, Russia
2	Functional Electronics Laboratory, Tomsk State University, Tomsk 634050, Russia
3	Department of Chemistry, Tomsk State University of Architecture and Building, Tomsk 634003, Russia
4	Laboratory of Nanostructured Carbon Materials, Laboratory of Catalytic Polymerization, Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
5	Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia
6	Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk 630090, Russia

Funding (2)

1	Federal Agency for Scientific Organizations	0303-2016-0009
2	The Ministry of Education and Science of the Russian Federation	11.2247.2017/ПЧ

The terahertz dielectric properties of multiwalled carbon nanotube/polyethylene (MWCNT/PE) composites prepared in different ways and with various contents of carbon nanotubes have been measured by terahertz time-domain spectroscopy. The experimental dielectric susceptibilities were modeled within effective medium approximation. The MWCNTs with average diameter of 9 nm produced by ethylene decomposition over FeCo catalyst were used in the experiments. Two types of composites were prepared by various mechanical mixing of MWCNT and polyethylene powders. The other two types of composites were fabricated employing ethylene polymerization on the MWCNTs before mechanical mixing with polyethylene powder. The samples with MWCNT concentration of 0.1, 0.5, 1 and 4 wt. % were prepared for each composite type. The measured dielectric susceptibilities were higher for composites made of nanotubes with preliminary polymerization of ethylene as compared to the composites produced by just mechanical mixing at equal concentrations of MWCNTs. It was also found that the dielectric susceptibilities of the MWCNT/PE composites can be satisfactory described within Maxwell–Garnett effective medium approximation at sufficient levels (>0.5–1 wt. %) of MWCNT contents. The obtained results confirm the possibility to produce MWCNT/PE composite materials with desired dielectric properties in terahertz range.

Dorozhkin K.V. , Dunaevsky G.E. , Sarkisov S.Y. , Suslyaev V.I. , Tolbanov O.P. , Zhuravlev V.A. , Sarkisov Y.S. , Kuznetsov V.L. , Moseenkov S.I. , Semikolenova N.V. , Zakharov V.A. , Atuchin V.V.
Terahertz Dielectric Properties of Multiwalled Carbon Nanotube/Polyethylene Composites
Materials Research Express. 2017. V.4. N10. 106201 :1-8. DOI: 10.1088/2053-1591/aa8f06 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Aug 2, 2017
Accepted:	Sep 26, 2017
Published online:	Sep 26, 2017
Published print:	Oct 16, 2017

Web of science:	WOS:000413094300001
Scopus:	2-s2.0-85042860935
Elibrary:	35509260
Chemical Abstracts:	2018:831703
OpenAlex:	W2757599894

DB	Citing
Web of science	23
Scopus	23
Elibrary	22
OpenAlex	23