Terahertz Dielectric Properties of Multiwalled Carbon Nanotube/Polyethylene Composites | Sciact - CRIS-система Института катализа

Terahertz Dielectric Properties of Multiwalled Carbon Nanotube/Polyethylene Composites Научная публикация

Журнал

Materials Research Express
, E-ISSN: 2053-1591

Вых. Данные

Год: 2017, Том: 4, Номер: 10, Номер статьи : 106201, Страниц : 8 DOI: 10.1088/2053-1591/aa8f06

Ключевые слова

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

Авторы

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

Организации

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

Информация о финансировании (2)

1	Федеральное агентство научных организаций России	0303-2016-0009
2	Министерство образования и науки Российской Федерации	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 CAPlus OpenAlex

Поступила в редакцию:	2 авг. 2017 г.
Принята к публикации:	26 сент. 2017 г.
Опубликована online:	26 сент. 2017 г.
Опубликована в печати:	16 окт. 2017 г.

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

БД	Цитирований
Web of science	23
Scopus	22
РИНЦ	22
OpenAlex	21