Magnetic and electrical properties of carbon nanotube/epoxy composites

被引：10

作者：

Pelech, Iwona ^{[1
]}

Pelech, Robert ^{[2
]}

Narkiewicz, Urszula ^{[1
]}

Kaczmarek, Agnieszka ^{[1
]}

Guskos, Niko ^{[3
]}

Zolnierkiewicz, Grzegorz ^{[3
]}

Typek, Janusz ^{[3
]}

Berczynski, Pawel ^{[3
]}

机构：

[1] West Pomeranian Univ Technol, Fac Technol & Chem Engn, Inst Chem & Environm Engn, Pulaskiego 10, PL-70322 Szczecin, Poland

[2] West Pomeranian Univ Technol, Fac Technol & Chem Engn, Inst Organ Chem Technol, Pulaskiego 10, PL-70322 Szczecin, Poland

[3] West Pomeranian Univ Technol, Fac Mech Engn & Mechatron, Dept Phys, Piastow 19, PL-70310 Szczecin, Poland

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2020年 / 254卷

关键词：

composites; nanostructures; metals; magnetic properties; electrical properties; POLYURETHANES; GROWTH; DISPERSION; RESONANCE; COBALT;

D O I：

10.1016/j.mseb.2020.114507

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composites based on epoxy resin filled with carbon nanotubes (obtained on metal catalysts: cobalt, iron and bimetallic iron - cobalt) were prepared. The influence of carbon nanotubes on the electrical conductivity and magnetic properties of the obtained composites was examined. Magnetic resonance spectra of the studied samples were dominated by a single, intense, broad and asymmetrical line, which is typical for ferromagnetic resonance (FMR) spectra of strongly interacting iron and cobalt nanoparticles forming agglomerates. The FMR spectra of the modified carbon nanotubes in epoxy were satisfactory fitted by using two components of the Lorentzian lineshape. Magnetization processes had a strong influence on all parameters of FMR spectra. The surface anisotropy is assumed to be the most important contribution to the overall magnetic anisotropy. Electric properties of all composites were improved and composite containing carbon nanotubes obtained on iron cobalt catalyst exhibited the highest value of electrical conductivity.

引用

页数：8

共 29 条

[1] Mechanical and electrical properties of a MWNT/epoxy composite [J].