Universität zu Köln

Syugaev, Alexander V., Maratkanova, Alena N., Lomayeva, Svetlana F., Shakov, Anatoly A., Petrov, Dmitry A., Bobrovskii, Stanislav Yu., Senkovskiy, Boris V. ORCID: 0000-0003-1443-6780 and Rozanov, Konstantin N. (2018). Chemical modification of Fe powders under surfactant-assisted ball milling in polydiene solutions. Colloid Surf. A-Physicochem. Eng. Asp., 540. AMSTERDAM: ELSEVIER. ISSN 1873-4359

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Abstract

Composite materials are of great importance for both science and technology. In this work, the high-energy ball milling of carbonyl iron in the presence of polydienes of various structures (cis-polybutadiene, cis- and transpolyisoprene) and surfactants (perfluorononanoic and stearic acid) is used to chemically modify the bulk and surface of iron particles. A comprehensive study of the particles was performed with the use of various experimental techniques. Mechanochemically activated iron surface favors the processes of decomposition and transformation of organic molecules that make up the milling medium, resulting in the accumulation of carbides in the particles bulk and the formation of modified organic layer on the surface. The composition and thickness of the modified layer as well as the arrangement of organic molecules in it was shown to be sensitive to variations in the chemical structure of the initial diene polymer and the type of surfactant added. The as-grown layers inhibit corrosive destruction of the resulting particles. Platelet-shaped particles prepared by surfactant-assisted ball milling can be used as fillers for magnetodielectric composites with high permittivity and permeability values.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Syugaev, Alexander V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Maratkanova, Alena N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lomayeva, Svetlana F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shakov, Anatoly A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Petrov, Dmitry A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bobrovskii, Stanislav Yu. UNSPECIFIED UNSPECIFIED UNSPECIFIED Senkovskiy, Boris V. UNSPECIFIED orcid.org/0000-0003-1443-6780 UNSPECIFIED Rozanov, Konstantin N. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-193001
DOI:	10.1016/j.colsurfa.2017.12.063
Journal or Publication Title:	Colloid Surf. A-Physicochem. Eng. Asp.
Volume:	540
Date:	2018
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1873-4359
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics II
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language X-RAY-ABSORPTION; THIN-FILMS; MICROWAVE PROPERTIES; IRON PARTICLES; ORGANIC MEDIA; INNER-SHELL; PHOTOELECTRON-SPECTROSCOPY; OXIDATION-STATE; SPECTRA; NEXAFS Multiple languages Chemistry, Physical Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/19300