Effect of Al/AlN Deagglomeration on the Formation of a Modifying Porous Coating on Polymeric Fibres
A. S. LOZHKOMOEV,В В O. V. BAKINA,В В E. A. GLAZKOVA,В В A. N. IVANOV,В В N. V. SVAROVSKAYA,В В A. N. SEROVA and M. I. LERNER
Institute of Strength Physics and Material Science, Siberian Branch of the Russian Academy of Sciences, Pr. Akademicheskiy 2/4, Tomsk 634021 (Russia)
E-mail: alekc@sibmail.com
Keywords: deagglomeration, nanopowder, modification, porous coating, adsorption
Pages: 303–308
Abstract
Using dynamic light scattering technique, studying the destruction process were performed for the agglomerates of electro-explosion aluminium nitride nanopowder composition Al/AlN under ultrasonic dispersing in isopropyl alcohol. The average size of the initial agglomerates amounts to ~5.4 μm. It has been demonstrated that under the conditions of dispersing under investigation the initial agglomerates are disintegrated to produce a particle size of about 0.5 μm. No destruction resulting in primary particles of 40–80 nm in size is observed. It is demonstrated that the deagglomeration exerts a considerable effect upon the chemical reactivity of the aluminium nitride nanopowder composition in the reaction with water. It has been established that the size of the precursor particles exerts a substantial effect on the formation of a modifying nanostructured porous coating on polymeric fibres and on adsorption properties of the fibrous sorbent based the mentioned coating.
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