Effect of Al/AlN Deagglomeration on the Formation of a Modifying Porous Coating on Polymeric Fibres
A. S. LOZHKOMOEV, O. V. BAKINA, E. A. GLAZKOVA, A. N. IVANOV, N. V. SVAROVSKAYA, 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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