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Effect of Granule Size on the Structure of Nanoporous Ceramics Based on Organosilicon Polymer
Authors:A. V. Belyakov  N. N. Fomin  D. Koch
Affiliation:(1) D. I. Mendeleev Russian Chemical Engineering University,, Moscow,, Russia;(2) Bremen University,, Bremen,, Germany.
Abstract:
Porosity in nanoporous ceramics produced by pyrolysis of organosilicon polymer at a temperature of 600°C was investigated using the BET method. Samples were molded from fractionated granules produced by single or double milling in a planetary mill of a polymer previously solidified and heat-treated at 200°C. Specific surface area depending on nanopores sharply decreases after the granules reach a size over 250 mgrm in single milling and over 1000 mgrm in double milling. An explanation for these facts is given in the context of synergism.
Keywords:
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