粉体の充填に関する研究(第6報)微粉体粒子の充填

概要

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The compaction behavior of powders in the centrifugal and vibrational fields was examined using calcium carbonate and sulfathiazole having different particle sizes. The apparent volume of the powder decreased with increasing acceleration of the bed. When the particle size was more than several μm, an approximately linear relation was observed on plotting the logarithm of the porosity effective for packing against logarithm of the average force acting upon a single particle. In the case of ultrafine powders, however, the values of porosity were found to be lower than those expected from the above relation, which may be due to the formation of agglomerates. The agglomerate number of these samples was estimated from the compaction data and also from the air permeation measurements.
公益社団法人日本薬学会の論文
1976-10-25