粉体工学会誌
Online ISSN : 1883-7239
Print ISSN : 0386-6157
ISSN-L : 0386-6157
論文
湿潤粉体における造粒体中の水分布とせん断特性との関係解析
草野 巧巳谷 昌明蛭田 修中村 浩
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2018 年 55 巻 11 号 p. 588-593

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Wet granules are applied for various fields due to their high workability and cost performance. However, it is difficult to observe the water distribution of wet granules directly because of the extremely small amount of water. In this study, the water distribution of wet granules was investigated by confocal laser microscope and quantitatively analyzed by using autocorrelation function. Furthermore, the correlation length of wet granules estimated from autocorrelation function was compared with their shear properties. Consequently, it was elucidated that angle of internal friction of wet granules decreased with increasing water volume between particles. These results indicated that water of wet granules works as drag reduction agent under shear conditions.

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