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Glass beads were coated in a fluidized bed by atomizing a suspension of nylon or silica fine powder. Polyvinyl alcohol (PVA) was used as a binder. The influences of the weight ratio of fine powder to binder in the suspension and index R, which quantitatively evaluates the drying condition in a fluidized bed on the coating efficiency, on the agglomeration among the core particles and on the coated...
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