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Wet type fine grinding modulo of the organicity solid material and the record body null which applied the water dispersion liquid of the organicity solid material particulate
Wet type fine grinding modulo of the organicity solid material and the record body null which applied the water dispersion liquid of the organicity solid material particulate
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机译:有机固体材料的湿式微粉碎模和施加有机固体材料颗粒的水分散液的记录体无效
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摘要
PURPOSE:To conduct a fine grinding by a sand mill with an improved efficiency by incorporating a specific polyvinyl alcohol and at least one of methyl celluloses in a water dispersion of an organic solid substance. CONSTITUTION:In the wet fine grinding of a water dispersion of an organic solid substance by a sand mill, a polyvinyl alcohol which forms a 0.1% water solution at 20 deg.C having a surface tension of 63dyne/cm or less and has a polymerization degree of 500 or more and at least one of methyl celluloses are incorporated in said organic solid substance water dispersion. The specific polyvinyl alcohol is preferably added in the range of 0.2 - 10pts.wt. per 100pts.wt. of the organic solid substance, and especially the addition amount ranging 1.0 - 5pts.wt. is preferable. On the other hand, the methyl celluloses to be used in combination is desirably added in the range of 0.05 - 50pts.wt. per 1pts.wt. of the specific polyvinyl alcohol, and particularly the addition amount ranging 0.5 - 5pts.wt. is suitable.
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