円板状炭酸カルシウムの合成(第2報) : エチレンジアミン系化合物の添加効果と円板状炭酸カルシウムの生成過程について

概要

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The addition of straight chain polyamines such as triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine and 1, 4-diaminobutane in the course of carbonation of basic calcium carbonate promoted the formation of disk-like vaterite of 1-1.5μm in diameter and 0.1-0.2μm in thickness. On the other hand, cyclic polyamines such as piperazine, 1-(2-aminoethyl)piperazine and 1, 4-diazabicyclo[2, 2, 2]octane, and branching polyamine such as 2, 2-dimethylpropylene, promoted the formation of spindle-like calcite. Only polyamine in which N-N distance is 0.3nm or its integral multiple, promoted formation of the disk-like calcium carbonate. Hexagonal of basic calcium carbonate once dissolved in aquarious media and the disk-like calcium carbonate formed.
社団法人日本セラミックス協会の論文
1997-10-01