合成ケイ酸アルミン酸マグネシウムの水熱処理による物性変化

概要

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In view of the fact that, as evidenced by the results of the antacid activity test, the artificial magnesium aluminum silicate prepared by hydrothermal treating has failed to equal its co-precipitated substance in neutralizing velocity and in activation energy of reaction with 0.1N-HCl, it is the aim of the present paper to investigate the changes in physicochemical properties of artificial magnesium aluminum silicate prepared by hydrothermal treating, such as the durability of antacids, bonding state and surface chemistry. As the result of differential radial distribution analysis shows there is but small variation from the specimens used in the hydrothermal treating to the co-precipited specimens, and this variation is not considered to have much to do with durability. The authors have paid attention to the physicochemical properties of the surface area and of the amount of oil absorption in order to examine main factors of indicating durability at hydrothermal treating samples. It is concluded that the durability is influenced by the weak bonding state, and the surface properties mainly by such as the surface area, the hydrophilic property and the hydration structure.
社団法人日本材料学会の論文
1970-06-15