| 羟基丁二酸对α－Fe_2O_3单分散溶胶的絮凝──稳定性 |
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| 引用本文： | 吕彤,张玉亭.羟基丁二酸对α－Fe_2O_3单分散溶胶的絮凝──稳定性[J].天津工业大学学报,1995(2). |
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| 作者姓名： | 吕彤 张玉亭 |
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| 作者单位： | 天津纺织工学院材料科学系 |
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| 摘 要： | 研究了羟基酸系列之一的羟基丁二酸（苹果酸）体系对α－Ｆｅ＿２Ｏ＿３单分散溶胶稳定性的影响，讨论了该体系的絮凝机理．实验表明：①羟基丁二酸对α－Ｆｅ＿２Ｏ＿３溶胶的聚沿作用有别于一般电解质．②影响该体系的絮－稳定性的主要因素是体系的酸度和絮凝剂浓度．③羟基丁二酸对α－Ｆｅ＿２Ｏ＿３单分散溶胶的絮凝和再稳定是受表面化学反应所控制．属于特殊吸附絮凝．
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| 关 键 词： | 羟基丁二酸，反电离子，絮凝，再稳定 |
Effect of hydroxybutanedioic acid on the stability of monodispersed hematite sol |
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| Lu Tong, Zhang Yuting.Effect of hydroxybutanedioic acid on the stability of monodispersed hematite sol[J].Journal of Tianjin Polytechnic University,1995(2). |
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| Authors: | Lu Tong Zhang Yuting |
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| Affiliation: | Dept.of material Science |
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| Abstract: | The effect of hydroxybutanedioic acid on the stability of monodispersed hematite sol was studied and the mechanism of coagulation is discussed. The re-sults indicate that:(1) hematite sol are coagulated in the hydroxybutanedioic acid which is diffenent from normal electrolytes.(2)main factors to affect the coagula-tion-stability of the sol are acidity of the system and concentration of coagulating agent.(3)coagulation and stability of monodispersed hematite in the hydroxybu-tanedioic acid are controlled by surface chemical reaction. The mechanism of coag-ulation is typical adsorption coagulation. |
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| Keywords: | Hydroxybutanedioic acid Counterion Coagulation Restability |
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