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蒙脱石层间的可交换阳离子能被长链四元氨离子替代,产生的粘土在有机溶剂中具有能膨胀、分散的重要特性。亲有机粘土的工业用途广泛,例如,它是油井钻探泥浆,涂料、塑料及润滑脂的重要成分,本文讨论了亲有机粘土在这些方面的应用。亲有机牯土的广泛研究约有50年的历史,然而,既没有搞清它在有机溶剂中膨胀与分散的结构,也没有查明其机理。本文根据对亲有机粘土的结构与膨胀特性的已有认识,试图解释其工业用途。
Exchangeable cations between the montmorillonite layers can be replaced by long-chain quaternary ammonium ions, resulting in clays that have the important properties of swelling and dispersing in organic solvents. Organophilic clays are used in a wide range of industrial applications, for example, as an important component of well drilling muds, coatings, plastics and greases. The use of organophilic clays in these applications is discussed. The extensive study of pro-organic clays has been around for about 50 years, however, neither its structure expanded nor dispersed in organic solvents nor its mechanism has been identified. Based on the prior knowledge of the structure and swelling properties of organophilic clays, this article attempts to explain its industrial use.