蒙脱土的改性方法及应用现状

Modifying Methods of Montmorillonites and Their Applications

由于天然蒙脱土颗粒层间距小,层间化学微环境不利于单体插入,从而和单体的相容性差,为了提高其使用性能并扩大应用领域,就要求对蒙脱土进行改性。改性的方法有有机改性、无机改性和有机/无机复合改性三种,同时列举了各种改性蒙脱土在纳米复合材料、废水处理和催化材料等领域的应用现状。最后,提出要切实加强蒙脱土的层间域微环境和化学改性等基础理论的研究。

The interbedded distance of natural montmorillonite particles is small; and the interbedded chemical microenvironment is not conducive to insert monomer. Thus, the compatibility is poor between montmorillonite and monomer. In order to improve their performance and expand the areas of application, it is necessary for montmorillonites to be modified. There are three methods： organic modification, inorganic modification and organo-inorgano-modification were reviews. Meanwhile, in this paper the applying actualities of montmorillonites in some fields such as nanocomposite, waste water treatment and catalyses were also enumerated. In the end, it was pointed out that the basic theoretical research of montmorillonites＇ interbedded microenvironment and chemical modification should be strengthen in deed.