有机蛭石的制备与应用研究现状

从蛭石的晶体化学特征出发,在探讨蛭石有机改性原理的基础上,评述了有机蛭石的改性方法与特点,以及改性蛭石在环境保护和纳米复合材料方面的应用.蛭石层间阳离子的可交换特性是使有机阳离子插入到层间域的驱动力;采用胺盐和有机大分子可获得不同层间距的插层有机蛭石;有机改性蛭石可作为有机污染物的良好吸附剂,也是制备聚合物/蛭石纳米复合材料的前驱体.

Review on the Preparation of Organic Vermiculite and Its Application

From the crystal chemical characteristic of vermiculite, the paper reviews the modification and characters of organic vermiculite and the application of modified vermiculite in the environment protection and nanocomposites material based on discussing the organic intercalation principle of vermiculite. The exchangeable characteristic of cation is the driving force that makes the organic cation intercalate the interlayers. The organic intercalated vermiculites with different interlayer spaces are obtained using amine salt and organic large molecular. The organic modification vermiculite can be used as the sorbent of organic contamination and the precursor of preparing polymer/vermiculite nano-composite materials.