层间水含量对蛭石有机改性影响的研究  

STUDY ON THE INFLUENCE OF QUANTITY OF INTERLAYER WATER ON VERMICULTE'S ORGANIC MODIFICATION

作　　者：朱建喜[1] 胡大千[2] 何宏平[1] 

机构地区：[1]中国科学院广州地球化学研究所,广东广州510640 [2]长春科技大学材料科学与工程学院,吉林长春130026

出　　处：《矿物学报》2001年第3期464-466,共3页Acta Mineralogica Sinica

基　　金：国家自然科学基金项目 (批准号 :49972 10 8) ;广东省自然科学基金项目 (批准号 :990 5 2 2 )

摘　　要：本文以溴代十六烷基吡啶、磷酸三丁酯对膨胀蛭石和未膨胀蛭石进行了改性处理 ,并用IR、XRD方法研究了蛭石在不同层间水含量情况下 ,这两种有机分子分别进入蛭石层间的难易情况 ,结果表明 :①层间水含量能够对有机分子进入蛭石层间产生影响 ,但对具有较强离子交换能力的有机分子进入层间的影响不大 ;②磷酸三丁酯分子易于与含层间水少的膨胀蛭石结合 ,说明层间水对磷酸三丁酯分子的作用遵循异极性排斥的原则。Vermiculite and expanded vermiculite which were modified by urea, and hexadecyl pyridinium bromide (CPB) and tributylphosphate(TBP) were studied by IR and XRD, and how much these organic compounds were incorporated into vermiculite differing in content of interlayered water is discussed in the paper. The results show that: (1) the content of interlayered water in vermiculite has a great influence on the capability of organic molecules small in size and low in exchange ability to be incorporated into interlayer space, but little on the organic molecules with higher ion exchange ability. (2) The quantity of urea into vermiculite with more interlayered water is more than that into expanded vermiculite with less interlayered water, and TBP is easier to interact with expanded vermiculite with less interlayered water than with more interlayered water.

关 键 词：蛭石 层间水含量 有机改性 IR XRD 溴代十六烷基吡啶 磷酸二丁酯 

分 类 号：P578.963[天文地球—矿物学]