无机聚合絮凝剂的结构研究  

The Structure Study of Inorganic Polymer Floccutant

作　　者：陈济舟[1] 于海斌[2] 王俊桥[1] 曹继贤 

机构地区：[1]天津理工学院材料物理所,天津300191 [2]天津化工研究院,天津300131

出　　处：《无机化学学报》2000年第5期729-732,共4页Chinese Journal of Inorganic Chemistry

摘　　要：本文用广角度Ｘ射线散射（ＷＡＸＳ）和径向分布函数（ＲＤＦ）方法对聚合硅硫酸铝钾ＴＸ２０３絮凝剂的结构进行了分析。ＷＡＸＳ和 ＲＤＦ分析指出：该絮凝剂是一种有序尺寸（Ｄ）约为 ２２－２５Ａ非晶固体。它是由有序周期（ｒ１）＝１２－１４Ａ的中程有序畴组成的。而这些有序畴又是由三种结构单元，即四面体［ＳＯ４］，［ＡＩＯ４］（Ｏ＝Ｏ，ＯＨ）和八面体［ＡＩＯ６］（Ｏ＝Ｏ，ＯＨ）组成的。Ｄ／ｒ１＝２～３，因此ＴＸ２０３是一种低聚体。在ＴＸ２０３絮凝剂中Ｓｉ有增强结构序性的作用。The structure IPF(Inorganic Polymer Floccutant) TX203 has been studied using the wide angle X-ray scattering(WAXS) and radial distribution function (RDF). WAXS and RDF show that TX203 is an amorphous solid with ordering size (D) of about 22 - 25A. It is made up of medium range ordering domains with approximate periodicity (r1 ) of 12 - 14A, and these domains are composed of three kinds of structural unit: tetrahedra [SO4], [AlO4] (O = O, OH) and octahedron [AlO6] (O = O, OH). D/ r1 = 2 - 3, hence,TX203 is a low polymer. The adding of Si can enhance the structure ordering in IPF.

关 键 词：无机聚合絮凝剂 非晶体结构 WAXS RDF 水处理剂 

分 类 号：TU991.22[建筑科学—市政工程]