粉煤灰的活化性能研究  

Study on activation and property of flyash

作　　者：吕瑶姣[1] 张季爽 彭小平 侯让坤[1] 王智慧[1] 

机构地区：[1]湖南大学环境工程系,河南教育学院化学系

出　　处：《中国环境科学》1996年第2期132-136,共5页China Environmental Science

基　　金：国家自然科学基金;北京中关村地区联合分析测试中心基金

摘　　要：研究了粉煤灰的活化方法，确定了最适宜的活化剂ＨＲ和相应的活化条件。利用ＸＰＳ．ＩＲ．ＴＥＭ．ＴＧＡ和ＤＴＡ等方法研究了活化粉煤灰的表面成分、基团和形貌。考察了活化粉煤灰的疏水性和在有机介质中的分散性及亲和性。证明活化剂分子是以化学键牢固地结合在粉煤灰表面上而使其显著改性。As a consequence of study on the activation method of flyash,the most suitable activator HR and corresponding activation condition were determined. Various methods,including XPS,IR,TEM,TGA and DTA,were applied to research into the surface ingredients,radicals and morphology of activated flyash;and the hydrophobicity of flyash and its dispersivenes and affinity in organic media were also investigated. These lead to the conclusion that the molecules of activator tightly stick to the surface of flyash by chemical bonds,thus obviously modifying its property.

关 键 词：粉煤灰 活化 表面改性 结构分析 表面性质 

分 类 号：TQ536.4[化学工程—煤化学工程]