摘要
基体相在矿物聚合材料结构中起与其他矿物表面键合的作用 ,是材料强度的来源。本实验以富钾岩石提钾后的硅铝质溶胶相加NaOH固体 ,在 6 0℃下制备矿物聚合材料基体相 ,并采用XRD、SEM、IR、NMR等分析手段研究了不同固化时间基体相的结构。研究结果表明 ,在基体相的形成过程中 ,没有新的结晶相产生 ,说明基体相为一种半晶质到非晶质物相 ;随着固化时间的变化 ,其自身 [SiO4]4-四面体发生解聚又重新聚合 。
The geopolymer gel, which can be linked with other minerals in geopolymer, is the source of material strength. In this experiment, geopolymer gel was prepared by the aluminosilicate sol obtained after the extraction of potassium from slate with the addition of NaOH at 60℃. XRD, SEM, IR and NMR were used to investigate the structure of the gel at different solidification time spans. The result shows that there is no new crystal phase produced during the formation of the gel, implying that the gel is amorphous. It is also shown that with the change of the solidification time, the ^(4-) tetrahedron of the gel depolymerizes at first and polymerizes afterwards. The gel forms a compact mass after polymerization.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
2005年第2期133-138,共6页
Acta Petrologica et Mineralogica
基金
教育部博士学科点基金资助项目 (19990 49114 )
内蒙古自治区科技攻关资助项目 (2 0 0 2 0 3 0 7)
