用硅烷化双聚体结构分析胶凝物质的聚合趋向

对G级油井水泥、矿渣、赤泥、压蒸粉煤灰和有机硅水解物等含有硅氧四面体结构的物质进行三甲基硅烷化（TMS）处理，用气相色谱分析上术物质的TMS产物中双聚体结构的特征，提出可以根据TMS产物双聚体的不同结构来判定胶凝物质今后的聚合趋向，在胶凝物质硅烷化双聚体衍生物的4种结构中，不对称的结构为主时，该胶凝物质今后有不对称的聚合趋向，表现出具有速凝性；而在胶凝物质双聚体的4种结构中，线形对称结构为主时，线形对称聚合是它的趋向之一，该胶凝物胶凝相对缓慢。

ANALYSIS ON GEL POLYMERIZATION TENDENCY WITH ITS DIMER STRUCTURES OF SILICANE DERIVATIVES

G class oil well cement, slag, red mud, autoclaved fly ash and hydrolyzed organic silicone were treated with trimethylsilicane method (TMS) and their dimer structures of the TMS derivatives were analyzed with gas chromatography. A conclusion is drawn that the polymerization tendency of the gel structures can be deduced from the variance of the dimer structures of its TMS derivatives. As to the four kinds of dimer TMS derivatives, if the unsymmetrical structures are dominant, the gel system presents rapid coagulation and polymerizes erratically. By contrast, if linear and symmetrical structures are dominant, the tendency of linear and symmetrical polymerization would be the case and the gel will show slow coagulation.