用硅烷化双聚体结构分析胶凝物质的聚合趋向  

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

作　　者：王晓钧[1] 霍明江[2] 闫继娜[3] 杨南如[1] 

机构地区：[1]南京化工大学材料科学与工程学院,南京210009 [2]中国石油天然气总公司工程技术研究院,天津300451 [3]中国科学院上海硅酸盐研究所,上海200050

出　　处：《硅酸盐学报》2000年第6期575-577,共3页Journal of The Chinese Ceramic Society

摘　　要：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 ,用气相色谱分析上述物质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 .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.

关 键 词：三甲硅烷化 双聚体 凝胶物质 气相色谱 聚合 

分 类 号：O648.17[理学—物理化学]