【摘要】 本研究以硼硅酸盐系统的玻璃作为基础玻璃 ,考察基础玻璃粉末在水热热压条件下的反应过程 ,制备出一种水化玻璃固化体。利用IR、DTA、TG和DTG等分析方法讨论了水在水化玻璃固化体的存在形式 ,得出水在水化玻璃固化体是以硅烷醇基≡Si-OH和分子水两种形式存在的结论。并根据对水化过程中固化体的收缩量以及硅烷醇基≡Si-OH含量的分析 ,探讨了水化反应的基本机理 ,揭示出水热热压条件下玻璃的水化过程是由两个阶段构成的 ;第 1阶段主要是以离子交换为主的释碱过程 ;第 2阶段是以水分子的扩散以及碱蚀为主的破坏玻璃网络的溶蚀过程更多还原

【Abstract】 By the hydrothermal hot-pressing (HHP) method, a compacted borosilicate glass with high-containing water has been prepared. The results of IR and DTG state clearly that water in the compacted glass exists in two forms: Si≡OH groups and molecular wate. The strengthended condition, especially high hydrated temperature, contributes to the violent hydrating process. And the hydrated process is composed of two stages: one is the releasing process of alkli due to ion exchange, the other is the decomposing glass process because of the OH - and H 2O reaction to the inner network of glass.更多还原