Infrared spectroscopy study of structural nature of geopolymeric products
Infrared spectroscopy study of structural nature of geopolymeric products
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地聚合物产品结构性质的红外光谱研究
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Zongjin Li
中科院分区：
文献类型：
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作者：
Yunsheng Zhang;Wei Sun;Zongjin Li
采用红外光谱法系统研究了3种地聚物产物中SiO4和AlO4四面体的成键状态和化学环境。讨论了具有相同化学组成的无定形地聚物与沸石晶体之间的关系。红外光谱分析表明，在土聚水泥的水化过程中，SiO4四面体被AlO4部分键合。这两种四面体共同构建了地聚合物的三维骨架结构。在适宜的反应条件下，地聚物与相应的沸石晶体之间会发生相互转化，表明地聚物的性质可能是相应沸石晶体的无定形等价物。
The bonding status and chemical environment of SiO4 and AlO4 tetrahedras of three types of geopolymeric products were systematically investigated by infrared spectroscopy. The relationship between amorphous geopolymeric products and zeolite crystals with the same overall chemical compositions was also discussed. The infrared evidence shows that SiO4 tetrahedra is partially bonded by AlO4 during the hydration process of geopolymeric cement. The two types of tetrahedras jointly construct the three dimensional framework structures of the geopolymeric products. The mutual transformation between geopolymeric products and corresponding zeolite crystals will take place once the reaction condition is suitable, which reveals that the nature of geopolymeric products are probably the amorphous equivalent of the corresponding zeolite crystals.