| Title | Effects of Different Dispersants on the Change of Chemical Bond of Colloidal Silica |
| Thematic area | Basic Science |
| Presenter | Mrs. Ting Feng |
| Authors | Mrs. Ting Feng, Zhengzhou University, Zhengzhou - China Mr. Bin Guo, Zhengzhou University, Zhengzhou - China Mr. Yaxian Liu, Zhengzhou University, Zhengzhou - China Mr. Liugang Chen, Zhengzhou University, Zhengzhou - China Mr. Guotian Ye, Zhengzhou University, Zhengzhou - China |
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Abstract
This work aims to study the relationships between dispersants types, addition amount and the change of chemical bonds of the particles of colloidal silica. The impact of dispersant types (phosphate, citric acid, polycarboxylate) on the chemical bond changes of the colloidal silica (solid content of 30%) was investigated during the dehydration condensation reaction. The chemical bonds of the particles and phase transformation of colloidal silica were investigated by Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). Moreover, the change of Si 2p and O 1s binding energy of colloidal silica with different dispersants was analyzed by energy spectrometer for chemical analysis (XPS) in different curing conditions. |
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