How is thixotropy of gaseous silica formed

The unique ability of gaseous silica to provide rheological control in commercial systems depends on its surface chemistry and chain structure. The particle aggregates can be connected together by hydrogen bonds between hydroxyl groups on the surface to form a three-dimensional silica network, as shown in Figure 3. The liquid is encapsulated in the silica network structure, which eventually leads to an increase in annual and yield values. The hydrogen bonds between aggregates are fragile and can be easily broken by shear forces. However, once the shear force is withdrawn, the hydrogen bonds are restored very quickly, and the silica network structure is reconstructed, and the annual and yield values of the system return to the initial values. Here is the cause and process of meteorological silica thixotropy -- shear thinning and time-dependent recovery behavior.

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